Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000 degrees-1400 degrees C in Air

doi:10.1111/j.1551-2916.2009.03434.x

IMR OpenIR

	Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000 degrees-1400 degrees C in Air
	Li, Meishuan 1; Li, Chao 1,2; Li, Jingjing 1; Zhou, Yanchun 1
通讯作者	Li, Meishuan(mshli@imr.ac.cn)
	2010-02-01
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	93 期号:2 页码:554-560
摘要	The oxidation behaviors of a Ti3AlC2/20(vol%)TiB2 composite, synthesized by means of in situ reactions of Ti, Al, graphite, and B4C powder mixtures under hot pressing, have been investigated at 1000 degrees-1400 degrees C in air. The Ti3AlC2/20TiB(2) composite followed the logarithmic oxidation law, and had a lower oxidation rate than the matrix Ti3AlC2. During the oxidation at 1000 degrees-1400 degrees C, a continuous Al2O3 formed on the composite, meanwhile other different oxides formed on the top surface of the Al2O3 layer, depending on the oxidation temperature: discontinuous alpha-TiO2 at below 1200 degrees C, mixture of Al2TiO5 and TiO2 at 1300 degrees C, and continuous Al2TiO5 at 1400 degrees C. The selective oxidation of Al occurred at the oxide/substrate interface through inward diffusion of oxygen, and TiO2 overgrew the Al2O3 layer to form coarse grains through outward diffusion of titanium ions. When the temperature was above 1280 degrees C, Al2TiO5 appeared due to a eutectic reaction between TiO2 and Al2O3. The incorporation of TiB2 promoted the generation of great numbers of voids at the Al2O3/substrate interface and in the Al2O3 inner layer, which is proposed as being the main reason for the Ti3AlC2/20TiB(2) composite to follow a logarithmic oxidation law.
资助者	National Science Foundation of China
DOI	10.1111/j.1551-2916.2009.03434.x
收录类别	SCI
语种	英语
资助项目	National Science Foundation of China[50771099]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000274176500045
出版者	WILEY-BLACKWELL
引用统计	被引频次：12[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/321006/102823
专题	中国科学院金属研究所
通讯作者	Li, Meishuan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 2.Liaoning Univ, Coll Light Ind, Shenyang 110036, Peoples R China
推荐引用方式 GB/T 7714	Li, Meishuan,Li, Chao,Li, Jingjing,et al. Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000 degrees-1400 degrees C in Air[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2010,93(2):554-560.
APA	Li, Meishuan,Li, Chao,Li, Jingjing,&Zhou, Yanchun.(2010).Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000 degrees-1400 degrees C in Air.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,93(2),554-560.
MLA	Li, Meishuan,et al."Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000 degrees-1400 degrees C in Air".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 93.2(2010):554-560.