王爱琴,方明,郝世明,谢敬佩

• 1:河南科技大学材料学院
• 2:郑州大学物理工程学院

摘要(Abstract)：

以低膨胀的SiC颗粒为增强体,Al-30Si合金粉为基体材料,对SiCp进行1100℃保温3 h+水洗预处理,通过球磨混料,利用真空热压法制备25SiCp/Al-30Si复合材料,测定了试验材料的力学性能。利用扫描电镜(SEM)和透射电镜(TEM)对试验材料的微观组织形态进行了观察,采用XRD技术对其物相进行了表征,分析了SiCp预处理对试验材料组织及性能的影响。结果表明,热压法制备的复合材料增强颗粒与基体结合良好,界面清晰,无界面反应发生,SiCp经过预处理后复合材料的力学性能得到了提高。并探讨了复合材料的强化机理。

关键词(KeyWords)： 真空热压烧结;复合材料;微观组织;强化机理

Abstract:

Keywords:

基金项目(Foundation): 河南科技大学博士科研启动基金(2008bs025);; 河南省科技创新团队计划

作者(Author): 王爱琴,方明,郝世明,谢敬佩

DOI: 10.13289/j.issn.1009-6264.2012.s2.004

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