原位反应合成双相陶瓷增强铜基复合材料

原位反应合成技术在金属基复合材料制备领域具有显著的技术和经济优势.在分析了国内外原位反应合成金属基复合材料的主要制备工艺的基础上,采用高温自蔓延和热压的方法制备双相陶瓷颗粒增强铜基复合材料,研究了合成条件对材料结构和性能影响的规律.结果表明：与纯铜相比较,所制备的铜基复合材料电导率和热导率保持在80%以上,而耐磨损性能提高了6倍.

In-situ Reaction Synthesis of Dual-phase Ceramic Reinforced Copper-based Composites

Among the preparing methods of ceramic particles reinforced meta1 matrix composites,the in-situ reaction synthesis technology has many technical and economical advantages over other traditional methods obviously.Several principal techniques to prepare metal matrix composites by in-situ reactive synthesis method were analyzed in this paper.Based on the analysis,a kind of preparing by using SHS and HP technique which was combustion and in-situ reaction synthesis of dual-phase ceramic reinforced copper-based composites was given.The impact of preparing condition on the structure and the behavior of the material were also researched.At last,some fundamental characteristics of the copper-based composite were studied,compared with the pure copper this kind of copper-based composite kept the electric conductivity and thermal conductivity above 80 percent, at the same time the wear resistance improved 6 times.