低体积分数SiC_W/Al复合材料的制备  

Fabrication of SiC_W/Al Composites with Low Whisker Volume Fraction

作　　者：张文龙[1] 王德尊[2] 姚忠凯[2] 顾明元[1] 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200030 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《轻合金加工技术》2005年第1期48-50,共3页Light Alloy Fabrication Technology

摘　　要：提出了一种低体积分数SiCW/Al复合材料的制备方法,将SiCW与铝粉混合制成预制件,再将其与铝基体用挤压铸造法制成复合材料,通过微观组织观察发现,用该方法制备的低体积分数复合材料中晶须分布均匀。经挤压后可使铝粉颗粒和铝基体充分融合。断口观察发现,复合材料中晶须与基体间的结合非常好。In present paper,a method fabrication SiC_W/Al composites with low volume fraction was given.By observing microstructure of the as-fabricated composite,it was found that the whisker distribution in the composite was quite uniform.After extrusion,the aluminum powders existed in the composite have a very good amalgamation with the matrix.By observing fracture surfaces of the extruded composite,it was found that the bonding between the whiskers and the matrix is quite sound.

关 键 词：SICW/AL复合材料 低体积分数 组织 

分 类 号：TB333[一般工业技术—材料科学与工程]