RESEARCH IN NANOTECHNOLOGY & NANOMATERIALS

Transcription

1 RESEARCH IN NANOTECHNOLOGY & NANOMATERIALS IN KOŠICE INSTITUTE OF MATERIALS RESEARCH OF SAS KOŠICE, SLOVAKIA Jan Dusza PROJECT-GERERATION WORKSHOP , IMR SAS,, Watsonova 47, Košice

2 EUROPE & SLOVAKIA Slovak Republic EUROPE SAS Universities Industry Nano - research in Slovakia/Kosice Institutes of Slovak Academy of Sciences Institutes of Universities

3 NANO RESEARCH / SCIENCE From cca 1995 Main areas: IN SLOVAKIA - Bulk nanostructured materials (metallic, ceramic, composites, etc.); - Nano powder, nanotubes, nanowires; - Polymers and bio materials; - Thin films and coatings; For electro/functional, structural and bio-medical applications. - Education, standardization, application.

4 SLOVAK NETWORKS INSTITUTE OF INORGANIC CHEMISTRY, SAS DEPARTMENT OF CERAMICS INSTITUTE OF EXPERIMENTAL PHYSICS, SAS DEPARTMENT OF MAGNETISM INSTITUTE OF GEOTECHNICS, SAS DEPARTMENT OF MECHANOCHEMISTRY INSTITUTE OF MATERIALS and MACHINE MECHANICS, SAS DEPARTMENT OF MICROSTRUCTURE OF COATINGS and BOUNDARIES INSTITUTE OF PHYSICS, SAS DEPARTMENT OF METAL PHYSICS INSTITUTE OF MATERIALS RESEARCH, SAS DEPARTMENT OF STRUCTURAL CERAMICS - Coordinator ELECTRICAL INSTITUTE OF SAS Centre of Excellence of SAS NANOSTRUCTURED MATERIALS NANOSMART ,

5 SLOVAK NETWORKS NANOSMART + Laboratories from SAS + Laboratories from Universities NATIONAL CENTRE OF EXCELLENCE for 2006 Nano-science & nano-technology

6 INTERNATIONAL ACTIVITIES NanoSci ERA MINAEAST NENAMAT Network for Nanostructured Materials of Associate Candidate Countries NANOMAT-targeted action to encourage the participation of SMEs in the 6FP, in the Nanotechnologies and knowledge based multifunctional materrials fields

7 INTERNATIONAL ACTIVITIES Network for Nanostructured Materials of ACC (NENAMAT, INCO-CT CT ),

8 INTERNATIONAL ACTIVITIES - AIMS of NENAMAT to mobilize in ACC existing human and material resources in the field of nano-structured materials; significantly improve the communication and collaboration between centers working in this area of research in individual ACC and between the Centers in ACC, Member States, Russia & New Independent States (NIS) and Southeast European Countries, (SEEC); to disseminate scientific information as well as results of the research in the field of nanotechnology and nanostructured materials; to consolidate, network and strengthen the RTD potential in the area of ACC; to create a common platform for coordination of the research, education and training activities in ACC in the field of nanostructured materials; to contribute to the building of ERA ;

9 INTERNATIONAL ACTIVITIES - CONSORCIUM of NENAMAT Institute of Materials Research of the Slovak Academy of Sciences, Košice, Slovak Republic Institute of Electrochemistry and Energy Systems of the Bulgarian Academy of Sciences, Sofia, Bulgaria Faculty of Mechanical Engineering of the Brno University of Technology, Brno, Czech Republic Institute of Materials Technology, Tallin Technical University, Tallin, Estonia Research Institute for Technical Physics and Materials Science of the Hungarian Academy of Sciences, Budapest, Hungary Institute of Inorganic Chemistry of the Riga Technical University, Riga, Latvia Faculty of Materials Science and Engineering, Warsaw University of Technology, Warszaw, Poland National Institute of Research and Development for Technical Physics Rumania Jožef Stefan Institute, Department of Engineering Ceramics, University of Ljubljana, Ljubljana, Slovenia Isik University, Maslaki, Istambul, Turkey

10 WORKSHOPS & CONFERENCES NANOVED 03 Bratislava; NANOVED 04 - Košice in cooperation with MINAEAST- NET; MOBILIZATION WORKSHOP - NENAMAT 05 - High Tatras; CAMIN 05 Smolenice Castle; NANOVED 06 / NENAMAT-High Tatras.

11 FACILITIES Recently Processing : Different mills for powder preparation; ECAP systems; Rapid solidification facilities; Hot presses, GPS furnaces ; PVD; thermogravimeter, calorimeter, etc. Characterization & testing OM, SEM, TEM, AEM, HREM 200kV ; SEM JEOL 7000, NanoScan SQUID, AFM, X ray, static and dynamic laser scattering equipments; Micro-nano indentation facilities, mechanical & creep tests, etc; HRTEM 300kV Awaiting Nano - hardness, scratch, tribology impact, 2007, NCE Spark plasma sintering furnace; Advanced PVD; Auger spectroscopy, etc, European Structural Funds , 800 mill Euro for Resarch & Development

12 Institute of Materials Research Slovak Academy of Sciences Watsonova 47, Košice, Slovak Republic Ing. Juraj Ďurišin, CSc. Research topic in Nano Preparation of the nanocrystalline copper powder mixtures (Cu-Al 2 O 3, Cu-MgO...) by different methods based on the combination of mechanical milling with phase transformations of the precursors and their compaction into bulk dispersion strengthened materials Study of dispersoid effect on the nanocrystalline matrix grain stability at elevated temperatures Analyse of mechanical properties in relation to the material microstructure Recent project Evolution and microstructure stability of nanocrystalline grain (No. 2/4172/06)

13 Institute of Materials Research Slovak Academy of Sciences Homogeneous Cu Al 2 O 3 microstructure Bimodal Cu MgO microstructure Al 2 O 3 MgO Al 2 O 3 MECHANICAL PROPERTIES Yield strength (MPa) Tensile strength (MPa) Ductility Brinnel hardness HB (%) Cu 3 vol.% MgO Cu 3 vol.% Al 2 O coarse-grained Cu Hardness HB Cu-MgO Cu-Al2O Temperature ( o C)

14 Group of Nanostructured Magnetic Materials Head: Dr. Ivan Škorvánek, Inst. Exp. Physics SAS, Kosice, Slovakia tel Research interests : composition-structure-property relationship in nanostructured magnetic systems soft magnetic materials with bcc-fe, Fe(Si) and FeCo nanoparticles embedded in a residual amorphous matrix magnetic nanoparticles and nanocapsules with core/shell structure materials for magnetic refrigeration Selected research projects: Volkswagen Foundation VW-I/75961 Soft Magnetic Nanocrystalline Materials with Improved Combination of Application Oriented Properties ( ) NATO PST.EAP.CLG Science for security Novel soft magnetic nanocrystalline alloys with high critical temperatures ( ) COST 523 Structural and functional properties of soft magnetic nanocrystalline materials ( VEGA 2/4065 Structure and magnetic properties of transition metal based nanocrystalline materials prepared by controlled crystallization from amorphous precursors ( ) APVT New multiphase materials with defined microstructure and extraordinary physical properties ( ) APVT Synthesis and characterization of nanomaterials prepared by non-traditional methods from metals and raw materials precursors ( )

15 Group of Nanostructured Magnetic Materials Selected results HRTEM of Fe-based nanocapsules Magnetisation [Am 2 /kg] Zero field Longitudinal field (20 kam -1 ) Transverse field (640 kam -1 ) (FeCo) 81 Nb 7 B 12 annealed at 500 C/1h H [A/m] Improved soft magnetic properties of nanocrystalline FeCoNbB after heat treatment in external magnetic field Magnetization curves for Dy/Dy 2 O 3 nanoparticles at low temperatures

16 SCENET The European Network for Superconductivity REBCO Effort Group: Ceramic Superconductors and Nanomaterials Institute of Experimental Physics, SAS Head: Pavel Diko, Research field: - nano-pining centers in singlegrain REBCO bulk superconductors - synthesis of nanoparticles stable at high temperatures - trapping of nanoparticles by growing crystal Projects: SCENET, THE EUROPEAN NETWORK FOR SUPERCONDUCTIVITY, GROWTH 5 RP EFFORT, The European Forum for Processors of Large Grain (RE)BCO Funded by the UK goverment and by European Commission NENAMAT, NANOSMART

17 20 n 10 0 d d 211 [μm] Ubp [µm] µm Y 2 Ba 4 CuUO x particles trapped in YBa 2 Cu 3 O x crystal at 1000 o C 5 µm

18 YBa 2 Cu 3 O 7 Y 2 O 3 CeO 2 After milling

19 STRUCTURAL CERAMICS DEPARTMENT, CENTRE OF EXCELLENCE FOR NANOSTRUCTURED MATERIALS OF SAS AT INSTITUTE OF MATERIALS RESEARCH Prof. Dr. Jan Dusza, Dr.Sc.,., - jdusza@imr.saske.sk Development of structural ceramic nanocomposites characterization of microstructure and testing of mechanical properties 5FP- Structural integrity of ceramic multilayers and coatings (SICMAC, RTN ), 00488), FP Knowledge based Multicomponent Materials, ( KMM-NoE, ), 2), FP Network for Nanostructured Materials of ACC (NENAMAT, INCO-CT CT ),

20 Si 3 N 4 + SiC nanocomposites High - temperature materials, high thermal efficiency and lower exhaust emission; Sintering additives/intergranular phase Si 3 N 4 + SiC nanocomposite HT properties: strength, creep, fatigue

21 PROCESSING Si 3 N 4 +SiC Polysilazane [MeSiH-NH] m [Me 2 SiNH] n α-si 3 N 4 Powder + [(Me 2 Si) m (MePhSi)] n + Y 2 O 3 +Al 2 O 3 α-si 3 N 4 Powder + amorphous Si-C-N + Y 2 O 3 +Al 2 O 3 Pyrolysis, C, Ar Milling/Pressing Milling/Pressing Silicon Carbonitride Si x C y N z Pyrolysis C, Air Sieving/Drying + Y 2 O 3 + Al 2 O 3 Milling/Pressing Sintering C C, N 2 CIP, GPS/HT Sintering C, N 2 β-si 3 N 4 + β-sic Composite β-si 3 N 4 + β-sic Composite β-si 3 N 4 + β-sic Composite

22 J.Dusza et al J. Am. Ceram. Soc., 87, (2005), CREEP DAMAGE IN Si 3 N 4 AND Si 3 N 4 +SiC Si 3 N 4 Si 3 N 4 Si 3 N 4 Si 3 N 4 Si 3 N 4 SiC Si 3 N 4 SiC Si 3 N 4 SiC Si 3 N 4

23 CREEP RESISTANCE IMPROVEMENT OF Si 3 N 4 CERAMICS BY INTERCORPORATING SiC NANOPARTICLES INTO THE Si 3 N 4 / Si 3 N 4 BOUNDARIES COOPERATION: IMR SAS, IACH SAS, QM University of London -1 ] Creep Rate [s 1E-7 1E-8 1E-9 Nanocomposit SiCN-derived Carbon derivedl mixed Si 3 N 4 +SiC monolithic Si N, 3 4 Y 2 O 3 SiC Si 3 N 4 Si 3 N nm 6.6 A 1E-10 5,6 5,8 6,0 6,2 6,4 6,6 6,8 7, /T[K -1 ] CHANGED CREEP MECHANISMS IMPROVED CREEP RESISTANCE

24 12,00 nc - MeN/ kov Me = W, Cr nc - MeC/a C nc - MeC/a C:H nc - MeC/DLC nc - MeC/a CNx nc - MeC/a-C+a-nitrid nc - MeN/DLC nc - MeN/a nitrid F [mn] 10,00 8,00 6,00 4,00 2,00 0,00 0,00E+00 5,00E-02 1,00E-01 1,50E-01 h [?m] Hardness of the WC/C coat is 40 GPa measured by nanoindentation

25 THANK YOU