Improving the High-Temperature Oxidation Resistance of Ti(3)(SiAl)C(2) by Nb-Doping

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	Improving the High-Temperature Oxidation Resistance of Ti(3)(SiAl)C(2) by Nb-Doping
	L. L. Zheng; L. C. Sun; M. S. A. Li; Y. C. Zhou
	2011
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	94 期号:10 页码:3579-3586
摘要	A (TiNb)(3)(SiAl)C(2) solid solution was designed and synthesized to improve the high-temperature oxidation resistance of Ti(3)(SiAl)C(2). After doping with Nb, the oxidation resistance of Ti(3)(SiAl)C(2) is improved. Its oxidation kinetics follows parabolic behavior up to 1300 degrees C. The oxide scale formed on (TiNb)(3)(SiAl)C(2) is thinner and smaller in grain size than that on Ti(3)(SiAl)C(2) under the same oxidation condition. The beneficial effect of Nb doping on the oxidation resistance of Ti(3)(SiAl)C(2) mainly results from the decreased concentration of oxygen vacancies and titanium interstitials in the rutile form of TiO(2), and the inhibited generation of excessive voids in the oxide scale.
部门归属	[zheng, li-li; sun, lu-chao; li, mei-shuan; zhou, yan-chun] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [zheng, li-li; sun, lu-chao] chinese acad sci, grad sch, beijing 100039, peoples r china.;li, msa (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;mshli@imr.ac.cn
关键词	Semiconducting Properties Mechanical-properties Titanium-dioxide Defect Chemistry Ti3si(Al)C-2/sic Composites Ti3sic2/sic Composite Oxide Scale Behavior Air Niobium
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30965
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. L. Zheng,L. C. Sun,M. S. A. Li,et al. Improving the High-Temperature Oxidation Resistance of Ti(3)(SiAl)C(2) by Nb-Doping[J]. Journal of the American Ceramic Society,2011,94(10):3579-3586.
APA	L. L. Zheng,L. C. Sun,M. S. A. Li,&Y. C. Zhou.(2011).Improving the High-Temperature Oxidation Resistance of Ti(3)(SiAl)C(2) by Nb-Doping.Journal of the American Ceramic Society,94(10),3579-3586.
MLA	L. L. Zheng,et al."Improving the High-Temperature Oxidation Resistance of Ti(3)(SiAl)C(2) by Nb-Doping".Journal of the American Ceramic Society 94.10(2011):3579-3586.