原位自生成陶瓷相增强铝基复合材料的研究  

Study on Al Matrix Composites Reinforced by In situ Formation Ceramics Phases

作　　者：孙继兵[1] 李国彬[1] 安雅琴 郭全梅[1] 

机构地区：[1]河北工业大学材料学院,天津300132

出　　处：《河北工业大学学报》2000年第6期93-96,共4页Journal of Hebei University of Technology

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.

关 键 词：原位复合材料 物相组成 抗压强度 磨擦磨损 陶瓷相 铝基复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程]