In Situ Reaction Synthesis and Mechanical Properties of V(2)AlC

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	In Situ Reaction Synthesis and Mechanical Properties of V(2)AlC
	C. F. Hu; L. F. He; M. Y. Liu; X. H. Wang; J. Y. Wang; M. S. Li; Y. W. Bao; Y. C. Zhou
	2008
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	91 期号:12 页码:4029-4035
摘要	A dense V(2)AlC ceramic was synthesized by an in situ reaction/hot pressing method using V, Al, and C powders as starting materials. The reaction path was investigated. It was found that V(2)AlC was produced by a reaction between Al(8)V(5) and C. Single -phase V(2)AlC could be prepared using the optimized molar ratio of V:Al:C=2:1.2:0.9. The grain sizes of as-prepared V(2)AlC samples were temperature dependent. On increasing the temperature from 1400 degrees to 1700 degrees C, the mean grain size of V(2)AlC increased from 49 mu m in length and 19 mu m in width to 405 mu m in length and 106 mu m in width. The V(2)AlC sample sintered at 1500 degrees C exhibited the highest flexural strength of 289 MPa and a fracture toughness of 5.7 MPa.m(1/2), while the V(2)AlC sample prepared at 1400 degrees C showed the highest compressive strength of 742 MPa. The sample sintered at 1700 degrees C possessed the highest damage tolerance. Additionally, V(2)AlC could retain a high degree of Young's modulus up to 1200 degrees C. Below 800 degrees C, V(2)AlC showed excellent thermal shock resistance.
部门归属	[hu, chunfeng; he, lingfeng; liu, mingyue; wang, xiaohui; wang, jingyang; li, meishuan; bao, yiwang; zhou, yanchun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [hu, chunfeng; he, lingfeng] chinese acad sci, grad sch, beijing 100039, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Liquid Reaction Synthesis Thermal-shock Behavior Layered Ti3sic2 Pressing Method Bulk Cr2alc Ceramics Ti3alc2 Phases Ti Damage
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32812
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. F. Hu,L. F. He,M. Y. Liu,et al. In Situ Reaction Synthesis and Mechanical Properties of V(2)AlC[J]. Journal of the American Ceramic Society,2008,91(12):4029-4035.
APA	C. F. Hu.,L. F. He.,M. Y. Liu.,X. H. Wang.,J. Y. Wang.,...&Y. C. Zhou.(2008).In Situ Reaction Synthesis and Mechanical Properties of V(2)AlC.Journal of the American Ceramic Society,91(12),4029-4035.
MLA	C. F. Hu,et al."In Situ Reaction Synthesis and Mechanical Properties of V(2)AlC".Journal of the American Ceramic Society 91.12(2008):4029-4035.