Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure

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	Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure
	A. J. Li; C. F. Hu; M. S. Li; Y. C. Zhou
	2009
发表期刊	Journal of the European Ceramic Society
ISSN	0955-2219
卷号	29 期号:12 页码:2619-2625
摘要	The joining of titanium aluminum carbides has been successfully performed at high temperature and low oxygen partial pressure. The mechanism of the bonding is attributed to the preferential oxidation of At atoms in the titanium aluminum carbides at low oxygen partial pressure, which leads to the formation of an Al(2)O(3) layer through the joint interface. The specimens joined at 1400 degrees C exhibit a high flexural strength of 315 +/- 19.1 MPa for Ti(2)AlC and 332 +/- 2.83 MPa for Ti(3)AlC(2), which is about 95% and 88% of the substrates, respectively, and the high flexural strength can be retained up to 1000 degrees C. The high mechanical performance of the joints is attributed to the similar density and thermal expansion coefficient values of Al(2)O(3) to those of the Ti(2)AlC and Ti(3)AlC(2) substrates. It indicates that bonding via preferential oxidation at low oxygen partial pressure is a practical and efficient method for Ti(2)AlC and Ti(3)AlC(20) (C) 2009 Elsevier Ltd. All rights reserved.
部门归属	[zhou, yanchun] chinese acad sci, highperformance ceram div, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [li, aijun; hu, chunfeng] chinese acad sci, grad sch, beijing 100039, peoples r china.;zhou, yc (reprint author), chinese acad sci, highperformance ceram div, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Titanium Aluminum Carbides Joining Preferential Oxidation Al(2)o(3) Interfacial Layer Flexural Strength Liquid Reaction Synthesis High-temperature Polycrystalline Ti2alc Ti3alc2 Behavior Aluminum Air Microstructure Carbides Phase
URL	查看原文
WOS记录号	WOS:000267555500022
引用统计	被引频次：25[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/321006/32009
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	A. J. Li,C. F. Hu,M. S. Li,et al. Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure[J]. Journal of the European Ceramic Society,2009,29(12):2619-2625.
APA	A. J. Li,C. F. Hu,M. S. Li,&Y. C. Zhou.(2009).Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure.Journal of the European Ceramic Society,29(12),2619-2625.
MLA	A. J. Li,et al."Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure".Journal of the European Ceramic Society 29.12(2009):2619-2625.