In situ synthesis of hybrid-reinforced titanium matrix composites

被引：14
|
作者：
Yang, Zhifeng [1 ]
Lu, Weijie [1 ]
Zhao, Lin [1 ]
Lu, Junqiang [1 ]
Qin, Jining [1 ]
Zhang, Di [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China
来源：
MATERIALS LETTERS | 2007年 / 61卷 / 11-12期
关键词：
titanium matrix composites; in situ synthesis; thermodynamic analysis; microstructure; crystal structure;
D O I：
10.1016/j.matlet.2006.09.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel hybrid-reinforced (TiB+La2O3)/Ti composites were in situ synthesized utilizing the reaction between Ti, LaB6 and B2O3 through homogeneous melting in a non-consumable vacuum arc remelting furnace. The thermodynamics of in situ synthesis reaction were analyzed. The phases in the composites were identified by X-ray diffraction (XRD) and the microstructures of the composites were examined by optical microscope (OM), backscattered scanning electron microscope (SEM) and field-emission SEM. Three kinds of reinforcements were found in the composites: La2O3 particles (diameter: similar to 2 mu m), TiB whiskers (width: similar to 3 mu m) and TiB plates (thickness: similar to 1.5 mu m). The reinforcements' sizes were fine and they were homogeneously distributed in the matrix. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2368 / 2372
页数：5
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