Fabrication of TiO2 nanowhiskers by the heat treatment of bulk Ti3Si0.9Al0.1C2 in rough vacuum

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	Fabrication of TiO2 nanowhiskers by the heat treatment of bulk Ti3Si0.9Al0.1C2 in rough vacuum
	Gai, Jianli; Chen, Jixin; Zhang, Hui; Liu, Zhimou; Li, Meishuan; Zhou, Yanchun; Chen, JX (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
	2016-05-01
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	42 期号:6 页码:6868-6873
摘要	Rutile TiO2 nanowhiskers with [0 0 1] growth direction were successfully fabricated by treating bulk Ti3Si0.9Al0.1C2 solid solution at 900 degrees C in 10(4) Pa air. In the initial stage, TiO2 nanowhiskers are preferentially formed on the side facets of Ti3Si0.9Al0.1C2 grains due to the rapid diffusion of Ti atoms along the basal planes. With the increase of treating time, a mixed oxide scale of TiO2, SiO2 and Al2O3 is gradually developed. Consequently, the growth of TiO2 nanowhiskers is controlled by the diffusion of Ti in the mixed oxide scale. In addition, it is found that the growth rate of TiO2 nanowhiskers strongly depends on the air pressure and the treating temperature. It diminishes dramatically with the decrease of temperature. However, only TiO2 nanosheets and large grains can be obtained above 1000 degrees C. In addition, air pressure around 104 Pa is appropriate for the growth of nanowhiskers. (c) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
部门归属	[gai, jianli ; chen, jixin ; zhang, hui ; liu, zhimou ; li, meishuan] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [gai, jianli ; zhang, hui ; liu, zhimou] univ chinese acad sci, beijing 100039, peoples r china ; [zhou, yanchun] aerosp res inst mat & proc technol, sci & technol adv funct composite lab, beijing 100076, peoples r china
关键词	Whiskers Diffusion Tio2 Ti3si0.9al0.1c2
学科领域	Materials Science
资助者	National Natural Science Foundation of China [50802099, 51072201]
收录类别	sci
语种	英语
WOS记录号	WOS:000372676000041
引用统计	被引频次：1[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/321006/75902
专题	中国科学院金属研究所
通讯作者	Chen, JX (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Gai, Jianli,Chen, Jixin,Zhang, Hui,et al. Fabrication of TiO2 nanowhiskers by the heat treatment of bulk Ti3Si0.9Al0.1C2 in rough vacuum[J]. CERAMICS INTERNATIONAL,2016,42(6):6868-6873.
APA	Gai, Jianli.,Chen, Jixin.,Zhang, Hui.,Liu, Zhimou.,Li, Meishuan.,...&Chen, JX .(2016).Fabrication of TiO2 nanowhiskers by the heat treatment of bulk Ti3Si0.9Al0.1C2 in rough vacuum.CERAMICS INTERNATIONAL,42(6),6868-6873.
MLA	Gai, Jianli,et al."Fabrication of TiO2 nanowhiskers by the heat treatment of bulk Ti3Si0.9Al0.1C2 in rough vacuum".CERAMICS INTERNATIONAL 42.6(2016):6868-6873.