| Ti3SiC2/TiB2复合材料的制备及其组织和力学性能 |
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| 引用本文： | 朱达炎,朱教群,梅炳初,周卫兵.Ti3SiC2/TiB2复合材料的制备及其组织和力学性能[J].武汉理工大学学报,2005,27(12):1-4. |
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| 作者姓名： | 朱达炎 朱教群 梅炳初 周卫兵 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 教育部科学技术研究重点资助项目(02052) |
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| 摘 要： | 以2TiC／Ti／Si／0．2Al／TiB2粉为原料，采用热压烧结工艺成功制备了Ti3SiC2／TiB2复合材料。结果表明：不同TiB2含量的试样中主晶相为Ti3siC2与TiB2两相，没有发现其它杂质相；当复合材料中TiB2的体积分数为10％时，其硬度、抗压强度、弯曲强度、断裂韧性都有显著的提高。经热处理后，Ti3SiC2／10％TiB2复合材料的弯曲强度由367．5MPa
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| 关 键 词： | Ti3SiC2/TiB2 复合材料 热压 力学性能 热处理 |
| 文章编号： | 1671-4431(2005)12-0001-04 |
| 修稿时间： | 2005年8月28日 |
Fabrication Microstructure and Mechanical Properties of Ti3SiC2/TiB2 Composites |
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| ZHU Da-yan,ZHU Jiao-qun,MEI Bing-chu,ZHOU Wei-bing.Fabrication Microstructure and Mechanical Properties of Ti3SiC2/TiB2 Composites[J].Journal of Wuhan University of Technology,2005,27(12):1-4. |
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| Authors: | ZHU Da-yan ZHU Jiao-qun MEI Bing-chu ZHOU Wei-bing |
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| Abstract: | Dense Ti_3SiC_2/TiB_2 composites were successfully fabricated by hot-pressed 2TiC/Ti/Si/0.2Al/TiB_2 powders.The results show that the main phases were Ti_3SiC_2 and TiB_2,no other phases contain.When the TiB_2 content was 10%,the hardness,compressive strength,flexural strength and fracture toughness were remarkably improved.After heat treatment,the flexural strength of Ti_3SiC_2/10%TiB_2 composite increased from 367.5 MPa to 485.1 MPa,which raised by 32%,the hardness increased to 8.2 GPa. |
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| Keywords: | Ti_3SiC_2/TiB_2 composites hot pressing mechanical properties heat treatment |
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