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Preparation and properties of TiC/Ti3SiC2 composites
Author(s): 
Pages: 45-48
Year: Issue:  6
Journal: Ordnance Material Science and Engineering

Keyword:  TiC/Ti3SiC2复合材料热压烧结相组成显微结构力学特性;
Abstract: 以粉末Ti,Si,TiC和炭黑为原料,采用反应热压烧结法制备TiC/Ti3SiC2复合材料.借助XRD和SEM研究TiC含量对TiC/Ti3SiC2复合材料相组成、显微结构及力学特性的影响.结果表明:通过热压烧结可以得到致密度较高的TiC/Ti3SiC2复合材料;引入TiC可以促进Ti3SiC2的生成,当引入TiC的质量分数达30%,TiC/Ti3SiC2复合材料的弯曲强度和断裂韧性分别为406.9 MPa,3.7 MPa·m1/2;复合材料中Ti3SiC2相以穿晶断裂为主,TiC晶粒易产生拔出.
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