TiO2-Al-C系热爆合成TiC-Al203/Al复合材料及合成过程

兵工学报 ›› 1999, Vol. 20 ›› Issue (1): 47-50.

TiO2-Al-C系热爆合成TiC-Al203/Al复合材料及合成过程

刘金水、肖汉宁、蒋冰、龙敏、谢贤清

湖南大学，湖南长沙，410082

收稿日期:1997-12-01 修回日期:1998-08-01 上线日期:2014-12-25
通讯作者: 刘金水

Combustion Synthesis of TiC-AL2O3/Al Composite and its Process of Formation from the Ti02-Al-C System

Liu Jinshui, Xiao Hanning,Jiang Bing,Long Min,Xie Xiangqing

Hunan University, Changsha, 410082

Received:1997-12-01 Revised:1998-08-01 Online:2014-12-25
Contact: Liu Jinshui

摘要/Abstract

摘要： 通过对TiO2-Al-C体系反应过程的研究，采用反应热压法制备了原位TiC、Al203粒子复合增强的TiC-Al203/Al复合材料。研究了体系中Al含量对反应合成过程及复合材料致密度的影响，分析了热爆合成TiC粒子的形成机制。研究表明：生成的TiC粒子呈球形，尺寸均匀;且随体系Al含量的提高，TiC 合成反应温度降低，TiC颗粒尺寸减小，复合材料的致密度增加;在35MPa的热压下，复合材料可达到理论密度的95%以上。

关键词: 热爆合成 , 金属基复合材料 , TiC , Al203 , Ti02-Al-C体系

Abstract: Through a study on the reactions occuring in a Ti2〇2-Al-C system, in-situ TiC and Al2O3 particulates reinforced Al composite ( TiC-Al2O3/Al) was formed by ther?mal explosion reaction and hot-pressing. The effect of Al content on the process of syn?thesis and relative density of the composite, and the mechanism of combustion synthesis of TiC particles are studied. These studies show that TiC particles obtained m this ex?periment have a spherical shape and are uniform in size distribution. The temperature of synthesis and the particle size of TiC decreases and the relative density of the composite increases with an increase in the Al content. Under a hot-press pressure of 35MPa, TiC-Al2O3/Al composite with a relative density of more than 95% can be obtained.

Key words: combustion synthesis , metal matrix composits , TiC , Al2O3 , TiO2-AI-C system

刘金水、肖汉宁、蒋冰、龙敏、谢贤清. TiO2-Al-C系热爆合成TiC-Al203/Al复合材料及合成过程[J]. 兵工学报, 1999, 20(1): 47-50.

Liu Jinshui, Xiao Hanning,Jiang Bing,Long Min,Xie Xiangqing. Combustion Synthesis of TiC-AL2O3/Al Composite and its Process of Formation from the Ti02-Al-C System[J]. Acta Armamentarii, 1999, 20(1): 47-50.

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