摘要
采用粉末冶金法成功制备了原位生成陶瓷相增强 Ａｌ基复合材料．应用 Ｘ射线衍射仪进行了物相组成测试，发现含１０％～２０％（重量百分比）ＳｉＯ２复合材料的最终物相均为ＭｇＡｌ２Ｏ４、 ＭｇＯ、 Ｍｇ２Ｓｉ、 Ｓｉ和Ａｌ．研究了ＳｉＯ２含量对复合材料硬度、密度、电导率、抗压强度、摩擦磨损等性能的影响表明，随ＳｉＯ２含量的增加，复合材料的硬度和密度增加，电导率、抗压强度和体积磨损量减小，而摩擦系数却增加．
Al matrix composites reinforced by in situ ceramics phases have been fabricated by powder metal- lurgy process. The phrases compositions of the composites were investigated by X-ray diffractometer, it was shown that the phases compositions of the composites containing 10-20 wt%SiO2 are same, which consist of MgA1O4. MgO. Mg2Si. Si and Al. Then the effects of SiO2 content on the properties such as hardness, density. conductivity, compressive strength and friction wear of the composites were also studied, it was shown that with increasing SiO2 content, the hardness and the density increase, the conductivity, the compressive strength and the volume loss all decrease, but the friction factor increases.
出处
《河北工业大学学报》
CAS
2000年第6期93-96,共4页
Journal of Hebei University of Technology
