原位合成法制备Cu-Al_2O_3复合材料及其性能研究  

Study on In-situ Synthesis of Cu-Al_2O_3 Composites and Their Performance

作　　者：丁飞[1] 凤仪[1] 钱刚[1] 王秀娟[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009

出　　处：《材料导报》2014年第8期69-73,共5页Materials Reports

基　　金：国家自然科学基金(91026018)

摘　　要：为改善Al2O3颗粒的分散性,提高Al2O3颗粒与Cu基体的结合力,采用原位合成法制备Al2O3弥散强化铜基复合材料,并研究了Al2O3含量变化对复合材料性能的影响。结果表明,复合材料的相对密度和导电性随着Al2O3含量的增加而下降,而硬度随Al2O3的增加而增加。与外加法相比,原位合成法制备的Al2O3弥散强化Cu基复合材料在提高硬度的同时,仍能保持很好的导电性。In order to improve the dispersivity of Al2O3 particles,and increase the adhesion between Al2 O3 particles and Cu,a facile method for the in situ synthesis of Al2 O3 dispersion-strengthened Cu materials was carried out.The experimental result shows that the relative density and electroconductivity of the composites are decreased along with the increase of the content of Al2O3,which in turn enhances the hardness of the composites.Compared with the method of external reinforcement,Al2 O2 dispersion-strengthened Cu materials prepared by the method of in situ synthesis possess stronger hardness,while remaining the superior electroconductivity.

关 键 词：原位合成法 AL2O3 铜基复合材料 性能 

分 类 号：TB331[一般工业技术—材料科学与工程]