In-situ reaction synthesis and decomposition of Ta(2)AlC

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	In-situ reaction synthesis and decomposition of Ta(2)AlC
	C. F. Hu; J. Zhang; Y. W. Bao; J. Y. Wang; M. S. Li; Y. C. Zhou
	2008
发表期刊	International Journal of Materials Research
ISSN	1862-5282
卷号	99 期号:1 页码:41134
摘要	Dense bulk Ta(2)AlC ceramic was fabricated by in-situ reaction/hot pressing of Ta, Al and C powders. The reaction path and effects of initial composition on the purity were investigated. It was found that Ta(2)AlC formed through the reactions between AlTa(2) and graphite, or between Ta(5)Al(3)C, TaC and graphite at 1500-1550 degrees C. By modifying the molar ratio of the initial Ta, Al, and C powders, single-phase Ta(2)AlC was prepared at 1550 degrees C under an Ar atmosphere with an optimized composition of Ta: Al: C = 2: 1.2: 0.9. The lattice parameter and a new set of X-ray diffraction data of Ta(2)AlC were obtained. In addition, Ta(2)AlC was reported unstable above 1600 degrees C and decomposed to Ta(4)AlC(3), and then to TaC(x).
部门归属	[hu, chunfeng; zhang, jie; bao, yiwang; wang, jingyang; li, meishuan; zhou, yanchun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [hu, chunfeng; zhang, jie] chinese acad sci, grad sch, beijing, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Ta(2)Alc Synthesis Decomposition Liquid Reaction Synthesis Microstructure Evolution Polycrystalline Ti2alc Mechanical-properties Contact Damage Ti3sic2 Ti3alc2 Carbides Phase Nb
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32815
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. F. Hu,J. Zhang,Y. W. Bao,et al. In-situ reaction synthesis and decomposition of Ta(2)AlC[J]. International Journal of Materials Research,2008,99(1):41134.
APA	C. F. Hu,J. Zhang,Y. W. Bao,J. Y. Wang,M. S. Li,&Y. C. Zhou.(2008).In-situ reaction synthesis and decomposition of Ta(2)AlC.International Journal of Materials Research,99(1),41134.
MLA	C. F. Hu,et al."In-situ reaction synthesis and decomposition of Ta(2)AlC".International Journal of Materials Research 99.1(2008):41134.