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	Synthesis of Ti3SiC2 bulk materials with B2O3 additive
	Wu, LF ; Wang, CA ; Huang, Y
	2010-05-10 ; 2010-05-10
会议名称	HIGH-PERFORMANCE CERAMICS III, PTS 1 AND 2 ; 3rd China International Conference on High-Performance Ceramics (CICC-3) ; Shenzhen, PEOPLES R CHINA ; Web of Science
关键词	Ti3SiC2 bulk material B2O3 additive hot-pressing Materials Science, Ceramics Materials Science, Composites
中文摘要	Ti3SiC2 bulk materials by hot-pressing sintering were presented through adding a little amount of B2O3 as a low-temperature additive in different raw-material systems. In one system, elemental titanium, silicon and active carbon were used as reactants with a molar ratio of 3: 1: 2. In another one, titanium carbide, titanium and silicon reacted together with a molar ratio of 2: 1: 1. At different temperatures, samples were synthesized by hot-pressing with a heating rate of 30degreesC min(-1) before 1200degreesC and then 10degreesC min(-1) to peak temperatures, holding for 2h. The effect of sintering temperature on the purity of Ti3SiC2 was investigated at the range of 1200degreesC to 1500degreesC. The products mainly contained Ti3SiC2 with TiC as the second phase. In some cases, Ti5Si3 appeared as well. When sintered at 1300degreesC, above 98vol% Ti3SiC2 was obtained in the elemental system. The roles of B2O3 additive were considered as weakening the thermal explosion reaction in the elemental mixture and affecting the diffusion procedure at low temperature in both systems.
会议录出版者	TRANS TECH PUBLICATIONS LTD ; ZURICH-UETIKON ; BRANDRAIN 6, CH-8707 ZURICH-UETIKON, SWITZERLAND
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18253]
专题	清华大学
推荐引用方式 GB/T 7714	Wu, LF,Wang, CA,Huang, Y. Synthesis of Ti3SiC2 bulk materials with B2O3 additive[C]. 见:HIGH-PERFORMANCE CERAMICS III, PTS 1 AND 2, 3rd China International Conference on High-Performance Ceramics (CICC-3), Shenzhen, PEOPLES R CHINA, Web of Science.

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