Microstructural study of the interface reaction between titania whiskers and aluminum

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	Microstructural study of the interface reaction between titania whiskers and aluminum
	J. Pan; J. H. Li; H. Fukunaga; X. G. Ning; H. Q. Ye; Z. K. Yao; D. M. Yang
	1997
发表期刊	Composites Science and Technology
ISSN	0266-3538
卷号	57 期号:3 页码:319-325
摘要	Titania (TiO2) whiskers have been used to react with aluminum to fabricate composite materials. By reaction squeeze-casting, aluminum composites reinforced with the hard phases alpha Al2O3 and TiAl3 can be fabricated. A characteristic of this process is that the reaction is too drastic to control. Owing to the volume shrinkage during the reaction, the metallographical structure of the composite so prepared is heterogeneous. By squeeze casting at a lower temperature, however, a macroscopically non-reacted TiO2/Al composite can be fabricated. At the interface there is only a continuous TiO layer with a thickness of similar to 10-20 nm. After heat-treatment of the TiO2/Al composite at 800 degrees C, a new Al2O3/TiAl3 composite is prepared by the reaction: 3TiO(2) + 2Al-->3TiO + gamma Al2O3, 3TiO + 2Al-->3Ti + alpha Al2O3, Ti + 3Al-->TiAl3,. The Vickers hardness increases with heating time, as does the quantity of matrix defects caused by the volume shrinkage accompanying the reaction, and hence the flexural strength degrades with heating time. (C) 1997 Elsevier Science Limited.
部门归属	chinese acad sci,inst met res,atom imaging solids lab,shenyang 110015,peoples r china. hiroshima univ,fac engn,higashihiroshima 724,japan. harbin inst technol,dept met & technol,harbin 150001,peoples r china.;pan, j (reprint author), changsha inst technol,dept mat engn & appl chem,changsha 410073,peoples r china
关键词	Titania Whiskers Aluminum Squeeze Casting Interface Reaction Hrtem Metal-matrix Composites
URL	查看原文
WOS记录号	WOS:A1997WQ72600006
引用统计	被引频次：33[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/321006/38057
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Pan,J. H. Li,H. Fukunaga,et al. Microstructural study of the interface reaction between titania whiskers and aluminum[J]. Composites Science and Technology,1997,57(3):319-325.
APA	J. Pan.,J. H. Li.,H. Fukunaga.,X. G. Ning.,H. Q. Ye.,...&D. M. Yang.(1997).Microstructural study of the interface reaction between titania whiskers and aluminum.Composites Science and Technology,57(3),319-325.
MLA	J. Pan,et al."Microstructural study of the interface reaction between titania whiskers and aluminum".Composites Science and Technology 57.3(1997):319-325.