Tribological behaviour of carbon filled hybrid UHMWPE composites in water

Size: px
Start display at page:

Download "Tribological behaviour of carbon filled hybrid UHMWPE composites in water"

Transcription

1 Tribological behaviour of carbon filled hybrid UHMWPE composites in water Hari Shankar Vadivel, Arash Golchin, Nazanin Emami Biotribology group, Division of Machine Elements, Luleå University of Technology, Sweden

2 Introduction Move towards water lubrication Water a better option than EALs (Environmentally Adapted Lubricants) Non toxic, readily available (especially in aqueous envt.) Use of water as lubricant requires use of special materials for shafts, bearing, etc. Prevalence of boundary lubrication 3

3 Introduction Polymer Based Materials (PBMs) PBMs are good candidates for use in boundary lubricated conditions [1-3] Thermoplastics Can follow the substrate deformations Self-lubricating property PLA, PPS, PE, etc. Drawbacks Viscoelastic deformation, water absorption High wear rates [1] Clarke & Allen,, The water lubricated, sliding wear behaviour of polymeric materials against steel, Tribology International, 24(2), ,1991. [2] Rymuza, Tribology of polymers, Archives of Civil and Mechanical Engineering, 7(4), , [3] Brostow, Tribology of polymers and Polymer based composites, Journal of Materials Education Vol.32 (5-6): ,

4 Improvement pathways Cross linking by radiation Carbon based CNTs Graphene Metal particles Fibers Fillers/ composites Improvement pathways Vitamin E Polymer Blending 5

5 Hybrid/Multiscale Composites Combine both micro and nano reinforcements Ability to functionalize the fillers, Possibility to tailor properties, synergistic effect. Micro and nano HA in UHMWPE combine to give better mechanical properties than either of them alone [10] Sustained macroscale super-lubricity in combination of Graphene and Nanodiamonds [11] [10] Kang et al, Mechanical properties study of micro- and nano-hydroxyapatite reinforced ultrahigh molecular weight polyethylene composites, Journal of App. Poly. Sci, 133(3), 1-9, 2016 [11] Berman et al., 2015, Macroscale superlubricity enabled by graphene nanoscroll formation, Research, Vol 348 Issue

6 UHMWPE Ultra High Molecular weight Polyethylene Semi crystalline thermoplastic polymer with Molecular weight usually between 2 and 6 million g/mol High molecular weight imparts toughness Superior performance in load bearing systems where water and non oil based lubrication is used [4,5] and also in biomedical applications [7,8] n > 100,000. Excellent low-speed performance of Rubber/UHMWPE alloy as material for marine stern tube bearings[6] [4] Golchin et al, Tribological behaviour of polymeric materials in water-lubricated contacts, Proc. of the Institution of Mech. Eng. Part J-Journal of Eng. Trib., 227(8), , [7] Affatato et al, Advanced biomaterials in hip joint anthroplasty, Composites Part B: Engineering, 83, , [8] Baena et al, Wear Performance of UHMWPE and Reinforced UHMWPE Composites in Arthroplasty Applications: A Review, Lubricants 2015, 3, ,

7 Research objectives 1. To design Multiscale composites based on UHMWPE 2. To experimentally investigate the synergistic effect of fillers on tribological performance and properties 8

8 Materials Particle Graphene Oxide (GO) Nanodiamonds (ND) Short Carbon Fibers (SCF) UHMWPE Average size Length/width μm Profile nm Ø 5 nm length 100 μm, Ø 7 μm Ø 30 μm Designation Composition (wt%) GO ND SCF UHMWPE Pure UHMWPE 0.5% GO % ND % SCF GO + ND + SCF GO + ND GO + SCF ND + SCF % GO % ND D. Berman, A. Erdemir and A. V. Sumant, Graphene: a new emerging lubricant,, Materials today, vol 17(1), 31-42, 2014 Ullah et al., Reinforcing Effects of Modified Nanodiamonds on the Physical Properties of Polymer-Based Nanocomposites: A Review, Polymer-Plastics Technology and Engineering, 54: , 2015 Chukov et al., Investigation of structure, mechanical and tribological properties of short carbon fiber reinforced UHMWPE-matrix composites, Composites Part B: Engineering, 76, 79-88,

9 Manufacturing Process Sonication in ethanol UHMWPE + Filler Ball Milling Dry/wet Direct Compression Molding Composite powder Drying [13] E. Enqvist, Carbon Nanofiller Reinforced UHMWPE for Orthopaedic Applications, LTU,

10 a Measurements and analyses Pin on disc tribo tests LVDT Load Polymer pin Water Disc Time : 20h Sliding distance ~ 9400 m Counter Surface : Inconel 625 discs Load : 88 N Contact pressure 5 MPa SEM Wettability Thermal characterisation DSC TGA a = 4.2mm 11

11 Unfilled UHMWPE-pre milling SEM Unfilled UHMWPE-post milling 50 µm 50 µm GO + ND + SCF Post milling 50 µm 12

12 X ray Microtomography

13 Friction coefficient (μ) Friction Coefficient (μ) 0,2 0,16 0,12 0,08 0,04 0 Reduction of μ with addition of GO and ND 140 μm PE + GO/ND showed higher FC [14,15] GO+ND+SCF displays low μ 21% reduction compared to unfilled UHMWPE [14] Golchin et al., An investigation into tribological behaviour of multi-walled carbon nanotube/graphene oxide reinforced UHMWPE in water lubricated contacts, Trib. Int. 95 (2016) [15] Villain., Nanodiamond/Ultra-High Molecular Weight Polyethylene Composites for Bearing Applications, report, LTU,

14 Specific wear rate 10-6 mm3/nm Specific wear rate (SWR) of polymer composites 2 1,6 1,2 0,8 0,4 0 Even though 10% SCF shows high μ, wear rate is not - SCF can protect the polymer from abrasion. Low value of GO+ND+SCF 15% decrease from unfilled UHMWPE 140 μm UHMWPE+GO has higher wear rate [14] [14] Golchin et al., An investigation into tribological behaviour of multi-walled carbon nanotube/graphene oxide reinforced UHMWPE in water lubricated contacts, Trib. Int. 95 (2016)

15 GO+UHMWPE Wear tracks ND+UHMWPE 200 µm 200 µm SCF+UHMWPE GO + ND + SCF + UHMWPE 200 µm 200 µm 16

16 Wettability Sl. No. Sample Mean Contact angle 1 Pure UHWMPE wt% GO wt% GO wt% ND wt% ND wt% SCF GO + ND + SCF GO + ND 88 9 GO + SCF ND + SCF 89.5 Hydrophobicity of UHMWPE is an important factor in low wear rate in metal-on-polymer contacts [19] All fillers used tend to increase hydrophobicity 11% increase in contact angle for GO+ND+SCF [19] A. Golchin, G. Simmons, S. Glavatskih, B. Prakash, Tribological behaviour of polymeric materials in water-lubricated contacts, proc. of the inst. of mech. eng-. part j-journal of engineering tribology 227 (8) (2013)

17 Contact angle vs. μ Higher the contact angle, lower the μ as desired. GO+ND+SCF exhibits low wear and lowest μ with good hydrophobic nature. 18

18 Crystallinity (%) Differential Scanning Calorimetry Crystallinity not affected by manufacturing process Similarly, no effect on melting point Note: Crystallinity was improved with the addition of small amount of GO and ND act as nucleation centers [22,23] SCF inhibits chain formation[17] [ [17] Enqvist et al., Nanodiamond reinforced uhmwpe: a comparison of dry and wet ball milling manufacturing, Tribology - Materials, Surfaces & Interfaces Volume 8, Issue 1,

19 Thermo-gravimetric analysis Thermal stability of polymers Weight left Label Observation 100 % T0 point just before any temperature changes start to occur 95 % T1 temperature for maximum sample mass 90% T2 end of the gradual weight loss 5% T3 rapid degradation ends 1% T4 sample has achieved complete decomposition Composite Temperature ( C) ± Standard deviation T0 T1 T2 T3 T4 UHMWPE 167± ± ± ± ±1.6 GO+ND+SCF 210± ± ±4 489± ±4.3 Composite GO+ND+SCF has the most delayed temperature points Delayed oxidation and consequent degradation [18] [18] R. J. M. John M. Chalmers, Chapter 10 polymer degradation and oxidation: An introduction, in: Comprehensive Analytical Chemistry, Wiley, 2008, pp

20 Concluding remarks Manufacturing process has been optimized. Use of smaller PE particles has a positive influence on performance and properties. Inclusion of fillers did not affect crystallinity Thermal stability of polymer composites was improved Hybrid composite has been prepared and shown to perform well. GO+ND+SCF has good hydrophobic nature - 11% increase low μ - 21% less than unfilled UHMWPE low wear - 15% reduction compared to unfilled UHMWPE 21

21 Thank you Contact : hari.vadivel@ltu.se Luleå University of Technology This project was carried out within TRIBOS master (European Master MSc. degree in tribology) 22

22 References 1. Clarke & Allen,, The water lubricated, sliding wear behaviour of polymeric materials against steel, Tribology International, 24(2), , Rymuza, Tribology of polymers, Archives of Civil and Mechanical Engineering, 7(4), , Brostow, Tribology of polymers and Polymer based composites, Journal of Materials Education Vol.32 (5-6): , Golchin et al, Tribological behaviour of polymeric materials in water-lubricated contacts, Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, 227(8), , Markus & Allen, The Sliding Wear of Ultrahigh Molecular-Weight Polyethylene in an Aqueous Environment, Wear 178, 17-28, Hong-ling Qin, Xin-cong Zhou, Xin-ze Zhao, Jing-tang Xing, Zhi-ming Yan, A new rubber/uhmwpe alloy for water-lubricated stern bearings, Wear, Volume 328, 2015, Pages , ISSN , 7. Affatato et al, Advanced biomaterials in hip joint anthroplasty, Composites Part B: Engineering, 83, , Baena et al, Wear Performance of UHMWPE and Reinforced UHMWPE Composites in Arthroplasty Applications: A Review, Lubricants 2015, 3, , Sattari et al., Interphase evaluation and nano-mechanical responses of UHMWPE/SCF/nano- SiO2 hybrid composites: A Review, Polymer Testing 38 (2014) 26-34, Kang et al, Mechanical properties study of micro- and nano-hydroxyapatite reinforced ultrahigh molecular weight polyethylene composites, Journal of Applied Polymer Science, 133(3), 1-9, Berman et al., 2015, Macroscale superlubricity enabled by graphene nanoscroll formation, Research, Vol 348 Issue D. Berman, A. Erdemir and A. V. Sumant, Graphene: a new emerging lubricant,, Materials today, vol 17(1), 31-42, E. Enqvist, Carbon Nanaofiller Reinforced UHMWPE for Orthopaedic Applications, Thesis, LTU, Golchin et al., An investigation into tribological behaviour of multi-walled carbon nanotube/graphene oxide reinforced UHMWPE in water lubricated contacts, Tribology International 95 (2016) Villain., Nanodiamond/Ultra-High Molecular Weight Polyethylene Composites for Bearing Applications, report, LTU, Enqvist et al., Nanodiamond reinforced uhmwpe: a comparison of dry and wet ball milling manufacturing, Tribology - Materials, Surfaces & Interfaces Volume 8, Issue 1, Suner et al., Ultra High Molecular Weight Polyethylene/Graphene Oxide Nanocomposites: Thermal, Mechanical and Wettability Characterisation, Composites Part B Engineering 2015;78(1): R. J. M. John M. Chalmers, Chapter 10 polymer degradation and oxidation: An introduction, in: Comprehensive Analytical Chemistry, Wiley, 2008, pp A. Golchin, G. Simmons, S. Glavatskih, B. Prakash, Tribological behaviour of polymeric materials in water-lubricated contacts, proceedings of the institution of mechanical engineers part j-journal of engineering tribology 227 (8) (2013) N. W. Khun, H. Zhang, L. H. Lim, C. Y. Yue, Tribological properties of short carbon fibers reinforced epoxy composites, Friction (2014)

Tribological Property of FG/UHMWPE Composites

Tribological Property of FG/UHMWPE Composites 5th International Conference on Information Engineering for Mechanics and Materials (ICIMM 2015) Tribological Property of FG/UHMWPE Composites Longhua XU 1, a, Jiatong SHI 1, Yawen ZHENG 1, Xingkai ZHANG

More information

Ultra High Molecular Weight Polyethylene (UHMWPE)

Ultra High Molecular Weight Polyethylene (UHMWPE) Ultra High Molecular Weight Polyethylene (UHMWPE) UTEC is the trade name of the Ultra High Molecular Weight Polyethylene (UHMWPE) developed and produced by Braskem with its own catalyst and production

More information

Genesis of Friction between Macroscale contacts. Reference: Chapter 3 of the text books

Genesis of Friction between Macroscale contacts. Reference: Chapter 3 of the text books Genesis of Friction between Macroscale contacts Reference: Chapter 3 of the text books What is friction? F = W s µ varies as a function of the sliding distance. 1 0.6 0.2 0 0 20 40 60 80 Di stan ce slid

More information

Polymer Composites Filled with RB Ceramics Particles as Low Friction and High Wear Resistant Filler

Polymer Composites Filled with RB Ceramics Particles as Low Friction and High Wear Resistant Filler Tribology Online, 5, 1 (21) 19-26. ISSN 1881-2198 DOI 1.2474/trol.5.19 Article Polymer Composites Filled with RB Ceramics Particles as Low Friction and High Wear Resistant Filler Motoharu Akiyama 1), Takeshi

More information

POLY(LACTIC ACID) BASED SINGLE COMPOSITES

POLY(LACTIC ACID) BASED SINGLE COMPOSITES POLY(LACTIC ACID) BASED SINGLE COMPOSITES S. Ouajai 1*, T. Ungtrakul 1, A. Reung-u-rai 1 and R.A. Shanks 2 1 Department of Industrial Chemistry, Faculty of Applied Science, KMUTNB 1518 Piboonsongkarm road,

More information

WEAR AND MECHANICAL PROPERTIES OF ALUMINIUM HYBRID COMPOSITE (AL2024/AL 2 O 3 /GRAPHITE) FABRICATED BY POWDER METALLURGY

WEAR AND MECHANICAL PROPERTIES OF ALUMINIUM HYBRID COMPOSITE (AL2024/AL 2 O 3 /GRAPHITE) FABRICATED BY POWDER METALLURGY Volume 116 No. 23 2017, 231-236 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu WEAR AND MECHANICAL PROPERTIES OF ALUMINIUM HYBRID COMPOSITE (AL2024/AL

More information

Microstructural Evolution of Ti-Mo-Ni-C Powder by Mechanical Alloying

Microstructural Evolution of Ti-Mo-Ni-C Powder by Mechanical Alloying Materials Transactions, Vol. 50, No. 1 (2009) pp. 117 to 122 #2009 The Japan Institute of Metals Microstructural Evolution of -Mo-Ni-C Powder by Mechanical Alloying Hiroyuki Hosokawa, Kiyotaka Kato, Koji

More information

TRIBOLOGICAL CHARACTERISTICS OF ALUMINIUM HYBRID COMPOSITES REINFORCED WITH SILICON CARBIDE AND

TRIBOLOGICAL CHARACTERISTICS OF ALUMINIUM HYBRID COMPOSITES REINFORCED WITH SILICON CARBIDE AND Journal of the Balkan Tribological Association Vol. 19, No 1, 83 96 (213) Hybrid composites TRIBOLOGICAL CHARACTERISTICS OF ALUMINIUM HYBRID COMPOSITES REINFORCED WITH SILICON CARBIDE AND GRAPHITE. a review

More information

University of Groningen. Tribological behaviour of laser-clad TiCp composite coating Ouyang, J.H.; Pei, Yutao T.; Lei, T.C.; Zhou, Y.

University of Groningen. Tribological behaviour of laser-clad TiCp composite coating Ouyang, J.H.; Pei, Yutao T.; Lei, T.C.; Zhou, Y. University of Groningen Tribological behaviour of laser-clad TiCp composite coating Ouyang, J.H.; Pei, Yutao T.; Lei, T.C.; Zhou, Y. Published in: Wear DOI: 10.1016/0043-1648(95)06604-7 IMPORTANT NOTE:

More information

Progress on cellulose nanofiberfilled thermoplastic composites

Progress on cellulose nanofiberfilled thermoplastic composites Progress on cellulose nanofiberfilled thermoplastic composites Douglas J. Gardner, Yousoo Han, Alper Kiziltas, and Yucheng Peng Session 5: The role of nanotechnology in green materials and sustainable

More information

Friction and wear properties of copper-based composites reinforced with microand nano-sized Al 2 O 3 particles

Friction and wear properties of copper-based composites reinforced with microand nano-sized Al 2 O 3 particles ART 21 YEARS OF BALKAN TRIBOLOGICAL ASSOCIATION ROMANIAN TRIBOLOGY ASSOCIATION UNIVERSITY PETROLEUM-GAS OF PLOIESTI, ROMANIA BALKANTRIB 14 8 th INTERNATIONAL CONFERENCE ON TRIBOLOGY, 3 th Oct.-1 st Nov.214,

More information

Development and Investigation of Mechanical Properties of PEEK Fine Particles Reinforced UHMWPE Composites

Development and Investigation of Mechanical Properties of PEEK Fine Particles Reinforced UHMWPE Composites International Journal of Applied Engineering Research ISSN 973-4562 Volume 11, Number 2 (216) pp 1298-133 Development and Investigation of Mechanical Properties of PEEK Fine Particles Reinforced UHMWPE

More information

Arch. Metall. Mater., Vol. 61 (2016), No 1, p

Arch. Metall. Mater., Vol. 61 (2016), No 1, p Arch. Metall. Mater., Vol. 61 (2016), No 1, p. 177 182 DOI: 10.1515/amm-2016-001 K. Gawdzińska*, K. Bryll*,#, D. Nagolska** INFLUENCE OF HEAT TREATMENT ON ABRASIVE WEAR RESISTANCE OF SILUMIN MATRIX COMPOSITE

More information

Microstructures and Mechanical Properties of (Ti 0:8 Mo 0:2 )C-30 mass% Ni without Core-Rim Structure

Microstructures and Mechanical Properties of (Ti 0:8 Mo 0:2 )C-30 mass% Ni without Core-Rim Structure Materials Transactions, Vol. 51, No. 8 (2010) pp. 1428 to 1432 #2010 The Japan Institute of Metals Microstructures and Mechanical Properties of (Ti 0:8 Mo 0:2 )C-30 mass% Ni without Core-Rim Structure

More information

Enhanced Thermal Conductivity of Polyimide Films via a Hybrid of Micro- and Nano-Sized Boron Nitride

Enhanced Thermal Conductivity of Polyimide Films via a Hybrid of Micro- and Nano-Sized Boron Nitride The 2012 World Congress on Advances in Civil, Environmental, and Materials Research (ACEM 12) Seoul, Korea, August 26-30, 2012 Enhanced Thermal Conductivity of Polyimide Films via a Hybrid of Micro- and

More information

Tribology behavior of a lubricant with nano-diamond particles on steel

Tribology behavior of a lubricant with nano-diamond particles on steel Tribology behavior of a lubricant with nano-diamond particles on steel SUNG-WAN HWANG 1, SUNG-CHUL CHANG 1, TE ZHANG 1, HO-KYUNG KIM* 2 1 Dept. of Automotive Engineering, Graduate School, Seoul National

More information

Wet Sliding Wear and Frictional Behavior of Commercially Available Perspex

Wet Sliding Wear and Frictional Behavior of Commercially Available Perspex Sliding Wear and Frictional Behavior of Commercially Available Perspex S. Reaz Ahmed, M. S. Kaiser International Science Index, Mechanical and Materials Engineering waset.org/publication/10008136 Abstract

More information

A Study on Mechanical Properties of Aluminium LM25- Si c Composites Fabricated Using Stir Casting Technique

A Study on Mechanical Properties of Aluminium LM25- Si c Composites Fabricated Using Stir Casting Technique A Study on Mechanical Properties of Aluminium LM25- Si c Composites Fabricated Using Stir Casting Technique.Satyanarayen 1, Dominic Roystan 2, M.Shreesaravanan 3 Balaguru 4, C.Devanathan 5 1,2,3,4 UG Students,

More information

Self Healing Ceramic (Surfaces)

Self Healing Ceramic (Surfaces) Self Healing Ceramic (Surfaces) KIVI NIRIA Jaarcongres 23 november 2011 Matthijn de Rooij University of Twente Laboratory for Surface Technology and Tribology Introduction Technical Ceramics Crystalline

More information

Influence of the Stacking Sequence on the Tensile Properties of Hybrid Composite

Influence of the Stacking Sequence on the Tensile Properties of Hybrid Composite Influence of the Stacking Sequence on the Tensile Properties of Hybrid Composite Dr. Noori Hasoon Mohammed Al-Saadi Assistant Professor,. Dijlah University, building and Construction Engineering ABSTRACT

More information

Electrical and Thermal Properties of Electrically Conductive Adhesives Using A Heat-resistant Epoxy Binder

Electrical and Thermal Properties of Electrically Conductive Adhesives Using A Heat-resistant Epoxy Binder Electrical and Thermal Properties of Electrically Conductive Adhesives Using A Heat-resistant Epoxy Binder Masahiro Inoue 1),3) and Johan Liu 1),2) (1) Department of Microtechnology and Nanoscience, Chalmers

More information

Study of Wear Behaviour of Recycled Metal Powder Filled Epoxy Composites Using Factorial Analysis

Study of Wear Behaviour of Recycled Metal Powder Filled Epoxy Composites Using Factorial Analysis American Journal of Materials Science 2016, 6(4A): 82-87 DOI: 10.5923/c.materials.201601.16 Study of Wear Behaviour of Recycled Metal Powder Filled Epoxy Composites Using Factorial Analysis M. Sudheer

More information

The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer

The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer lubricants Article The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer Graciliano Fernandes, *, Paulo Zanotto and Amilton Sinatora

More information

WEAR AND FRICTION BEHAVIOUR OF A LUBRICATED THERMOSET-PAIRING ON A BALL-ON-THREE-PLATES-TEST

WEAR AND FRICTION BEHAVIOUR OF A LUBRICATED THERMOSET-PAIRING ON A BALL-ON-THREE-PLATES-TEST WEAR AND FRICTION BEHAVIOUR OF A LUBRICATED THERMOSET-PAIRING ON A BALL-ON-THREE-PLATES-TEST TRACK OR CATEGORY Materials Tribology VI AUTHORS AND INSTITUTIONS D. Rocker 1,2, T. Stöberl 1, Y. Zhu 1, M.

More information

Nano Technologies for Aerospace Applications

Nano Technologies for Aerospace Applications Nano Technologies for Aerospace Applications Opportunities for Innovations and New Products in Aerospace and Follow-on Markets Pontus Nordin Technical fellow Saab Aeronautics Message Nano-engineered multifunctional

More information

1/31/ Plastics Processing. Thermoplastics (Tampere)

1/31/ Plastics Processing. Thermoplastics (Tampere) 1/31/2012 1 Plastics Processing Thermoplastics (Tampere) 1/31/2012 2 Plastics processing Micro-scale melt processing Small Scale Processing Pilot Scale Processing Injection Moulding Extrusion Pre- and

More information

Friction and Wear Properties of Copper/Carbon/RB Ceramics Composite Materials under Dry Condition

Friction and Wear Properties of Copper/Carbon/RB Ceramics Composite Materials under Dry Condition Tribology Online, 3, 4 (28) 222-227. ISSN 1881-2198 DOI 1.2474/trol.4.222 riction and Wear Properties of /Carbon/RB Ceramics Composite Materials under Dry Condition Kei Shibata 1)*, Takeshi Yamaguchi 1),

More information

iglidur A180 FDA-general purpose waterproof material

iglidur A180 FDA-general purpose waterproof material A18 A18 FDA-general purpose waterproof material Standard range from stock The A18 material complies with FOOD AND DRUG ADMINISTRATION (FDA) regulations For direct contact with food or pharmaceuticals For

More information

material information 1

material information 1 material information 1 PTE PURE, virginal NUE 1 Polytetrafluoroethylene PTE is a polymerisate of tetrafluoroethylene. It is a partially crystalline fluorinated plastic with the highest level of fluorination.

More information

Tribology in Industry. Friction Coefficient of UHMWPE During Dry Reciprocating Sliding

Tribology in Industry. Friction Coefficient of UHMWPE During Dry Reciprocating Sliding Vol. 36, No. 3 (2014) 281-286 Tribology in Industry www.tribology.fink.rs RESEARCH Friction Coefficient of UHMWPE During Dry Reciprocating Sliding F. Živić a, M. Babić a, S. Mitrović a, D. Adamović a,

More information

Overview. Research area Most recent projects highlights. Dr. Elaheh Ghassemieh Mechanical Engineering Department University of Sheffield

Overview. Research area Most recent projects highlights. Dr. Elaheh Ghassemieh Mechanical Engineering Department University of Sheffield Overview Research area Most recent projects highlights Dr. Elaheh Ghassemieh Mechanical Engineering Department University of Sheffield Research areas Nonwovens Novel materials and their processes Bio-composites

More information

COMMERCIALLY AVAILABLE ENHANCEMENT OF POLYMER PROPERTIES FOR TRIBOLOGICAL APPLICATIONS

COMMERCIALLY AVAILABLE ENHANCEMENT OF POLYMER PROPERTIES FOR TRIBOLOGICAL APPLICATIONS COMMERCIALLY AVAILABLE ENHANCEMENT OF POLYMER PROPERTIES FOR TRIBOLOGICAL APPLICATIONS M.Sc.Eng. Olga KONOVALOVA, Prof. M.Sc.Eng. Jan SUCHANEK, CSc, M.Sc.Eng. Frantisek TATICEK Czech Technical University,

More information

ANALYSIS OF TEMPERATURE INFLUENCE ON INJECTION MOLDING PROCESS

ANALYSIS OF TEMPERATURE INFLUENCE ON INJECTION MOLDING PROCESS Proceedings in Manufacturing Systems, Volume 11, Issue 2, 2016, 95 100 ISSN 2067-9238 ANALYSIS OF TEMPERATURE INFLUENCE ON INJECTION MOLDING PROCESS Karel RAZ 1,*, Martin ZAHALKA 2 1) PhD, Lecturer, Eng.,

More information

Engineered Polymers (Semi-crystalline)

Engineered Polymers (Semi-crystalline) Engineered Polymers (Semi-crystalline) Semilon POMC/CESD (Acetal/SD Acetal) Good mechanical properties - impact and strength Good wear resistance Good chemical resistance Good candidates for use in many

More information

Grafen i Flygapplikationer

Grafen i Flygapplikationer Grafen i Flygapplikationer Möjliga innovationer och nya produkter för flyg och andra marknader med liknande materialanvändning Pontus Nordin Technical fellow, Saab Aeronautics LIGHTer årsstämma och workshop,

More information

Short Aramid Fibre Reinforced Ultra-High Molecular Weight Polyethylene Composite. A new hip-prosthesis Hofsté, Joanna Maria

Short Aramid Fibre Reinforced Ultra-High Molecular Weight Polyethylene Composite. A new hip-prosthesis Hofsté, Joanna Maria University of Groningen Short Aramid Fibre Reinforced Ultra-High Molecular Weight Polyethylene Composite. A new hip-prosthesis Hofsté, Joanna Maria IMPORTANT NOTE: You are advised to consult the publisher's

More information

CHAPTER 9 PCABS, PP and PPS Composites Characterization - Results and Discussion: Part II Thermal Analysis: Thermal Conductivity, Thermogravimetric

CHAPTER 9 PCABS, PP and PPS Composites Characterization - Results and Discussion: Part II Thermal Analysis: Thermal Conductivity, Thermogravimetric CHAPTER 9 PCABS, PP and PPS Composites Characterization - Results and Discussion: Part II Thermal Analysis: Thermal Conductivity, Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry

More information

INTRODUCTION. Think HSS

INTRODUCTION. Think HSS INTRODUCTION Think HSS SUMMARY METALLURGY 2 Excellent strength 3 A super sharp edge 4 Safe and reliable tools Alloy elements 6 The influence of alloy elements 7 Standard compositions of HSS 8 The HSS-PM

More information

Computational and Analytical Methods in AM: Linking Process to Microstructure

Computational and Analytical Methods in AM: Linking Process to Microstructure Computational and Analytical Methods in AM: Linking Process to Microstructure Greg Wagner Associate Professor, Mechanical Engineering Northwestern University Workshop on Predictive Theoretical and Computational

More information

DRY SLIDING WEAR BEHAVIOUR OF STIR CAST LM 25/ZrO 2 METAL MATRIX COMPOSITES

DRY SLIDING WEAR BEHAVIOUR OF STIR CAST LM 25/ZrO 2 METAL MATRIX COMPOSITES Govindan Karthikeyan GowthamiThankachi Raghuvaran Jinu ISSN 1333-1124 eissn 1849-1391 DRY SLIDING WEAR BEHAVIOUR OF STIR CAST LM 25/O 2 METAL MATRIX COMPOSITES Summary In the present study, an investigation

More information

Mechanical Characterisation of Polyamide 66/Graphite Nanocomposites

Mechanical Characterisation of Polyamide 66/Graphite Nanocomposites International Journal of Materials Science ISSN 0973-4589 Volume 12, Number 3 (2017), pp. 411-420 Research India Publications http://www.ripublication.com Mechanical Characterisation of Polyamide 66/Graphite

More information

Coathylene Polymer Powders

Coathylene Polymer Powders Enhanced processing efficiency of Glass fiber reinforced plastics Improved dimensional stability Improved surface finish and appearance Anti-Shrink additive for low profile Coathylene fine powders are

More information

High Modulus Carbon Fibres in Super-Structural Compounds

High Modulus Carbon Fibres in Super-Structural Compounds High Modulus Carbon Fibres in Super-Structural Compounds As a matter of fact, even if composite properties guarantee the best answer to the most severe project requirements, many industrial products can

More information

EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYGROTHERMAL AGING ON THE MECHANICAL BEHAVIOR OF CARBON NANOTUBE/PA6 NANOCOMPOSITE

EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYGROTHERMAL AGING ON THE MECHANICAL BEHAVIOR OF CARBON NANOTUBE/PA6 NANOCOMPOSITE EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYGROTHERMAL AGING ON THE MECHANICAL BEHAVIOR OF CARBON NANOTUBE/PA6 NANOCOMPOSITE K.I. TSERPES * Laboratory of Technology & Strength of Materials Department

More information

DuraCer. Ceramic Components. The Strong Choice In Ceramics

DuraCer. Ceramic Components. The Strong Choice In Ceramics The Strong Choice In Ceramics is a magnesia-stabilized zirconia (MgPSZ) ceramic material whose combination of physical properties is attractive for use in orthopaedic surgery. Mg-PSZ ceramic often is referred

More information

Characterization of Isotactic Polypropylene/ Talc Composites Prepared by Extrusion Cum Compression Molding Technique

Characterization of Isotactic Polypropylene/ Talc Composites Prepared by Extrusion Cum Compression Molding Technique Materials Sciences and Applications, 2015, 6, 925-934 Published Online November 2015 in SciRes. http://www.scirp.org/journal/msa http://dx.doi.org/10.4236/msa.2015.611093 Characterization of Isotactic

More information

MICROCELLULAR NANOCOMPOSITE INJECTION MOLDING PROCESS

MICROCELLULAR NANOCOMPOSITE INJECTION MOLDING PROCESS MICROCELLULAR NANOCOMPOSITE INJECTION MOLDING PROCESS Mingjun Yuan (1),Lih-Sheng Turng (1)*, Rick Spindler (2), Daniel Caulfield (3),Chris Hunt (3) (1) Dept. of Mechanical Engineering, University of Wisconsin-Madison,

More information

New Compounding Solutions for PremiumContact 6

New Compounding Solutions for PremiumContact 6 Bitte decken Sie die schraffierte Fläche mit einem Bild ab. Please cover the shaded area with a picture. (24,4 x 7,6 cm) New Compounding Solutions for PremiumContact 6 Dr. Stefan Torbrügge, Head of Global

More information

Ion Nitriding of Stainless Steel: III

Ion Nitriding of Stainless Steel: III Ion Nitriding of Stainless Steel: III INFLUENCE OF MICROSTRUCTURE ON NITRIDING PROPERTIES OF STAINLESS STEEL D. Manova, S. Heinrich, I. Eichentopf, S. Mändl, H. Neumann, B. Rauschenbach Financial Support

More information

Is Super 5 Rayon possible? Dr. Axel Rußler, DI Bernhard Müller R&D Glanzstoff Industries

Is Super 5 Rayon possible? Dr. Axel Rußler, DI Bernhard Müller R&D Glanzstoff Industries Is Super 5 Rayon possible? Dr. Axel Rußler, DI Bernhard Müller R&D Glanzstoff Industries 10.09.2014 Overview Glanzstoff Industries High Tech Cellulose The Glanzstoff Approach Glanzstoff at a Glance Tire

More information

iglidur J200 For Anodized Aluminium iglidur J200 Phone Fax Very long service life with hard anodized aluminium

iglidur J200 For Anodized Aluminium iglidur J200 Phone Fax Very long service life with hard anodized aluminium For Anodized Aluminium Very long service life with hard anodized aluminium Low coefficients of friction Low wear Maintenance-free 28.1 For Anodized Aluminium The specialist for low friction-values and

More information

RAPID PATTERN BASED POWDER SINTERING TECHNIQUE AND RELATED SHRINKAGE CONTROL

RAPID PATTERN BASED POWDER SINTERING TECHNIQUE AND RELATED SHRINKAGE CONTROL RAPID PATTERN BASED POWDER SINTERING TECHNIQUE AND RELATED SHRINKAGE CONTROL Jack G. Zhou and Zongyan He ABSTRACT Department of Mechanical Engineering and Mechanics Drexel University 3141 Chestnut Street

More information

Materials Engineering PTT 110

Materials Engineering PTT 110 By: Pn. Nurul Ain Harmiza Abdullah Materials Engineering PTT 110 SEMESTER 1 (2013/2014) PowerPoint Lecture Slides for Foundations of Materials Science and Engineering Fifth Edition William F. Smith Javad

More information

The Test for Withstanding Fracture Capacity of Worm Gear Made of Antifriction Composite Material of Polymer Matrix Under Static Loads

The Test for Withstanding Fracture Capacity of Worm Gear Made of Antifriction Composite Material of Polymer Matrix Under Static Loads The Test for Withstanding Fracture Capacity of Worm Gear Made of Antifriction Composite Material of Polymer Matrix Under Static Loads Congqing LI 1,2, Shijie DAI 1,Shuzhong LIN 1 1 School of Mechanical

More information

Process development in stir casting and investigation on microstructures and wear behavior of TiB 2 on Al6061 MMC

Process development in stir casting and investigation on microstructures and wear behavior of TiB 2 on Al6061 MMC Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 64 ( 2013 ) 1183 1190 International Conference On DESIGN AND MANUFACTURING, IConDM 2013 Process development in stir casting

More information

DYNAMIC FRAGMENTATION OF ALUMINA WITH ADDITIONS OF NIOBIA AND SILICA UNDER IMPACT

DYNAMIC FRAGMENTATION OF ALUMINA WITH ADDITIONS OF NIOBIA AND SILICA UNDER IMPACT XXXX TB40 19th International Symposium of Ballistics, 7 11 May 2001, Interlaken, Switzerland DYNAMIC FRAGMENTATION OF ALUMINA WITH ADDITIONS OF NIOBIA AND SILICA UNDER IMPACT L.H.L. Louro1, A.V. Gomes1,

More information

Plasma powder surfacing of babbitt alloys.

Plasma powder surfacing of babbitt alloys. Plasma powder surfacing of babbitt alloys. Kobernik N.V., Mikheev R.S., Gvozdev P.P., Bauman MSTU, koberniknv@bmstu.ru Abstract The various methods of babbitt coatings production have been considered.

More information

Mechanical Behaviour of Copper and Aluminium Particles Reinforced Epoxy Resin Composites

Mechanical Behaviour of Copper and Aluminium Particles Reinforced Epoxy Resin Composites American Journal of Materials Science 2015, 5(4): 84-89 DOI: 10.5923/j.materials.20150504.02 Mechanical Behaviour of Copper and uminium Particles Reinforced Epoxy Resin Composites V. K. Srivastava *, Ansul

More information

On the Wear of AA4015 Fused Silica Metal Matrix Composites. A. Chennakesava Reddy

On the Wear of AA4015 Fused Silica Metal Matrix Composites. A. Chennakesava Reddy On the Wear of AA4015 Fused Silica Metal Matrix Composites A. Chennakesava Reddy Associate Professor, Department of Mechanical Engineering, Vasavi College of Engineering, Hyderabad, India dr_acreddy@yahoo.com

More information

Ceramics in Orthopaedic and Neurosurgery. B. Sonny Bal, MD MBA JD PhD University of Missouri-Columbia Amedica Corporation

Ceramics in Orthopaedic and Neurosurgery. B. Sonny Bal, MD MBA JD PhD University of Missouri-Columbia Amedica Corporation Ceramics in Orthopaedic and Neurosurgery B. Sonny Bal, MD MBA JD PhD University of Missouri-Columbia Amedica Corporation Historic Concern: Wear Bearing Failures of the Past The Rationale for Alternatives

More information

DELIVERY PROGRAMME SEMI-FINISHED PRODUCTS

DELIVERY PROGRAMME SEMI-FINISHED PRODUCTS PA 6 G PA 6 G + Oil (Oilamid ) PA 6 G + Solid lubricant (Lubramid) PA 6 6/12 G (Calaumid 612) PA 12 G (Calaumid 0) PA 6 6/12 G-FE (Calaumid 612-FE) PA 12 G-FE (Calaumid 0-FE) POM PET PE PP PVC PTFE PEEK

More information

BIOACTIVE SILICIUM-CONTAINING COATINGS ON TITANIUM SUBSTRATE

BIOACTIVE SILICIUM-CONTAINING COATINGS ON TITANIUM SUBSTRATE Powder Metallurgy Progress, Vol.11 (2011), No 3-4 271 BIOACTIVE SILICIUM-CONTAINING COATINGS ON TITANIUM SUBSTRATE O. S. Antonova, V. V. Smirnov, S. M. Barinov, N. V. Bakunova, Ľ. Medvecký, J. Ďurišin

More information

11.3 Polishing with Laser Radiation

11.3 Polishing with Laser Radiation 196 E. Willenborg 11.3 Polishing with Laser Radiation Edgar Willenborg The surface roughness of a part or product strongly influences its properties and functions. Among these can be counted abrasion and

More information

High-Performance Plastics for. Drivetrain Systems SPECIALTY

High-Performance Plastics for. Drivetrain Systems SPECIALTY High-Performance Plastics for Drivetrain Systems SPECIALTY POLYMERS Designed for Higher Performance Better than Metal Light weight for improved fuel efficiency Parts consolidation for lower manufacturing

More information

Effect of Normal Load and Sliding Velocity on Friction Coefficient of Aluminum Sliding Against Different Pin Materials

Effect of Normal Load and Sliding Velocity on Friction Coefficient of Aluminum Sliding Against Different Pin Materials American Journal of Materials Science 2012, 2(1): 26-31 DOI: 10.5923/j.materials.20120201.05 Effect of Normal Load and Sliding Velocity on Friction Coefficient of Aluminum Sliding Against Different Pin

More information

- Tensile strength of 50,000 psi per ASTM D-638 or 345 Mpa - Notched Izod impact strength of 35 ft-lb/in per ASTM D-256 or 1868 J/M are achieved.

- Tensile strength of 50,000 psi per ASTM D-638 or 345 Mpa - Notched Izod impact strength of 35 ft-lb/in per ASTM D-256 or 1868 J/M are achieved. PureFlex is a world leading manufacturer of high performance Fluoropolymer and Composite products and technologies. We specialize in the manufacturing of fluid handling and sealing products specifically

More information

The Effects of Superheating Treatment on Distribution of Eutectic Silicon Particles in A357-Continuous Stainless Steel Composite.

The Effects of Superheating Treatment on Distribution of Eutectic Silicon Particles in A357-Continuous Stainless Steel Composite. Please cite this paper as M. N. Mazlee & J. B. Shamsul. (2012). The Effects of Superheating Treatment on Distribution of Eutectic Silicon Particles in A357-Continuous Stainless Steel Composite, Advanced

More information

EFFECT OF VOLUME FRACTION EPOXY-HOLLOW GLASS MICROSPHERES AND CURING TEMPERATURE VARIATION ON COMPRESSIVE PROPERTIES OF COMPOSITES

EFFECT OF VOLUME FRACTION EPOXY-HOLLOW GLASS MICROSPHERES AND CURING TEMPERATURE VARIATION ON COMPRESSIVE PROPERTIES OF COMPOSITES EFFECT OF VOLUME FRACTION EPOXY-HOLLOW GLASS MICROSPHERES AND CURING TEMPERATURE VARIATION ON COMPRESSIVE PROPERTIES OF COMPOSITES Sutikno, Wajan Berata, Wahyu Wijanarko and Indra Sidharta Mechanical Engineering

More information

1. INTRODUCTION. Further exploitation of the technology led to coatings which offer huge

1. INTRODUCTION. Further exploitation of the technology led to coatings which offer huge 1. INTRODUCTION 1.1. GENERAL Surface engineering deals with modification of the surface properties of engineering components as majority of failures originate from the surface. Wear and corrosion are the

More information

Application of computed tomography for an analysis of composite with fine dispersive reinforcement made of the Fe 65 Co 10 Ni 3 W 2 B 20 alloy

Application of computed tomography for an analysis of composite with fine dispersive reinforcement made of the Fe 65 Co 10 Ni 3 W 2 B 20 alloy Volume 83 Issue 1 January 2017 Pages 17-22 International Scientific Journal published monthly by the World Academy of Materials and Manufacturing Engineering Application of computed tomography for an analysis

More information

أت ارش. Dr. Abdel-Wahab El-Morsy Faculty of Engineering - Rabigh

أت ارش. Dr. Abdel-Wahab El-Morsy Faculty of Engineering - Rabigh Basic Workshop 1 أت ارش There are thousands of materials available for use in engineering applications. Most materials fall into one of three classes that are based on the atomic bonding forces of a particular

More information

SHAPE MEMORY EFFECT OF A THERMOSET POLYMER AND ITS FIBER REINFORCED COMPOSITES

SHAPE MEMORY EFFECT OF A THERMOSET POLYMER AND ITS FIBER REINFORCED COMPOSITES 18 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS SHAPE MEMORY EFFECT OF A THERMOSET POLYMER AND ITS FIBER REINFORCED COMPOSITES C. Ayranci 1, F. Ko 1*, T. Howie 2, M.Taya 2 1 Department Materials

More information

Abstract No. 12. Surface chemical and tribological investigation of hot dip galvanized steel sheets coated with a sulfate based layer

Abstract No. 12. Surface chemical and tribological investigation of hot dip galvanized steel sheets coated with a sulfate based layer Abstract No. 12 Surface chemical and tribological investigation of hot dip galvanized steel sheets coated with a Christian Timma 1,2, Thomas Lostak 1, Stella Janssen 1, Jörg Flock 1, Christian Mayer 2

More information

Stabilizers for Coatings Applications Overview Hostavin Hostanox

Stabilizers for Coatings Applications Overview Hostavin Hostanox Stabilizers for Coatings Applications Overview Hostavin Hostanox Stabilizers for Coatings Applications overview Hostavin Hostanox Light stabilizers protect organic coatings against UV-light induced degradations.

More information

Effect of filler addition on the compressive and impact properties of glass fibre reinforced epoxy

Effect of filler addition on the compressive and impact properties of glass fibre reinforced epoxy Bull. Mater. Sci., Vol. 24, No. 2, April 2001, pp. 219 223. Indian Academy of Sciences. Effect of filler addition on the compressive and impact properties of glass fibre reinforced epoxy NIKHIL GUPTA*,

More information

Super Structural Plastics Continue to Push the Frontier of Metal Replacement. Hyundai Fair June 27-29, 2006

Super Structural Plastics Continue to Push the Frontier of Metal Replacement. Hyundai Fair June 27-29, 2006 Super Structural Plastics Continue to Push the Frontier of Metal Replacement Hyundai Fair June 27-29, 2006 Super Structural Plastics Continue to Push the Frontier of Metal Replacement AGENDA Brief history

More information

MECHANICAL BEHAVIOUR OF THERMOPLASTIC (PES, PBT) CARBON NANOFIBRE COMPOSITES

MECHANICAL BEHAVIOUR OF THERMOPLASTIC (PES, PBT) CARBON NANOFIBRE COMPOSITES MECHANICAL BEHAVIOUR OF THERMOPLASTIC (PES, PBT) CARBON NANOFIBRE COMPOSITES A.Gómez [1,2], B. Ramón [1], A. Torregaray [1], J.R. Sarasua [1] [1] University of the Basque Country (EHU-UPV), Department

More information

Fabrication and Characterization of PPS /40%GF/nano- CaCo 3 Hybrid Composites

Fabrication and Characterization of PPS /40%GF/nano- CaCo 3 Hybrid Composites Vol. 3, Issue. 4, July-august. 2013 pp-2262-2266 ISSN: 2249-6645 Fabrication and Characterization of PPS /40%GF/nano- CaCo 3 Hybrid Composites Y.Haribabu 1, K. Ajay sir 2, B. ravikiran 3 *(Mechanical department,

More information

TECHNOLOGICAL AND ECONOMICAL ASSESSMENT OF NANOSCALE FILLERS IN FIBRE REINFORCED THERMOPLASTIC COMPOSITES

TECHNOLOGICAL AND ECONOMICAL ASSESSMENT OF NANOSCALE FILLERS IN FIBRE REINFORCED THERMOPLASTIC COMPOSITES TECHNOLOGICAL AND ECONOMICAL ASSESSMENT OF NANOSCALE FILLERS IN FIBRE REINFORCED THERMOPLASTIC COMPOSITES Robert Brüll 1, Thomas Köhler 1, Gunnar Seide 1, Thomas Gries 1 1 Institut für Textiltechnik (ITA)

More information

Index. Automotive engines, silicon nitride products development, 83-94

Index. Automotive engines, silicon nitride products development, 83-94 Index Advanced composite ceramics, properties and applications, 109-22 Aircraft engine bearings, shaft speed limits, 46-8 Alumina cast sintered, applications, 72-5 comparative erosive wear performance,

More information

VERTICAL PUMP BEARINGS

VERTICAL PUMP BEARINGS VERTICAL PUMP BEARINGS ZERO POLLUTION HIGH PERFORMANCE BEARING & SEAL SYSTEMS HIGH PERFORMANCE OIL & GREASE-FREE PUMP BEARINGS Thordon Bearings is the world s leading manufacturer of high performance,

More information

I.INTRODUCTION. II.CNT-Al NANO-COMPOSITE

I.INTRODUCTION. II.CNT-Al NANO-COMPOSITE International Journal of Advances in Engineering, 2015, 1(3), 362-366 ISSN: 2394-9260 (printed version); ISSN: 2394-9279 (online version); url:http://www.ijae.in RESEARCH ARTICLE Development of Al-CNT

More information

A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY MILLED HDPE AND PP

A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY MILLED HDPE AND PP . MK0400054 >^ A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY.. A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY MILLED HDPE AND PP S.Can* and S.Tan** * Department of Polymer

More information

Room-Temperature Pressureless Bonding with Silver Nanowire. Paste: Towards Organic Electronic and Heat-Sensitive Functional

Room-Temperature Pressureless Bonding with Silver Nanowire. Paste: Towards Organic Electronic and Heat-Sensitive Functional Supplementary Materials Room-Temperature Pressureless Bonding with Silver Nanowire Paste: Towards Organic Electronic and Heat-Sensitive Functional Devices Packaging Peng Peng, a,b Anming Hu,* a Hong Huang,

More information

STUDIES ON MECHANICAL PROPERTIES AND TRIBOLOGICAL BEHAVIOUR OF LM25/SiC/Al 2 O 3 COMPOSITES

STUDIES ON MECHANICAL PROPERTIES AND TRIBOLOGICAL BEHAVIOUR OF LM25/SiC/Al 2 O 3 COMPOSITES Journal of Engineering Science and Technology Vol. 10, No. 2 (2015) 134-144 School of Engineering, Taylor s University STUDIES ON MECHANICAL PROPERTIES AND TRIBOLOGICAL BEHAVIOUR OF LM25/SiC/Al 2 O 3 COMPOSITES

More information

Study of two new DLC coatings for joint prosthesis: effect of the presence of albumin on the tribological behavior

Study of two new DLC coatings for joint prosthesis: effect of the presence of albumin on the tribological behavior Study of two new DLC coatings for joint prosthesis: effect of the presence of albumin on the tribological behavior A. P. Carapeto a, A. P. Serro a,b, R. Colaço c, B. Saramago a a Centro de Química Estrutural,

More information

L Manufacturing of Polymer Composites FS 17 Exercise 2. Exercise 2: Solution

L Manufacturing of Polymer Composites FS 17 Exercise 2. Exercise 2: Solution Exercise 2: Solution MATRIX SYSTEMS ETH Zürich Laboratory of Composite Materials and Adaptive Structures Page 1 Task 1: Polymeric materials a) What part of the composite determines its thermal properties?

More information

FE MODELING OF CFRP STRENGTHENED CONCRETE BEAM EXPOSED TO CYCLIC TEMPERATURE, HUMIDITY AND SUSTAINED LOADING

FE MODELING OF CFRP STRENGTHENED CONCRETE BEAM EXPOSED TO CYCLIC TEMPERATURE, HUMIDITY AND SUSTAINED LOADING FE MODELING OF STRENGTHENED CONCRETE BEAM EXPOSED TO CYCLIC TEMPERATURE, HUMIDITY AND SUSTAINED LOADING H. R. C. S. Bandara (Email: chinthanasandun@yahoo.com) J. C. P. H. Gamage (Email: kgamage@uom.lk)

More information

The Effect of La Addition on the Microstructure and Tensile Properties of Hot-Extruded Al 15%Mg 2 Si Composite

The Effect of La Addition on the Microstructure and Tensile Properties of Hot-Extruded Al 15%Mg 2 Si Composite The Effect of La Addition on the Microstructure and Tensile Properties of Hot-Extruded Al 15%Mg 2 Si Composite Paper Presenter: S.H. Allameh 1 A. Akhlaghi 2, M. Noghani 3, M. Emamy 4. 1,4- School of Metallurgy

More information

Tribology Module4: Lubricants & Lubrication

Tribology Module4: Lubricants & Lubrication Tribology Module4: Lubricants & Lubrication Q.1. What is fluid film lubrication? What is the difference between hydrostatic and hydrodynamic lubrication? Ans: Fluid film lubrication is a generic term used

More information

HT 100 HT 200 HTE FOR THE HIGHEST STANDARDS IN METAL REPLACEMENT AT HIGH OPERATING TEMPERATURES.

HT 100 HT 200 HTE FOR THE HIGHEST STANDARDS IN METAL REPLACEMENT AT HIGH OPERATING TEMPERATURES. TEREZ HT 100 HT 200 HTE FOR THE HIGHEST STANDARDS IN METAL REPLACEMENT AT HIGH OPERATING TEMPERATURES www.terplastics.com www.tergroup.com TEREZ HT 100 HT 200 HTE Metal Replacement at High Operating Temperatures

More information

Enhanced Response from Engineered Nano Treated Peizofilm

Enhanced Response from Engineered Nano Treated Peizofilm Enhanced Response from Engineered Nano Treated Peizofilm By Sai Narayan Sundar Advisor Dr J.P Sharma Dept. of Mechanical Engineering University of Mississippi i: flow of current due to piezo deformation

More information

Mechanical and Tribological Properties of PA66/PPS Blend. II. Filled with PTFE

Mechanical and Tribological Properties of PA66/PPS Blend. II. Filled with PTFE Mechanical and Tribological Properties of PA66/PPS Blend. II. Filled with PTFE Zhaobin Chen,* Xujun Liu, Tongsheng Li, Renguo Lü Department of Macromolecular Science, Key Laboratory of Molecular Engineering

More information

Price and Availability

Price and Availability Price and Availability Outline Introduction Relative cost of materials Example MECH 321 Mech. Eng. Dept. - Concordia University lecture 21/1 Current Prices on the web (a) : - Short term trends: fluctuations

More information

Molybdenum Disulfide - The Ideal Solid Lubricant and Anti-Galling Material. White Paper

Molybdenum Disulfide - The Ideal Solid Lubricant and Anti-Galling Material. White Paper Molybdenum Disulfide - The Ideal Solid Lubricant and Anti-Galling Material White Paper History Molybdenum disulfide is a naturally occurring blackcolored solid compound that feels slippery to the touch.

More information

CRYSTALLIZATION EFFECTS OF CARBON NANOTUBES IN POLYAMIDE 12

CRYSTALLIZATION EFFECTS OF CARBON NANOTUBES IN POLYAMIDE 12 CRYSTALLIZATION EFFECTS OF CARBON NANOTUBES IN POLYAMIDE 12 A Thesis Presented to The Academic Faculty by Rolfe Bradley Johnson In Partial Fulfillment of the Requirements for the Degree Master of Polymers

More information

TECHNICAL STUDY POSITIVE EFFECTS OF MONTAN WAXES ON THE MECHANICAL PROPERTIES OF PA 6 GF 30. Tensile Strength Impact Strength WARADUR E WARADUR OP

TECHNICAL STUDY POSITIVE EFFECTS OF MONTAN WAXES ON THE MECHANICAL PROPERTIES OF PA 6 GF 30. Tensile Strength Impact Strength WARADUR E WARADUR OP TECHNICAL STUDY POSITIVE EFFECTS OF MONTAN WAXES ON THE MECHANICAL PROPERTIES OF PA 6 GF 30 Tensile Strength Impact Strength WARADUR E WARADUR OP POSITIVE EFFECTS OF MONTAN WAXES ON THE MECHANICAL PROPERTIES

More information

Calcium Carbonate in Blown HDPE Film

Calcium Carbonate in Blown HDPE Film Calcium Carbonate in Blown HDPE Film New Developments to Increase Productivity and Profitability by Gil Morieras - Marketing Manager Polyolefines (Omya) and Dr. Gerard Schaeffer (GS Technology) Many interesting

More information

Focus on: FEP. Fluoropolymers. FEP in the fluoropolymer family.

Focus on: FEP. Fluoropolymers. FEP in the fluoropolymer family. TECHNICAL WHITEPAPER ocus on: EP Introduction Continuing our series of looking at the members of the fluoropolymer family in detail, this month we focus on EP (fluoroethylene-propylene). EP is a copolymer

More information

ME 383S Bryant February 10, 2005

ME 383S Bryant February 10, 2005 WEAR 1 Damage to a surface from relative motion Loss of material from surface during sliding Movement of material (plastic deformation) Cracking of surfaces Applications: reduce: brakes, clutches increase:

More information