In situ preparation of titanium matrix composites reinforced with TiB whiskers andY2O3 particles

被引：42

作者：

Geng, K ^{[1
]}

Lu, WJ ^{[1
]}

Qin, YX ^{[1
]}

Zhang, D ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat & Engn, State Key Lab Met Matrix Composities, Shanghai 200030, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2004年 / 39卷 / 06期

关键词：

composites; ceramic; electron microscopy; microstructure;

D O I：

10.1016/j.materresbull.2003.11.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium matrix composites reinforced with TiB and Y2O3 were prepared by a non-consumable arc-melting technology. X-ray diffraction (XRD) was used to identify the phases in the composites. Microstructures of the composites were observed by means of optical microscope (OM), scanning electron microscope (SEM), and transmission electron microscope (TEM). The results show that there are two kinds of reinforcements formed in the titanium matrix, needle-shaped TiB and Y2O3 with near-equiaxed and dendritic shape. The interfaces between reinforcements and titanium are clear and there is no evidence of interfacial reaction. The hardness of the composites decreases with the increasing contents of yttrium in the composite. (C) 2004 Published by Elsevier Ltd.

引用

页码：873 / 879

页数：7

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