In situ processing and high-temperature properties of Ti3Si(Al)C-2/SiC composites

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	In situ processing and high-temperature properties of Ti3Si(Al)C-2/SiC composites
	Y. C. Zhou; D. T. Wan; Y. W. Bao; J. Y. Wang
	2006
发表期刊	International Journal of Applied Ceramic Technology
ISSN	1546-542X
卷号	3 期号:1 页码:47-54
摘要	Ti3SiC2 has many salient properties including low density, high strength and modulus, damage tolerance at room temperature, good machinablity, and being resistant to thermal shock and oxidation below 1100 degrees C. However, the low hardness and poor oxidation resistance above 1100 degrees C limit the application of this material. The poor oxidation resistance at temperatures above 1100 degrees C was because of the absence of protective layer in the scale and the presence of TiC impurity phase. TiC impurity could be eliminated by adding a small amount of Al to form Ti3Si(Al)C-2 solid solutions. Although the high-temperature oxidation resistance was significantly improved for the Ti3Si(Al)C-2 solid solutions, the strength at high temperatures was lost. One important way to enhance the high-temperature strength is to incorporate hard ceramic particles like SiC. In this article, we describe the in situ synthesis and simultaneous densification of Ti3Si(Al)C-2/SiC composites using Ti, Si, Al, and graphite powders as the initial materials. The effect of SiC content on high-temperature mechanical properties and oxidation resistance were investigated. The mechanisms for the improved high-temperature properties are discussed.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing 100039, peoples r china.;zhou, yc (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Liquid Reaction Synthesis Mechanical-properties Oxidation Resistance Silicon-carbide Ti3sic2/sic Composite Displacement Reaction Electronic-structure Solid-solution Bulk Ceramics Air
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WOS记录号	WOS:000234803300006
引用统计	被引频次：53[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34773
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. C. Zhou,D. T. Wan,Y. W. Bao,et al. In situ processing and high-temperature properties of Ti3Si(Al)C-2/SiC composites[J]. International Journal of Applied Ceramic Technology,2006,3(1):47-54.
APA	Y. C. Zhou,D. T. Wan,Y. W. Bao,&J. Y. Wang.(2006).In situ processing and high-temperature properties of Ti3Si(Al)C-2/SiC composites.International Journal of Applied Ceramic Technology,3(1),47-54.
MLA	Y. C. Zhou,et al."In situ processing and high-temperature properties of Ti3Si(Al)C-2/SiC composites".International Journal of Applied Ceramic Technology 3.1(2006):47-54.