摘要
采用不同于流变铸造和热挤压的特殊工艺,可以较好地克服熔融铝合金与空心玻璃微珠不润湿的困难,使前者能通过珠壁上的破缺充满后者的内腔,形成独特的细观结构,由此制得的材料具有较好的综合机械性能。此工艺可以推广到其它种类的陶瓷颗粒材料,其形成机制包括物理和化学的两个方面。
The problem that the micro-glassball is not wettable in molten aluminium alloys can be solved by a special technology that is different from rheocasting and squeezecasting methods. The metten metal can fill the cavity of the glass ball through the broken place on its wall, and an original micro -structure will be formed. This material has good comprehensive mechanical proper ties and this method can be used to other kinds of ceramic powders. The mechanisms of the formation of this materials have been discussed as well.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
1992年第4期100-105,共6页
Journal of Chongqing University
基金
国家教委基金
关键词
玻璃微珠
金属基
复合材料
铝基
glass microspheres
metallic matrix composites
wettability
