Formation Mechanism of TaC by Tantalum-contained Resin Precursor

Size: px
Start display at page:

Download "Formation Mechanism of TaC by Tantalum-contained Resin Precursor"

Transcription

1 » 22» 5 É Æ ½ Vol. 22, No Journal of Inorganic Materials Sep., 2007 : X(2007) Ų» À Ö TaC Þ Ð Ñ ( ÎÇ ÉÍ ÌÊË È ÆÏ ) û Ãʲµ± C/C-TaC ÉÆ²Ï Ø C/C ÉƱÎÔµ XRD SEM» Ã Đ ²Òµ± Õ ² Õ Ú Ã± DSC-TG º ÔßÄ TaC Ó±Í «Ú Ã Í ± ºÊ Í Ä ± º 100 C Đ º Ò Ã ± TaF 5 Ý TaO 2F. µ Ý Ø 800 C ÌÊ ±È TaO 2F Ý Ta 2O 5 TaF 5. ±² Ta 2O C Ò Ü ½½ßº Ø«< 1µm ± TaC «º² ± ² Ò Đ ( 100 C) ( C) ¾ «Ú TaC; Í µ TB332 ½Ð A Formation Mechanism of TaC by Tantalum-contained Resin Precursor LI Jiang-Hong, ZHANG Hong-Bo, XIONG Xiang, XIAO Peng, ZHAO Lei, HUANG Bai-Yun (The State Key Laboratory for Powder Metallurgy, Central South University, Changsha , China) Abstract: C/C-TaC composites prepared by liquid precursors are promising in improving the ablation properties of C/C composites. The formation mechanism of TaC by tantalum-contained resin precursor was investigated through the analysis of components and morphologies of tantalum-contained resin after different heat treatment by XRD and SEM together with the DSC-TG results of tantalum-contained solution. The results show that tantalum-contained solution promotes the solidification of resin. Treated at 100 C, TaF 5 will hydrolyze into TaO 2 F and the resin will solidify. Treated at 800 C in vacuum atmosphere, part of TaO 2 F in tantalum-contained resin will decompose into Ta 2 O 5 solid and TaF 5 gas. Then, Ta 2 O 5 will be reduced and compounded by carbon into TaC with fine sizes at 1000 C. The loss of tantalum can be controlled by prolonging treatment time at lower temperatures (room temperature 100 C) and introducing anhydrous ammonia into the solution. Key words: tantalum-contained resin; TaC; formation mechanism 1 C/C Ñ ËÈ Ð³ Ù ÏÕ ¹ à ²³ Í Ò ² à ¹ÝÁËÙ²Ù ËÈ Ê Ò È (SRM) [1]. ²ÁÍ Ù Ç Ë² Æ Ù Æ SRM ²Ý È C/C Ñ ËÈ ÏÕ , Û Đ ¾ 973 ¾ Ð Ç Ð (2006CB600908) Á «Æ (1975 ), «Ð LJH138@mail.csu.edu.cn ÝÅÛÙ² ¹ C/C Ñ ËȲÏÕ ÈÆÊÐ É ² TaC ÐÙ (3880 C) Ù Ù» Õ Ú Ä² Ù Þ TaC ËȲ ÆË ²Á Ð C Ï ÖÆ Ð ² ÏÕ [2]. Ñ Â Ë

2 974 É Æ ½ 22 Å Ý C/C Ñ ËȺ TaC ZrC SiC HfC»» Ó Ù C/C Ñ ËȲ» ¹ÏÕ ÕÅÛÙ² Û ²ÝÎÓ Û Ð Æ½½ C/C Ñ ËÈ Û ² ÏÕËÈ [3]. Choury Ý [4], ³ ÕÅ 3700 C Í Ë ² ËÈ ¹»»Ó C/C Ñ ËȺ C/C Ñ ËȺ TaC Ð ½ Ë Æ½ Í Æ Ðܳ ÅÔ³ Æ Ù» TaC, ½ Ë µè IJ TaC ÐÐÒ Å º [5]. Ìƽ Ë» Æ (CVD)» Æ Î (CVR) ³ TaC à [6 8], ½³ à ² Ë Ã ËȲӻ Æ Ý Ã Ä² л Æ TaC ²Ð¼ Ò Ù ¼ ½ Ë Í ÄË TaC C/C Ñ ËȺ Ò Ò»»» ²Ô C/C Ñ ËÈ²Ô Æ Ò Í À² Ó Ë Í Ð ÉÝ ËÈ Ü ß Áº Ð ÊÄ ËȲÏÕ [9,10] ² TaC ZrC»»Ó Ò ºÅÔ C/C Ë È Ø Ó Å Î ÏÕËȲ Î Æ [11,12] Í ÄË C/C Ñ ËȺ»» Ó (ZrC HfC TaC WC), ÙË È Ï Õ ² «Ü TaC ² ³ ÝÏ ÍÐ ÆÆ ¼ É ³Åƽ¾ÄÆ ÄË Ä Ä Ò ² Å Ä ³ ² C/C-TaC ËȺ TaC ²Ò Å [13,14] È ÆÔº È Ð TaC Ý º Ó» Ta 2 O 5. ÆÔº Ä ² ٠л Íû Ð Ta 2 O 5 Ë»¹ C ¾ Ð TaC ² ³ Ù ¼ Æ Ä ³ ²Ð Û Ä ² DSC-TG ² Ö Õ Å Ä ÆÔº ȲÆÙÉ» Î ÝÅÍ Ó Ð Æ ß Ù TaC ²» ² ² 2 Ø 2.1 Ò HF Ä ÅÛ»Ý ² Ö ÂÄ Ò 40%, GB Ta Á Å Ð ß ² Æ FTa-1, 100µm.»ÝÐ ß Æ Â ² Ta Ð HF Ä ² È ºÒÐ ²Ô 80 C Û ÆÔºÈ Ta Þ Ó³ Ý Î ËÐ³È È Ë«Ð Â ß Ë Ä Æ ³ ² Ä ÍÆ ½ ÆÐ Ò Õ º ³ C ² 1400 C Ó² CVI(» Æ ) 20 C/min. 100 C Ñ 1 Âñ Ý Ð Table 1 Properties of furan resin ÓÍ ³Ý ² ˾» ³ Ä Ý C ² ÊÄ Ô» ÐÐÄ 2.3 ÅÔ º Í SDTQ600 Æ ÖÇ C Ä ³ DSC-TG Ö 20 C/min, Í Ë¾³ È Ð Ä² Á Ð Â Ó 3014 X Å Ç (XRD) Î Ë ²  ßÍà «Ä ³ ² Ó Ã«1400 CDSC-TG Ö ³ ²ÏÎÓ ³ ÓÆ Ö JSM-5600L Ø Ë Ó ³ SEM Brand Furfuralcohol modified urea-formaldebyde Free formaldebyde/wt% Solid content/wt% Nitrogen content/wt% Viscosity(25 C) η/pa s

3 5» TaC ± Ó Ð¹ 3.1 Ä Ù Õß ß Â ± Ô Á 1, Á 2. Â É ÀÞ Â 500 C ± XRD Á Á 1(a), Á 1(a) ±Ë Û Ñ«TaO 2 F, ± à ŠÀÞ SEM (Á 2(a)) Ù ÅĐ < 1µm Ú È ± Ö ĐÓÅ Ú Ä Å Å± Ñ Ta Ñ HF TaF 5 ( Ì (1)) Á Æ Ü Ã ÃĐÓÅ Â TaO 2 F(Ì (2)). Á 1(a) TaO 2 F à ٠À Ü TaO 2 F ¹Ò SEM Á 2(b) 2(c) Ú Ù Đ ÖÃ Ú TaO 2 F ¹Ò Ñ ¼ Æ TaO 2 F Å Ã ĐÅ C ± XRD Á Á 1(b). 700 C ± Ñ««TaO 2 F È Á Ta 2 O 5. SEM (Á 2(a)) Đ Þ À Ñ Ð Ta 2 O [14] 5. Ù Ö C XRD ÔÙ ± «Ta 2 O 5 TaO 2 F ýŠ900 C ± TaO 2 F É ½Ç Ta 2 O 5. [15] Ð C TaO 2 F Ô ËÝ (3) ÝÝÌ Ñ Ã 700 C ËÉ TaO 2 F Ô ±ËÌ (4) ÝÝËÑ» ±Åº Ñ ÂÔ Á Ò µô Á Å Ë Ì (3) Ô (4) Æ 700 C ѱ Æ É TaO 2 F ÜÌ Æ Å Á 1(c) 1000 C ± XRD Á ÙÇ Ta 2 O 5 Ô C Æ ¼ Þ - ¹ Ì Ã TaC Ý (5), ¼ Ì Ì (5) Ý 1109 C [13], Ѻ Æ Ta 2 O 5 ¼ Ö «Ñ Ë Ì (5) Æ Ñ Â ËÎÓ Ç Ì ¹ Ta 2 O 5. Á 1(d)1400 C ± XRD Á Ù Ta 2 O 5 É½Ç Ã TaC. SEM (Á 2(e)) Ñ Ù Đ À«¼ Ô ¼¹ÑÏ Å (Á 2(f)) Æ TaC Ú Å <1µm.  1 Ã Đ ² ± XRD  Fig. 1 XRD patterns of tantalum-contained resin after heat-treated at various temperatures

4 976 É Æ ½ 22  2 Ã Đ ² ± SEM Fig. 2 SEM morphologies of tantalum-contained resin heat-treated at various temperatures (a) Without heat-treatment; (b) 300 C; (c) 500 C; (d) 700 C; (e),(f) 1400 C 2Ta+10HF 2TaF 5 +5H 2 (G) (1) TaF 5 +2H 2 O TaO 2 F+4HF(G) (2) 2TaO 2 F+H 2 O Ta 2 O 5 +HF(G) (3) 6TaO 2 F+H 2 O 3Ta 2 O 5 +6HF(G) (4) Ta 2 O 5 (s)+7c(s) 2TaC(s)+5CO(g) (5) Ô 1400 C CVI ¼ ±ÃÑ«ÔÔ Ù Á 3(a) 3(b). Á 3(a) Ù CVI ¼Ö TaC ÅÁ 3(b) SEM Æ TaC Ë À À Ä Ô TaC (Á 2(f)) Å«±Æ ± Å ÅÉ±Æ Ñ TaF 5 ż Ð TaF 5 Â Ì Ð¹É Ì Đ Ð¹ 100 C й й± Ta Ë TaO 2 F Ñ Å Ñ 500 C TaO 2 F Æ ¹Ô 500 C ËÉ Ü TaO 2 F Ü Ta 2 O 5, 700 C ËÉ ÜÌ» Æ ± λ Ta 2 O 5 Ô C ¼Þ¹ TaC. Ã Ò Æ ¼¹ Û H 2 H 2 O CO ³ ÂÅ 1400 C Ñ¼Æ Ç Æ Æ Ô ¼Ì à TaC. 3.2 Ä Ü DSC-TG ß Ó Þ É Ò ³  C Ï Ü ± DSC-TG Ô Â DSC-TG ±Ñ Ô ±Ã XRD ÔÔ SEM Å Á 4  DSC-TG ÔÙ Å Á 4 ±Ë  3 Õ 1400 C Đ CVI º± XRD Â Õ SEM Fig. 3 XRD pattern (a) and SEM morphology (b) of CVI carbon at the same furnace with tantalumcontained resin heat-treated at 1400 C

5 5» TaC ± Ó 977  4 ñ DSC-TG ÕÚÅ Fig. 4 DSC-TG results of tantalum-contained solution from 0 to 1400 C Û Â TG ¹ ± AB BC CD DE EF 5 Ú Å Â ¾ Æ Ú ÅºÅ AB ( 240 C), ¾Æ 44.33%; Æ BC ( C), ¾ 6 %; ʱ DE ( C), ¾Æ 6.54%. Ü Ö Ù Ø Â ± Ô Â TG ¹ ÉÂ Ì ± ÔÅ B ( 240 C): Ñ Ñ ß À Ó HF Æ ± TaF 5 Ü Ì Ò (3) Ý Ì Ë HF ݳ 25.64% Á ÖÀ H 2 O ÆÅ Ñ DSC ¹ É±Æ Ø M. BC ( C): Ñ» (20 C/s), (Á 5(b)) Ô 700 C (Á 2(d)) À Ñ Ð Ç Ö¼± ÙĐ Å TaF 5 Û±ÍÜ Ì É ÙÅ É Ì Æ ±ËÜ ÉØ Ô 1400 C CVI ¼ TaC Å CTaO 2 F Ü TaF 5 Æ Æ TaF 5 Ç Æ TaO 2 F ØÒ CVI ¼É Ñ»Æ ÜÌ (2) (3) (3), λ Ta 2 O 5 Ô C Æ ¼Þ¹ Ì (5) Ú TaC. ¹± Â Ñ Æ³ ± ¹± BC DE ¾½Ö ÅBC ½ÂÂ Ü TaF 5 Æ Ë ³ ± AB ÞÙÇ Ñ TaF 5 Ê ½ ÜÅ DE ³ ± ( C) Ñ Ú TaO 2 F Ü Ta 2 O 5 Ã Õ TaO 2 F ÜÅ Ã TaF 5 ½ Ñ (229 C), Ë Á TaF 5 ½ÂÂ Ü ¹ Æ 6% ¾Ä Ü TaF 5 ÁÅ ½Â CD ( C): Ù Đ ¹ ¼ Ì Æ TaO 2 F Å DE ( C): Æ Ã 6% ¾Å [17] 500 C Ë É Ü TaO 2 F ± Ë TaF 5 ݳ Ç Å Ñ - ¾Ö Ï ± BC Æ Û Ë±Æ 800 C Ë ± TaO 2 F Æ Ã Ü ÜÌ Å 5TaO 2 F TaF 5 (G)+2Ta 2 O 5 (6) EF ( C): ÙĐ¹¼Ì Æ Å Á 5  DSC-TG ± XRD Á Ô SEM XRD Á (Á 5(a)) ÖÀ  1400 C ± ÀÑ Ta 2 O 5, Ô Â 5 à DSC-TG( C) ²± XRD  (a) Õ SEM (b) Fig. 5 XRD pattern (a) and SEM morphology (b) of tantalum-contained solution after DSC-TG test from 0 to 1400 C Ö ÔÌ (6) Ý Ñ«Åñ Ta 2 O 5

6 978 É Æ ½ 22 4 ³ TaF 5 ÂÌ Ð¹É Ì Ð¹± Ta Ë TaO 2 F Ñ Å Ñ 500 C TaO 2 F Æ ¹ Ãй Æ Ü¼¹Ì Å Ü µ Ñ Ñ ¼¹ º Æ Á Á TaO 2 F Æ Ý (3) (4) Ü Ì Å Ñ µô TaO 2 F ʽ Ü Ta 2 O 5, 800 C Ë É Ü ½ÂÂ Ü TaO 2 F Ü Ç Ta Ë TaF 5 ÆÅ 1000 C, ÜÔ Ü Ta 2 O 5 Ô C ¼ Þ ¹ TaC. Ñ Ü TaF 5 ¼ ( ¼ ¼Ô ¼) Ø Ò Æ ÜÌ Ã Ta 2 O 5, Ta 2 O 5 Ô C Î»Æ ¼Þ¹ Ì Ã TaC. ³ ¹± Ta Ë TaF 5 Ý Æű ËÜż ÉÖ Æ 1. ¹± 100 C Ë TaF 5 ٠ʽ Ü TaF 5 ʽ Ü Þ BC ¾Å 2. [19] Ð C Ú F Ô NH + 4 Ù NH 4F, Ã Õ Ë TaF 5 ³ Ô TaO 2 F Ü Ì Ta ³ Å Ã Ø ( C) Ñ Ú TaO 2 F Ü Ta 2 O 5 ù± ³ ÉÂÈ Ì Å Ñ ¼¹ ¼ à ¼Ô Æ Ì (7) à ¼ ³ Å 5 C+H 2 O(g) CO(g)+H 2 (g) (7) 1. TaF 5 ÂÌ Ð¹ É Ì Ð¹± Ta Ë TaO 2 F Ñ Å 2. µô TaO 2 F Ç Ü Ta 2 O 5, Ç Ü TaF 5 Ta 2 O 5. Ñ ¼¹ Ta 2 O 5 Ô C ¼Þ¹ TaC. Æ TaF 5 ¼ØÒ Æ ÜÂÔ C ¼Þ¹ Ì Ú TaC. 3. ± Ñ ( 100 C) ( C) ½¹± Ñ ³ Å Ó ¼ [1] Paulmier T, Balat-Pichelin M, Quéau D. Le. Applied Surface Science, 2005, 243: [2] Kim C, Gottstein G, Grummon D S. Acta Metallurgica et Materialia, 1994, 42 (7): [3] Ï Đ Ç 2001, 24 (1): [4] Choury J J. AIAA paper, [5] Û Ç Ð ÊǾ± 2003, 20 (3): [6] Tsutsumoto T. Thin Solid Films, 1998, 317: [7] Rubinshtein A, Shneck R, Danon A, et al. Materials Science and Engineering, 2001, A302 (1): [8] Teghil R, D Alessio L, Maria G D, et al. Applied Surface Science, 1995, 86: [9] Û µ ³ÜÀ ¾¾± 2000, 18 (4): [10] Û µ Đ Ç 2001, 24 (3): [11] Í Å Ï Ø ÊÇÜÎ 2001, 3 (6): [12] Í Å Û µ ¾ÊÇ 2005, 20 (2): [13] µ (YAN Zhi-Qiao, et al). ÊǾ± (Journal of Inorganic Materials), 2005, 20 (5): [14] µ ¹ ÁĐ«¾± 2005, 15 (10): [15] Ì Ï Í µ ÁĐ«1998, (2): [16] T H A.B.E, kop yhob B. µ µ Ö Ã ¹ ÜÀ ¾Ü [17] º µ (XIANG Hua, et al). ÊǾ± (Journal of Inorganic Materials), 2006, 21 (4): [18] Frevel L K, Rinn H W. Acta Cryst., 1956, 9: [19] Gibson J, Gibson M G. Production of carbon fibertantalum carbide composites. US

» LiNi 0.5 x Co 2x Mn 0.5 x O 2 Æ º

» LiNi 0.5 x Co 2x Mn 0.5 x O 2 Æ º «22 «5 Æ Ç Vol. 22, No. 5 2007 À 9 ³ Journal of Inorganic Materials Sep., 2007 Ç : 1000-324X(2007)05-0873-06» LiNi 0.5 x Co 2x Mn 0.5 x O 2 Æ º ÔÒ Ó Ð Ó Ñ ( Ï 410083) Æ Ã Ç ÊÉ É Ni 0.5 xco 2xMn 0.5 xco

More information

Crystallization Behaviour of the Si-Al-Zr-O Amorphous Bulk

Crystallization Behaviour of the Si-Al-Zr-O Amorphous Bulk Æ 22 À Æ 6 ² Vol. 22, No. 6 2007 11 Journal of Inorganic Materials Nov., 2007 Õ Â: 1000-324X(2007)06-1233-06 Si-Al-Zr-O Ù ÇÀ ( Æ 410083) ½ DSC XRD SEM Ò TEM Æ ³Õ Si-Al-Zr-O(SAZ) Ê«Ï Ì SAZ 900 C ÁÒ Û Ç

More information

ELECTROLESS PLATING Cu ON Mo POWDER AND ITS REACTION MECHANISM

ELECTROLESS PLATING Cu ON Mo POWDER AND ITS REACTION MECHANISM 45 «4 Vol.45 No.4 2009 4 405 409 ACTA METALLURGICA SINICA Apr. 2009 pp.405 409 Mo ³ß Cu Đ Æ 1) ÊÉ Þº²¾ º Ò¾ µ, 410083 2) ÊÉ ²¾ º, 410083» ³³ Sn Pd Å Mo Ô Cu ÎƼ Cu/Mo, ³³ XRD, SEM, EDS XPS Ú ÎÞ ¼. ³³ XPS

More information

ÅÔ½ß (electrochemical noise EN)

ÅÔ½ß (electrochemical noise EN) 29 6 Ë «ÁÖ Vol.29 No.6 29  12 Journal of Chinese Society for Corrosion and Protection Dec. 29 1 Ù ½ ßÝ «ĐÖ Ü Áà 1 À 1,2 ÂÄ 1 (1. Ê ÈÕÏ Õ 122; 2. ß Ï³ ¾ß 3452) : ¼ Î ÆÕ¾ ²º Ü ÆÅ Ó (CPT) ÆÞ Ü ²» ASTM Õ

More information

¾Å ÒÅ º Sm 0.15 Gd 0.05 Ce 0.8 O 1.9

¾Å ÒÅ º Sm 0.15 Gd 0.05 Ce 0.8 O 1.9 22 6 «Vol. 22, No. 6 2007 11 Journal of Inorganic Materials Nov., 2007 : 1000-324X(2007)06-1041-05 ¾Å ÒÅ º Sm 0.15 Gd 0.05 Ce 0.8 O 1.9 Å Õ» ¹ ¼¾ ½ º (µ ± ³ ² 310027)  (EDTA)- µâá» - À»«ÈÙ ¼ØÏ Sm 0.15Gd

More information

Effect of Combined Additives of CaF 2 -Y 2 O 3 on Microstructrue and Thermal Conductivity of AlN-BN Composite Ceramics

Effect of Combined Additives of CaF 2 -Y 2 O 3 on Microstructrue and Thermal Conductivity of AlN-BN Composite Ceramics 23  3 µ ¾ Û Vol. 23, No. 3 2008 5 À Journal of Inorganic Materials May, 2008 Ê Æ : 1000-324X(2008)03-0496-05 ¹ ¼ CaF 2 -Y 2 O 3 AlN-BN ¹Ã ÍÇ Đ (ÞÕÙÓÐ ÚÒÖß ÝÔØ ÑÛÐÜ ÞÕ 430070) ¼ Ø AlN-BN ¼ ¾Û CaF 2 Y 2O

More information

Effect of ZrO 2 on Crystallization and Phase Transformation in Lowtemperature Processed BaO-Al 2 O 3 -SiO 2 Glass-ceramics

Effect of ZrO 2 on Crystallization and Phase Transformation in Lowtemperature Processed BaO-Al 2 O 3 -SiO 2 Glass-ceramics 23 1 Á È Vol. 23, No. 1 2008 1 Journal of Inorganic Materials Jan., 2008 Ë : 1000-324X(2008)01-0159-06 ZrO 2 ÐÝ ² BaO-Al 2 O 3 -SiO 2 Ð Å ÛÈ Öß ÝÒ ÛÓÞ ÐÙÕ ÚÔÐ Ü Ñ Ø ( 410073) Ê Å Ä È¼ º Ba BaO-Al 2O 3-SiO

More information

ÃÞ Al-Zn(7%)-Sn(0.1%)-Ga(0.015%) NaCl ι 2% CrO 3 +5% H 3 PO 4

ÃÞ Al-Zn(7%)-Sn(0.1%)-Ga(0.015%) NaCl ι 2% CrO 3 +5% H 3 PO 4 Ñ 32 ± Ñ 5 Vol.32 No.5 2012 Þ 10 Ø Journal of Chinese Society for Corrosion and Protection Oct. 2012 Al-Zn-Sn-Ga ÒÃ É Ì À ÂÎ ĐÐÛ Ú Þ Ý ß ĐÜ ÊÔºØ Äº Õ 71003 Õ Ó : º SEM Al-Zn-Sn-Ga È Û Æ Ð «ÈØ ÅÐÜÛ ºÅ Ñ

More information

Ce(NO 3 ) g/l KMnO g/l HF 2 ph ÓÞ

Ce(NO 3 ) g/l KMnO g/l HF 2 ph ÓÞ Û Û 1 Ƴ Vol. No.1 01 Õ Journal of Chinese Society for Corrosion and Protection Feb. 01 É Â Ce-Mn ß Ï ÕÝ HF Ç ÐÖ ÈÐÄ Đ ( ß ½Ì Ç Ò À 510641) Ù Ó : Ã Ü EPMA«X»» XRD«ÅÆ EDS«X» Å XPS«Ce-Mn ÖÖ ¾ Ð ÐÐÍ ¹ à ÐÀ

More information

ELECTRONIC STRUCTURE OF DIFFERENT REGIONS AND ANALYSIS OF STRESS CORROSION MECHANISM OF Al Zn Mg Cu ALLOYS

ELECTRONIC STRUCTURE OF DIFFERENT REGIONS AND ANALYSIS OF STRESS CORROSION MECHANISM OF Al Zn Mg Cu ALLOYS Ý 45 Ë Ý 6 Vol.45 No.6 2009 6 Ý 687 691 µ ACTA METALLURGICA SINICA Jun. 2009 pp.687 691 Al Zn Mg Cu Í ÅÛ¹ Ö¾ÜÄ ÔÌ Ê ß ÝÞ ÐĐ (Ý É, Ý 110034) Ø Ó Ð Ò Al Zn Mg Cu (7175 ) α Al, η Û α Al Ã,» ßà Zn, Mg, Cu

More information

FRICTION AND WEAR PROPERTIES OF Ni FREE Zr BASED BULK METALLIC GLASSES IN SIMULATED BODY FLUID

FRICTION AND WEAR PROPERTIES OF Ni FREE Zr BASED BULK METALLIC GLASSES IN SIMULATED BODY FLUID 46 6 Vol.46 No.6 2010 µ 6 Ì 681 686 ACTA METALLURGICA SINICA Jun. 2010 pp.681 686 Ni Ó Ì¹ Æ ÄÌг Á É Ã ÕÔØ Ù Ú Ö ( ÐÅ ½ÕÀ  ū, Ì 430074) Í /Cu Å Ý Æ Å 70 mm 12 mm 1.5 mm Ð Æ Ni Zr 60Cu 19Fe 5Al 10Ti 6

More information

Journal of Inorganic. Materials ² Û: X(2006) Journal of Inorganic Materials Jul., 2006

Journal of Inorganic. Materials ² Û: X(2006) Journal of Inorganic Materials Jul., 2006 Ó 21 ¼ Ó 4 Ð ¼ Î Ì Vol. 21, No. 4 2006 7 Jul., 2006 ² Û: 1000-324X(2006)04-0986-07 X ¾ Ü Ø» ÊÈ ÍÇ ÏËÉ Ì Î ( ÂÀ à ÁÅÄ ÃÆ Â 650093) Å X ÆÔ ± ÌÕ Æ ¹ Î ß É ± Ö Ý Àµ ÕËß É XRD Ð Ý «Çß É ÅÝ ¾ º d 002 ÒÌÝ L c

More information

SiC Ð Æ

SiC Ð Æ 1» Vol. No.1 1 Ï Ã Journal of Chinese Society for Corrosion and Protection Feb. 1 - P91 P9 Ç Ì Ä»Å± Æ È Å : 1 ¾Á 1 1 1 1 Î Ï 1 (1. º Òº Æ Á Ý º Ó 611;. ÆÈ Á ) X XRD«- ÞÍ SEM-EDX«P91 P9 Ç 5 /5 MPa 55 /5

More information

(1) J = DC. Vol.31 No Journal of Chinese Society for Corrosion and Protection Jun Æ ¼ : TG457 Ó«Ç : A ¼ :

(1) J = DC. Vol.31 No Journal of Chinese Society for Corrosion and Protection Jun Æ ¼ : TG457 Ó«Ç : A ¼ : 31 3 ¾ Ðß Vol.31 No.3 2011 6 Journal of Chinese Society for Corrosion and Protection Jun. 2011 ÐÂÐ ² λ (ƽÀ«ÔÞß ÆÀÍÞ Æ½ 210009 Ø «Þ : µ¹í Ë»Ó¹Í ¹ Á Ý Ç µ¹í ¹ ³»ÝÄĐ¼Ëà ¹ ÎÝ ÏÂۻݼËà м ¹ Î ÝĐ½³ ² µ ½ ÅÀ

More information

Nirosta 4003 T4003 Ö. Vol.32 No Ö 4 Journal of Chinese Society for Corrosion and Protection Apr. 2012

Nirosta 4003 T4003 Ö. Vol.32 No Ö 4 Journal of Chinese Society for Corrosion and Protection Apr. 2012 32 2 Ö È Vol.32 No.2 2012 Ö 4 Journal of Chinese Society for Corrosion and Protection Apr. 2012 «ßÐÄÆ Ô Þ ÔÚ Õ È µ 1 ¹ ² 1 1 1 ³ 1 ± 2 1. Đ Đ Ù ÓÅ Ç Ë Đ 116028 2. Đ Đ Đ 116028 : ER-309 ÐßÐ T4003 Q450NQR1

More information

ITC factory, Bangalore. Using non imaging concentrator for boiler feed water preheating

ITC factory, Bangalore. Using non imaging concentrator for boiler feed water preheating ITC factory, Bangalore Using non imaging concentrator for boiler feed water preheating ITC was incorporated on 24 August, 1910 as the Imperial Tobacco Company of India Limited. As the company s ownership

More information

AlCrTaTiNi/(AlCrTaTiNi)N ÖÞ

AlCrTaTiNi/(AlCrTaTiNi)N ÖÞ Ü 49 Ü 12 Vol.49 No.12 2013 Ý 12 Ü 1611 1616 ACTA METALLURGICA SINICA Dec. 2013 pp.1611 1616 AlCrTaTiNi/(AlCrTaTiNi)N ÖÞ ÏÒÜ (ÒÉ È Á¾ÈÙ Ì Ü«ÑÙ ÞÌ, 610064) «Æ Ô, º Ç (AlCrTaTiNi)N  AlCrTaTiNi/(AlCrTaTiNi)N

More information

An Analysis of Desulfurization and Regeneration Reaction Rates of Zinc Titanate Sorbent

An Analysis of Desulfurization and Regeneration Reaction Rates of Zinc Titanate Sorbent HWAHAK KONGHAK Vol. 39, No. 2, April, 2001, pp. 251-256 (Journal of the Korean Institute of Chemical Engineers) Zinc Titanate ** * (2000 7 13, 2001 1 9 ) An Analysis of Desulfurization and Regeneration

More information

0.18«S 0.034«P 0.035, Si 0.3, Mn0.55, Ô Fe. Vol.30 No ½ 8 Þ Journal of Chinese Society for Corrosion and Protection Aug.

0.18«S 0.034«P 0.035, Si 0.3, Mn0.55, Ô Fe. Vol.30 No ½ 8 Þ Journal of Chinese Society for Corrosion and Protection Aug. 30 Þ 4 ± Ü À Vol.30 No.4 2010 ½ 8 Þ Journal of Chinese Society for Corrosion and Protection Aug. 2010 ÎÁ ÄÐ 1 mol/l Ú Ó Á ÃÏ ÛË Å 1,2 2 1 3 2 (1. ËÄ Ü Ê 266100 2. Ü ËÆÙ Ï ÊÓ Ê 266071 1 Ü 3. Ä Ö Ü 400044)

More information

Vol.30 No Í 4 Journal of Chinese Society for Corrosion and Protection Apr ĐÅ : TG174 Ú : A ²Ù : «

Vol.30 No Í 4 Journal of Chinese Society for Corrosion and Protection Apr ĐÅ : TG174 Ú : A ²Ù : « Ð 0 Ð Vol.0 No. 010 Í Journal of Chinese Society for Corrosion and Protection Apr. 010 1 Æ Re NiCrAlY Ü Þ» ¼ ¾¾ ¹ º ( Õ «Õ«¾ 110016) ± :»Ó ÒÛ NiCrAlYRe NiCrAlY Â ÝÄ ÙÅ Â γ -Ni Al γ-ni β- NiAl α-cr Ñ NiCrAlYRe

More information

Vol.30 No Journal of Chinese Society for Corrosion and Protection Apr. 2010

Vol.30 No Journal of Chinese Society for Corrosion and Protection Apr. 2010 30 2 ¼Ê ÓÀ Vol.30 No.2 2010 4 Journal of Chinese Society for Corrosion and Protection Apr. 2010 Mg 2 Si Ò Si Þ Al-Mg-Si ØÙÓ ÐÝ ÑÐ ÆÚ 1 1,2 BIRBILIS Nick 3 ± 1 ²³ 1,2 (1. ¾ ÁÈ 410083; 2. Ð ² ¾ ÁÈ» ÍÌ 410083;

More information

8-9% n. a. n. a. n. a n. a. n. a. n. a n. a. n. a. n. a. n. a.

8-9% n. a. n. a. n. a n. a. n. a. n. a n. a. n. a. n. a. n. a. 1979 2006 GDP 9.72006 1978 2004 2007 9 1.43 GDP GDP 2002 4.4 5.5 2003 2005 GDP 13.8 29.8 1 1. 1 "!#$%&')(*+",-/.1023465780 2007 9 9 : 13 ;=@? 9 3!6#A)B6C"DEGFH@?.10JI)K6780 2007 9 10 : 11 ;=< 1 1983

More information

EFFECT OF Ti AND Nb MICRO ALLOYING ON THE MICROSTRUCTURE OF THE ULTRA PURIFIED 11%Cr FERRITE STAINLESS STEELS

EFFECT OF Ti AND Nb MICRO ALLOYING ON THE MICROSTRUCTURE OF THE ULTRA PURIFIED 11%Cr FERRITE STAINLESS STEELS Ü 47 Î Ü 6 Vol.47 No.6 2011 6 Đ Ü 688 696 Á ACTA METALLURGICA SINICA Jun. 2011 pp.688 696 Ti Ü Nb Þ 11%Cr µô ¹³ (ºÉ ¾Þ Ä, 110016) ¾ Å ¾Æ Ì Øº Ti Nb ÚÆ Ç 11%Cr ǺÀ ¼ Æ (HAZ) ÔƱ Å Û. Å Ë :» غ 0.0163% Ti

More information

CRT-541 Card Dispenser Machine

CRT-541 Card Dispenser Machine CRT-541 Machine Ver 1.0 PRODUCT SPECIFICATION CREATOR (CHINA) TECH CO., LTD. 2F, M-10 Building, Center Area, Hi-tech Industrial Park, Shenzhen Guangdong China TEL:+86 755 26710691 FAX:+86 755 26710105

More information

Ñ ³ PtRu/MWCNTs Þ PtRuNi/MWCNTs

Ñ ³ PtRu/MWCNTs Þ PtRuNi/MWCNTs 49 ¾ 6 Å Vol.49 No.6 2013 Ð 6 699 706 Ò ACTA METALLURGICA SINICA Jun. 2013 pp.699 706 Ñ ³ /MWCNTs Þ Ni/MWCNTs Đ ² Ñ Æ» ¹½ ( Í ³ ÍŹ Í, 266100) (Æ Á Í ÍÍ, Æ 100875) Ó Î ± / Ø (/MWCNTs) Ç / Ø (Ni/ MWCNTs)

More information

Rainfed lowland rice variety improvement in the wet season in the Lao PDR

Rainfed lowland rice variety improvement in the wet season in the Lao PDR Rainfed lowland rice variety improvement in the wet season 2001 in the Lao PDR Sengpaseuth Rasabandith National Agricultural Research Center, P.O. Box 811, Vientiane, Lao PDR. E-mail: sengpase@laotel.com

More information

HYDROGEN INDUCED DELAYED FRACTURE BEHAV- IOR OF A LOW CARBON Mn B TYPE ULTRA HIGH STRENGTH STEEL SHEET AFTER HOT STAMPING

HYDROGEN INDUCED DELAYED FRACTURE BEHAV- IOR OF A LOW CARBON Mn B TYPE ULTRA HIGH STRENGTH STEEL SHEET AFTER HOT STAMPING 49 Ê 10 Vol.49 No.10 2013 10 Ú 1153 1159 ACTA METALLURGICA SINICA Ot. 2013 pp.1153 1159 Æ «ÊÝ Mn B Ä ØË ÚÅ É Ù ÆÌÑ Đ ( ÂµÂ Þ Âº Æ Ï µâ, 100081) ½ ÒÜ ¹Æ ÏÑ²Ó (TDS) Ð, à Mn B Ø È Ñ Å Ñ Ì ÝÏ ¹Æ. ¹, Ñ, ¾ÍØ

More information

CH 3 COOHÆCH 3 COONH 4 ¾ CH 3 COONa«¾É

CH 3 COOHÆCH 3 COONH 4 ¾ CH 3 COONa«¾É 32 1 Ê Å«¾Đ Ð Vol.32 No.1 2012 Å 2 Journal of Chinese Society for Corrosion and Protection Feb. 2012 ÞÛ ¾Ö CeO 2 Õ 1,2 2 2 3 2 2,4 (1. Ž ÉÒ 524000 2. Ê ¼ 310027 3. µ ½ µ 256603 4. ɵ Ô Ô Å½ µï Æ 110016

More information

Multi-rate Hidden Markov Models and their Application to Acoustic Modeling for Speech Recognition

Multi-rate Hidden Markov Models and their Application to Acoustic Modeling for Speech Recognition li i ko ol i liio o oi oli o oiio Öü Çi o lil ii ii o io oio il oi ok i i o iil oiio oi o lil oio o oiol i l o o ol i l oi oiio il oiio li i ko ol ol lio o iil lii iiii iil iio li o ioiiio loi i l o i

More information

Hygienic design. Hygienic antislip gratings. All internal radii equal or larger than 3mm which greatly increases cleaning effectiveness

Hygienic design. Hygienic antislip gratings. All internal radii equal or larger than 3mm which greatly increases cleaning effectiveness ݱ²»² ² ±¼«½ ±² ßÝÑ ¹»² ½ ¹«ïìî ßÝÑ ¹»² ½ ¹«ïëé ßÝÑ ¹»² ½ ¹«îïè ÛÙïëð Ù ²¹ß½½» ±» Ð ¹» Ø ¹»² ½ ¼» ¹² ïè Í»³ ±ª» ª» ïç Ú»¼» ¹ ª» ½ ± îð Ú»¼» ¹ ± ±² ± îî Ì»» ½± ½ ª» ½ ± îì Ì»» ½± ½ ± ±² ± îé Ù«±»» ½± ½

More information

SKF Technologies, Mysore. Using parabolic trough for phosphating process

SKF Technologies, Mysore. Using parabolic trough for phosphating process SKF Technologies, Mysore Using parabolic trough for phosphating process SKF Technologies Pvt Ltd is a wholly owned subsidiary of SKF AB in India. The Swedish parent company has been one of the leading

More information

Pheng Sengxua 1 and Bruce Linquist 2. Abstract

Pheng Sengxua 1 and Bruce Linquist 2. Abstract The effect of long-term application of the basally applied compound fertilizers 16-20-0 and 15-15-15 on lowland irrigated rice productivity in the Lao PDR Pheng Sengxua 1 and Bruce Linquist 2 1 Soil Survey

More information

Two-machine Open-shop Scheduling With Outsourcing

Two-machine Open-shop Scheduling With Outsourcing 43 6 Æ Vol.43, No.6 2014 11 ADVANCES IN MATHEMATICSCHINA) Nov., 2014 doi: 10.11845/sxjz.2013008b Two-machine Open-shop Scheduling With Outsourcing CHEN Rongjun 1,, TANG Guochun 2 1. Department of Mathematics,

More information

Proper Storage. Stacking. Temperature. Humidity

Proper Storage. Stacking. Temperature. Humidity Preparation for Printing Preparation for Printing Proper Storage Once the paper or specialty media product has been selected, it has to be stored, handled, conditioned, and loaded properly in order to

More information

CaO-Gd 2 O 3 -Al 2 O 3 PDP Eu 3+ Tb 3+

CaO-Gd 2 O 3 -Al 2 O 3 PDP Eu 3+ Tb 3+ Journal of the Korean Chemical Society Printed in the Republic of Korea CaO-Gd 2 O 3 -Al 2 O 3 PDP Eu Tb * (2002. 4. 15 ) Screening of Eu - and Tb -Activated Phosphors for PDP in the System of CaO-Gd 2

More information

The effect of different straw managements on the potassium. fertilizer supply of lowland rice

The effect of different straw managements on the potassium. fertilizer supply of lowland rice The effect of different straw managements on the potassium fertilizer supply of lowland rice Pheng Sengxua 1 and Bruce Linquist 2 1 Soil Survey and Land Classification Center, NAFRI. P.O.Box 811, Vientiane

More information

{ç³ -.

{ç³  -. (DCM 01(NR)) ASSIGNMENT - 1, DEC - 2018. Paper I : PERSPECTIVES OF MANAGEMENT 1) a)management Profession. ÆæÿÓçßý ý- Ð@þ. b) Management by exception. Ñ$ @þà-æÿ ç³# ø ÆæÿÓ-çßý- ý. c) Decentralisation. ÑMóü

More information

International Energy Workshop June 24-26, 2003, IIASA, Austria

International Energy Workshop June 24-26, 2003, IIASA, Austria International Energy Workshop June 24-26, 2003, IIASA, Austria Hydrogen Economy: Opportunities and Challenges Phillip Tseng*, John Lee**, Paul Friley** PhillipTseng@HQDOEGOV * US Department of Energy **

More information

Storm Water Pollution Prevention Plan (SWPPP) Billerica Wastewater Treatment Facility. woodardcurran.com COMMITMENT & INTEGRITY DRIVE RESULTS

Storm Water Pollution Prevention Plan (SWPPP) Billerica Wastewater Treatment Facility. woodardcurran.com COMMITMENT & INTEGRITY DRIVE RESULTS Storm Water Pollution Prevention Plan (SWPPP) Billerica Wastewater Treatment Facility woodardcurran.com COMMITMENT & INTEGRITY DRIVE RESULTS 212807.08 Town of Billerica Department of Public Works September

More information

ßÜÐ Ú» Ü»½ Ð ½ ² Ê» Ë» Ù«¼» λ» -» çòðë

ßÜÐ Ú» Ü»½ Ð ½ ² Ê» Ë» Ù«¼» λ» -» çòðë ßÜÐ Ú» Ü»½ Ð ½ ² Ê» Ë» Ù«¼» λ»» çòðë ADP Copyright Information Copyright 1993 2010 by ADP, Inc. This manual supports ADP FlexDirect Client View Version 9.05. Published November 2010. All rights reserved.

More information

Thread Turning Technical Section

Thread Turning Technical Section Thread Turning Technical Section Contents: Page: Contents: Page: Carbide Grade Selection Type B inserts Recommended Cutting Speed Conversion of Cutting Speed to Rotational Speed Number of Threading Passes

More information

By *T.Khalil, **J. Bossert,***A.H.Ashor and *F. Abou EL-Nour

By *T.Khalil, **J. Bossert,***A.H.Ashor and *F. Abou EL-Nour WM 11 EG0100132 Seventh Conference of Nuclear Sciences & Applications 6-10 February 2000. Cairo, Egypt Preparation, Characterization and application of Alumina powder Produced by advanced Preparation Techniques

More information

A Study on the Effect of Cooperative Computer-Assisted Instruction by Previous Achievement Level

A Study on the Effect of Cooperative Computer-Assisted Instruction by Previous Achievement Level Journal of the Korean Chemical Society Printed in the Republic of Korea * (2002. 1. 25 ) A Study on the Effect of Cooperative Computer-Assisted Instruction by Previous Achievement Level Taehee Noh*, Jeongho

More information

Separation and recovery of Ni, Co and Mn from spent lithium-ion batteries

Separation and recovery of Ni, Co and Mn from spent lithium-ion batteries 21 5 2011 5 Vol.21 No.5 The Chinese Journal of Nonferrous Metals May 2011 1004-0609(2011)05-1192-07 1, 1, 2, 1, 1, 1 (1., 410083 2., 410083) H 2 SO 4 +H 2 O 2 N902 10:1 H 2 SO 4 2.5 mol/l H 2 O 2 2.0 ml/g(

More information

PREPARATION OF SiC ABSORBENT BY PYROLYZING POLYCARBOSILANE MIXED WITH NANO-Co (Ni) POWDER

PREPARATION OF SiC ABSORBENT BY PYROLYZING POLYCARBOSILANE MIXED WITH NANO-Co (Ni) POWDER PREPARATION OF SiC ABSORBENT BY PYROLYZING POLYCARBOSILANE MIXED WITH NANO-Co (Ni) POWDER Cheng Haifeng, Chen Zhaohui, Li Yongqing, and Zhang Changrui Department of Material Engineering and Applied Chemistry,

More information

Microstructure and superelasticity of porous NiTi alloy *

Microstructure and superelasticity of porous NiTi alloy * No. 1 MICROSTRUCTURE & SUPERELASTICITY OF POROUS NiTi ALLOY Vol. 42 Microstructure and superelasticity of porous NiTi alloy * LI Bingyun, RONG Lijian and LI Yiyi (Laboratory of Atomic Imaging of Solids,

More information

ASTM E84-09 SURFACE BURNING CHARACTERISTICS OF BUILDING MATERIALS

ASTM E84-09 SURFACE BURNING CHARACTERISTICS OF BUILDING MATERIALS Page 1 of 9 ASTM E84-09 SURFACE BURNING CHARACTERISTICS OF BUILDING MATERIALS WPMC 200 CERAMIC COATING Report No. 3194754SAT-001 December 15, 2009 Prepared For: Wallpanel Inc. 6723 Corsair Ave PRESCOTT,AZ,86301,US

More information

Effect of Al5Ti1B master alloy on microstructures and properties of AZ61 alloys

Effect of Al5Ti1B master alloy on microstructures and properties of AZ61 alloys Effect of Al5Ti1B master alloy on microstructures and properties of AZ61 alloys MA Xu-liang( ) 1, 2, WANG Xiang( ) 2, LI Xin-lin( ) 2, YANG Lei( ) 2 1. School of Materials Science and Engineering, Harbin

More information

Sampling of groundwater using the BAT Sampler

Sampling of groundwater using the BAT Sampler Sampling of groundwater using the BAT Sampler -system description -preparations -sampling of groundwater -BAT Sampling Kit BAT Geosystems AB Box 1060 SE-186 26 Vallentuna Sweden Phone +46 851170600 Fax

More information

Pore Characteristics of Anthracite-based Activated Carbon According to Granulation Process

Pore Characteristics of Anthracite-based Activated Carbon According to Granulation Process HWAHAK KONGHAK Vol. 40, No. 1, February, 2002, pp. 128-132 (Journal of the Korean Institute of Chemical Engineers) *** * (2001 9 6, 2001 10 25 ) Pore Characteristics of Anthracite-based Activated Carbon

More information

Coulter Transportation Consulting, LLC 1524 Paula Avenue Wheaton, IL Ph:

Coulter Transportation Consulting, LLC 1524 Paula Avenue Wheaton, IL Ph: MEMO To: Tri-Cities Impact Fee Review Group From: Brent Coulter, PE, PTOE Date: November 8, 2006 Subject: General Review of the Preliminary Kane County CRIP Kane County requested in recent (late October

More information

Nanostructural Features of nc-si : H Thin Films Prepared by PECVD

Nanostructural Features of nc-si : H Thin Films Prepared by PECVD Korean J. Crystallography Vol. 14, No. 2, pp.56~61, 2003 PECVD nc-si : H 1 2 1 * 1, 2 Nanostructural Features of nc-si : H Thin Films Prepared by PECVD J.-H. Shim 1, S.-J. Chung 2 and N.-H. Cho 1 1 Dept.

More information

Panalee Chevakidagarn

Panalee Chevakidagarn ORIGINAL ARTICLE Surrogate parameters for rapid monitoring of contaminant removal for activated sludge treatment plants for para rubber and seafood industries in Southern Thailand Panalee Chevakidagarn

More information

º µ µ Œ Õß Àπ ß Õæ æå Enterococcus faecium SU-1

º µ µ Œ Õß Àπ ß Õæ æå Enterococcus faecium SU-1 ««æ π. ªï Ë 29 Ë 3 Æ - π π 2549 301 º µ µ Œ Õß Àπ ß Õæ æå Enterococcus faecium SU-1 ««π å ÿ 1 ÿ µπå æÿ µ Á 2 À ª «µæ «ß π π å π ª 73000 «ß Õß 3 π π æ Õ â æ π Àπ Õ ÿß æœ 10800 ÿ Æ Õÿµ æ 4 À «π æ Õ â π ÿ

More information

FABRICATION AND MICROSTRUCTURE OF C/C-ZRC-SIC AND C/C-HFC-ZRC-SIC COMPOSITES

FABRICATION AND MICROSTRUCTURE OF C/C-ZRC-SIC AND C/C-HFC-ZRC-SIC COMPOSITES 21 st International Conference on Composite Materials Xi an, 20-25 th August 2017 FABRICATION AND MICROSTRUCTURE OF C/C-ZRC-SIC AND C/C-HFC-ZRC-SIC COMPOSITES Lin Xu 1,2*, Wei Li 1, Xinchao Li 1, Jia Cheng

More information

1) a) Concept of management. b) Organisation. c) Policy. d) Formal authority. e) Board of directors. 2) State the nature of management.

1) a) Concept of management. b) Organisation. c) Policy. d) Formal authority. e) Board of directors. 2) State the nature of management. ASSIGNMENT - 1, MAY - 2015. Paper I : PERSPECTIVES OF MANAGEMENT (DCM 01(NR)) 1) a) Concept of management ÆæÿÓçßý ý êð@þ @þ b) Organisation Ð@þÓÐ@þçÜ c) Policy Ñ«é @þð@þ d) Formal authority Ìê ^èþ @þ {

More information

M.Com. (Previous) DEGREE EXAMINATION, DEC First Year Paper I - PERSPECTIVES OF MANAGEMENT. Answer any FIVE of the following.

M.Com. (Previous) DEGREE EXAMINATION, DEC First Year Paper I - PERSPECTIVES OF MANAGEMENT. Answer any FIVE of the following. (DCM 01) M.Com. (Previous) DEGREE EXAMINATION, DEC - 2013 First Year Paper I - PERSPECTIVES OF MANAGEMENT Time : Three hours Maximum : 80 marks SECTION - A (5x4=20) Answer any FIVE of the following. 1)

More information

M.Com. (Previous) DEGREE EXAMINATION, MAY (First Year) Paper I - PERSPECTIVES OF MANAGEMENT Time : 3 Hours Maximum Marks : 80

M.Com. (Previous) DEGREE EXAMINATION, MAY (First Year) Paper I - PERSPECTIVES OF MANAGEMENT Time : 3 Hours Maximum Marks : 80 (DCM 01) M.Com. (Previous) DEGREE EXAMINATION, MAY - 2014 (First Year) Paper I - PERSPECTIVES OF MANAGEMENT Time : 3 Hours Maximum Marks : 80 1) a) Concept of management ÆæÿÓçßý ý êð@þ @þ b) Organisation

More information

DATA EVALUATION OF IN SITU CHEMICAL TREATMENT FOR GROUNDWATER REMEDIATION AT LEAKING UNDERGROUND STORAGE TANK SITES IN LOS ANGELES AREA, CALIFORNIA

DATA EVALUATION OF IN SITU CHEMICAL TREATMENT FOR GROUNDWATER REMEDIATION AT LEAKING UNDERGROUND STORAGE TANK SITES IN LOS ANGELES AREA, CALIFORNIA DATA EVALUATION OF IN SITU CHEMICAL TREATMENT FOR GROUNDWATER REMEDIATION AT LEAKING UNDERGROUND STORAGE TANK SITES IN LOS ANGELES AREA, CALIFORNIA (November 24, 2008) Weixing Tong 1 and Yue Rong 2 Abstract

More information

SOMETHING IS ROTTEN IN DENMARK

SOMETHING IS ROTTEN IN DENMARK SOMETHING IS ROTTEN IN DENMARK Analysis of the Social Network of Authors in Four Recent Articles on Autism, Mercury and Selected Childhood Vaccine Exposures and Assessment of the Role, Influence and Interests

More information

Õß ßß π Ÿ ΩÕ. Solid Waste Disposal Division

Õß ßß π Ÿ ΩÕ. Solid Waste Disposal Division Õß ßß π Ÿ ΩÕ Solid Waste Disposal Division Õß ßß π Ÿ ΩÕ Àπâ Ë º Õ Ë ««ÿ Ÿ Ÿ ΩÕ Àâ ªìπ ªÕ à ß ª æ ÿââ à Ÿ ÿ µ À «ÆÀ âõ ß µà ßÊ Ë Ë «âõß «Èßæ π πß π â π«ë Ë ««Õ Ëß «âõ 1) ß π ÿ Àπâ Ë º Õ Ë «ß π ÿ Ë«ª ß π

More information

APPLICATION OF COMPLEX ENERGY SIMULATION IN COMPETITION DESIGN OF CZECH EMBASSY IN OTTAWA

APPLICATION OF COMPLEX ENERGY SIMULATION IN COMPETITION DESIGN OF CZECH EMBASSY IN OTTAWA APPLICATION OF COMPLEX ENERGY SIMULATION IN COMPETITION DESIGN OF CZECH EMBASSY IN OTTAWA Karel Kabele, Magda Kadlecová, Tomáš Matoušovic, Lada Centnerová Czech Technical University in Prague Faculty of

More information

Introduction to Dislocation Mechanics

Introduction to Dislocation Mechanics Introduction to Dislocation Mechanics What is Dislocation Mechanics? (as meant here) The study of the stress state and deformation of continua whose elastic response is mediated by the nucleation, presence,

More information

Effects of surrounding powder in sintering process on the properties of Sb and Mn- doped barium-strontium titanate PTCR ceramics

Effects of surrounding powder in sintering process on the properties of Sb and Mn- doped barium-strontium titanate PTCR ceramics ORIGINAL ARTICLE on the properties of Sb and Mn- doped barium-strontium titanate PTCR ceramics Pornsuda Bomlai 1 Abstract on the properties of Sb and Mn- doped barium-strontium titanate PTCR ceramics Songklanakarin

More information

STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION

STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION Alena MICHALCOVÁ a,b, Dalibor VOJTĚCH a, Pavel NOVÁK a, Jan DRAHOKOUPIL c, Kamil KOLAŘÍK d a Institute of Chemical Technology, Prague,

More information

* ** *** ( , )

* ** *** ( , ) HWAHAK KONGHAK Vol. 39, No. 2, April, 2001, pp. 206-212 (Journal of the Korean Institute of Chemical Engineers) - II. * ** *** * ** *** (2000 9 7, 2001 2 13 ) Synthesis of Porous Al 2 Particles by Sol-Gel

More information

Corrosion study of Li-based blanket materials in RF

Corrosion study of Li-based blanket materials in RF Corrosion study of Li-based blanket materials in RF N.I., Loginov1 M.N. Arnoldov1, V.A. Morozov1, I.R. Kirillov2, A.E. Solomatin3 1-Institute of Physics and Power Engineering (IPPE), Obninsk; 2- D.V. Efremov

More information

Joining of C f /SiC composites with Niobium alloy

Joining of C f /SiC composites with Niobium alloy Joining of C f /SiC composites with Niobium alloy Y. Du, C. Liang, X. Zheng College of Aerospace & Materials Engineering National University of Defense Technology Changsha, 410073, P.R. China Email:yongguod@hotmail.com

More information

Synthesis of Nanostructured Silicon Carbide Spheres from Mesoporous C-SiO 2 Nanocomposites

Synthesis of Nanostructured Silicon Carbide Spheres from Mesoporous C-SiO 2 Nanocomposites Supplementary information: Synthesis of Nanostructured Silicon Carbide Spheres from Mesoporous C-SiO 2 Nanocomposites By Kun Wang, Huanting Wang and Yi-Bing Cheng* [*]Corresponding author: Prof. Yi-Bing

More information

Irrigated rice variety improvement in the dry season in the Lao PDR

Irrigated rice variety improvement in the dry season in the Lao PDR Irrigated rice variety improvement in the dry season 2000-2001 in the Lao PDR Sengpaseuth Rasabandith 1 1 National Agricultural Research Center, P.O. Box 811, Vientiane, Lao PDR. E-mail: sengpase@laotel.com

More information

Preparation of Ammonium Cerium(IV) Nitrate from Cerium(III) Hydroxide

Preparation of Ammonium Cerium(IV) Nitrate from Cerium(III) Hydroxide HWAHAK KONGHAK Vol. 41, No. 3, June, 2003, pp. 326-331 (III) (IV) *, 305-350 30 * 590-711 720 (2002 12 16! "#, 2003 3 5! $%) Preparation of Ammonium Cerium(IV) Nitrate from Cerium(III) Hydroxide Ho-Sung

More information

Cu 70 Zr 30. Effects of cooling rate on primary phase and peritectic transformation in Cu 70 Zr 30 alloy (2014)

Cu 70 Zr 30. Effects of cooling rate on primary phase and peritectic transformation in Cu 70 Zr 30 alloy (2014) 24 9 2014 9 Volume 24 Number 9 The Chinese Journal of Nonferrous Metals September 2014 1004-0609(2014)09-2295-07 Cu 70 Zr 30 1, 2 1 1, 2 1 1 3 (1. 330063 2. 330063 3. 710072) Cu 70 Zr 30 1042 957 5 m Cu

More information

Aquatic plants for domestic wastewater treatment: Lotus (Nelumbo nucifera) and Hydrilla (Hydrilla verticillata) systems

Aquatic plants for domestic wastewater treatment: Lotus (Nelumbo nucifera) and Hydrilla (Hydrilla verticillata) systems SHORT COMMUNICATION : Lotus (Nelumbo nucifera) and Hydrilla (Hydrilla verticillata) systems Thongchai Kanabkaew 1 and Udomphon Puetpaiboon 2 Abstract : Lotus (Nelumbo nucifera) and Hydrilla (Hydrilla verticillata)

More information

Vertex for Healthier Lakes

Vertex for Healthier Lakes Vertex for Healthier Lakes WINTER AERATION kills, de-ice docks to prevent damage, and provide open water for water fowl in cold climates SPRING/FALL AERATION Reduce problems caused by tunover by keeping

More information

PHOTOCHEMICAL GRID MODELING SUPPORTING INTER-PRECURSOR TRADING FOR NONATTAINMENT NEW SOURCE REVIEW

PHOTOCHEMICAL GRID MODELING SUPPORTING INTER-PRECURSOR TRADING FOR NONATTAINMENT NEW SOURCE REVIEW PHOTOCHEMICAL GRID MODELING SUPPORTING INTER-PRECURSOR TRADING FOR NONATTAINMENT NEW SOURCE REVIEW Presented by Qi Zhang Providence Engineering and Environmental Group LLC 1 AGENDA What is inter-precursor

More information

Baby Corn Production under a Contract Farming System

Baby Corn Production under a Contract Farming System Kasetsart J. (Soc. Sci) 31 : 472-478 (2010) «. µ» µ å ( ß ) ªï Ë 31 : 472-478 (2553) Baby Corn Production under a Contract Farming System Visit Limsombunchai* and Sanit Kao-ian ABSTRACT The objectives

More information

Ceramic Processing Research

Ceramic Processing Research Journal of Ceramic Processing Research. Vol. 19, No. 6, pp. 519~524 (2018) J O U R N A L O F Ceramic Processing Research Thermodynamic analysis on the chemical vapor deposition process of Ta-C-H-Cl system

More information

State of the Gasification Industry: Worldwide Gasification Database 2015 Update

State of the Gasification Industry: Worldwide Gasification Database 2015 Update State of the Gasification Industry: Worldwide Gasification Database 2015 Update Gasification Technologies Conference Colorado Springs, 14 October, 2015 Chris Higman Overview Introduction New online feature

More information

â â Èß º º μ μ πß π Õπ μ Use of Waste Ash from Agricultural by-products in Concrete Work

â â Èß º º μ μ πß π Õπ μ Use of Waste Ash from Agricultural by-products in Concrete Work RMUTP Research Journal, Vol. 2, No. 1, March 2008 49 â â Èß º º μ μ πß π Õπ μ Use of Waste Ash from Agricultural by-products in Concrete Work ß âõπ 1 * ª π ª 2 1 π «Õßπ ºπ. æ π. 10300 2» μ å «« μ å À «Õπ

More information

DO NOT USE FOR REAL LIFE NAVIGATION

DO NOT USE FOR REAL LIFE NAVIGATION 001 12 10 359 DO NOT USE FOR REAL LIFE NAVIGATION -. / - 0-1 2 3 4 5 5 6 4 5 6 007 48 00' DEFINITION OF ROUTINGS Caution: EQPT compulsory for flights planned at or above FL. ACFT DEP towards NORTH shall

More information

PART A (10 2 = 20 marks) Answer any TEN questions. {Pμ»õ ÂQuzøu } GÆÁõÖ PnUQkÁõ? 7. What do you mean by Cash From Operations?

PART A (10 2 = 20 marks) Answer any TEN questions. {Pμ»õ ÂQuzøu } GÆÁõÖ PnUQkÁõ? 7. What do you mean by Cash From Operations? NOVEMBER 2015 Time : Three hours Maximum : 75 marks PART A (10 2 = 20 marks) Answer any TEN questions. 1. Define Management Accounting.»õsø PnUQ À Áøμ Ö. 2. What is meant by Current Assets? h ö\õzxupò

More information

The Effect of Artificial Rain on Maize and Cassava Yields in Tonle Sap River Basin, Sa Kaeo Province, Thailand

The Effect of Artificial Rain on Maize and Cassava Yields in Tonle Sap River Basin, Sa Kaeo Province, Thailand Kasetsart J. (Soc. Sci) 32 : 125-133 (2011) «. µ» µ å ( ß ) ªï Ë 32 : 125-133 (2554) The Effect of Artificial Rain on Maize and Cassava Yields in Tonle Sap River Basin, Sa Kaeo Province, Thailand Nongnooch

More information

EFFECT OF CARBON COATING ON CATHODE ACTIVE MATERIAL OF LiFe0.9Ni0.1PO4 FOR LITHIUM BATTERY

EFFECT OF CARBON COATING ON CATHODE ACTIVE MATERIAL OF LiFe0.9Ni0.1PO4 FOR LITHIUM BATTERY EFFECT OF CARBON COATING ON CATHODE ACTIVE MATERIAL OF LiFe0.9Ni0.1PO4 FOR LITHIUM BATTERY Bambang Prihandoko 1, R. Ibrahim Purawiardi 1 and Sri Rakhmawati 2 1 Research Centre for Physics, Indonesian Institute

More information

ELSAYED Ayman*, IMAI Hisashi**, UMEDA Junko** and KONDOH Katsuyoshi*** Abstract

ELSAYED Ayman*, IMAI Hisashi**, UMEDA Junko** and KONDOH Katsuyoshi*** Abstract Effect of Consolidation and Extrusion Temperatures on Tensile Properties of Hot Extruded ZK61 Magnesium Alloy Gas Atomized Powders via Spark Plasma Sintering ELSAYED Ayman*, IMAI Hisashi**, UMEDA Junko**

More information

HILTI CP 604 Self Levelling Firestop Sealant

HILTI CP 604 Self Levelling Firestop Sealant Data Sheet HILTI CP 604 Self Levelling Firestop Sealant The enclosed pages are taken from the Hilti Firestop Systems Manual Edition April 2011 Supported by additional standard details For Material Safety

More information

Marketing II Standards, Competencies, & Evidence of Mastery

Marketing II Standards, Competencies, & Evidence of Mastery Marketing II Standards, Competencies, & Evidence of Mastery This document accompanies the Missouri Marketing II Instructional Framework and lists the standards and competencies from the MBA Research Standards

More information

Ultrasonic enhanced electroless copper plating on microporous polyurethane foam

Ultrasonic enhanced electroless copper plating on microporous polyurethane foam 42 1 ( ) Vol.42 No.1 2011 1 Journal of Central South University (Science and Technology) Jan. 2011 ( 410083) 0.3 mm ph 16 g/l 30 g/l Na 2 EDTA 20 g/l α,α - 25 mg/l 25 mg/l PEG-1000 1 g/l 5 ml/l ph 12.5~13.0

More information

2. EXISTING FEM MODELS

2. EXISTING FEM MODELS User information click here Ò«³» ½ л¼ ½ ±² ±º Þ ½ Ì ² «³ ß ± Ó ½ ± «½ ² ر Ú± ¹ ²¹ Ñ» ±² Ù ² «½ Þ«ºº ô ß² ±² ²± Ü«½ ±ô Ô ª ² Ú ² ô Ú ¾ ± Ó ½ ˲ ª» ±º л ³±ô Ü» ³»² ±º ²¼«Û²¹ ²»» ²¹ô Ê» ¼»» ͽ»²» çðïððô

More information

ÿ µ π Õß π Àπ «ß Õ º à ª

ÿ µ π Õß π Àπ «ß Õ º à ª ««æ π. ªï Ë 27 Ë 1 - π 2547 3 ÿ µ π Õß π Àπ «ß Õ º à ª ÿ«πå ÿ µ 1 àõß 2 À «π æ Õ â π ÿ ß ÿàß ÿ ÿß æœ 10140 ËÕ 28 2546 µõ ËÕ 28 ßÀ 2546 àõ ß π«π È â» ÿ µ π Õß π Àπ «º à ª π π Àπ «ÕàÕπ ß Õ àõ â ß ß ß Ë ª.

More information

ÎßÅíÍÀàÌÀŠÞ ÀèÍ ÀàÌÏßÖéÈãÌ ÑèÌÏèÀѺÌâÓìÜà åì Å.Î.Î Öà

ÎßÅíÍÀàÌÀŠÞ ÀèÍ ÀàÌÏßÖéÈãÌ ÑèÌÏèÀѺÌâÓìÜà åì Å.Î.Î Öà The Lao Journal of Agriculture and Forestry, No. 18 ÎßÅíÍÀàÌÀŠÞ ÀèÍ ÀàÌÏßÖéÈãÌ ÑèÌÏèÀѺÌâÓìÜà åì Å.Î.Î Öà ÎßÖê à ÓàÉÞÈ 1 ãöß ÍîÌâÌìÜÃ È ÃÍîÍÏà 2 ÍíÈÂèÈØÇ ÏèÀãÓŠÌãÛŠÃË ÜîÈíÓÝ ÃÓêÁÜà ééàóéì, ËàÈÜàØàÌÅáÝÜÃ

More information

FROM 0 TO Trainer s Guide. Copyright Store 16949store.com

FROM 0 TO Trainer s Guide. Copyright Store 16949store.com FROM 0 TO 16949 Introduction to ISO/TS 16949 Trainer s Guide Copyright 2009 16949 Store 16949store.com Introductionto ISO/TS16949:2009 Materials This course is designed to train employees on the requirements

More information

TRAIN marshaling operation at freight yard is required

TRAIN marshaling operation at freight yard is required A New Reinforcement Learning Method for Train Marshaling Based on the Transfer Distance of Locomotive Yoichi Hirashima Abstract In this paper a new reinforcement learning system for generating marshaling

More information

Chinese and Foreign Sports Industry Development TFP Analysis and DEA Approach Applied Research

Chinese and Foreign Sports Industry Development TFP Analysis and DEA Approach Applied Research Send Orders for Reprints to reprints@benthamscience.ae 39 The Open Cybernetics & Systemics Journal, 5, 9, 39-395 Open Access Chinese and Foreign Sports Industry Development TFP Analysis and DEA Approach

More information

Effect of various surface treatments on diamond f ilms deposited on WC26 %Co

Effect of various surface treatments on diamond f ilms deposited on WC26 %Co 14 3 Vol. 14 No. 3 The Chinese Journal of Nonferrous Metals 2004 3 Mar. 2004 : 1004 0609 (2004) 03 0429 06 1, 1, 1, 1, 1, 2 2, (1., 410083 ; 2., 410083) : YG6, X :, Murakami 30 min, H 2 SO 4 H 2 O 2 =

More information

Supplementary Figure S1 A comparison between the indium trimer in ITC-n and nickel trimer in ITC-n-Ni.

Supplementary Figure S1 A comparison between the indium trimer in ITC-n and nickel trimer in ITC-n-Ni. Supplementary Figure S1 A comparison between the indium trimer in ITC-n and nickel trimer in ITC-n-Ni. Supplementary Figure S2 Powder XRD and the simulation pattern of (a) ITC-1, (b) ITC-2, ITC-2NH 2 and

More information

Gasification Characteristics of Waste Tire in an Internally Circulating Fluidized Bed

Gasification Characteristics of Waste Tire in an Internally Circulating Fluidized Bed HWAHAK KONGHAK Vol. 39, No. 1, February, 2001, pp. 72-76 (Journal of the Korean Institute of Chemical Engineers) (2000 3 22, 2000 12 5 ) Gasification Characteristics of Waste Tire in an Internally Circulating

More information

Ceramic Processing Research

Ceramic Processing Research Journal of Ceramic Processing Research. Vol. 10, No. 1, pp. 90~94 (2009) J O U R N A L O F Ceramic Processing Research An investigation into multi-layered coatings on bipolar plates for a PEM (proton exchange

More information

EFFECT OF TEMPERATURE AND STRAIN RATE ON THE CONSTITUTIVE RELATION OF FROZEN SATURATED SILT

EFFECT OF TEMPERATURE AND STRAIN RATE ON THE CONSTITUTIVE RELATION OF FROZEN SATURATED SILT EFFECT OF TEMPERATURE AND STRAIN RATE ON THE CONSTITUTIVE RELATION OF FROZEN SATURATED SILT Zhu Yuanlin, He Ping, Zhang Jiayi, Zhang Jianming State Key Laboratory of Frozen Soil Engineering, Lanzhou Institute

More information

A Q-learning System for Container Marshalling with Group-Based Learning Model at Container Yard Terminals

A Q-learning System for Container Marshalling with Group-Based Learning Model at Container Yard Terminals A Q-learning System for Container Marshalling with Group-Based Learning Model at Container Yard Terminals Yoichi Hirashima Abstract This paper addresses scheduling problems on the material handling operation

More information