CNTs/SiCp增强镁基复合材料的力学性能  

Mechanical performance of CNTs/SiCp reinforced magnesium matrix composite

作　　者：李维学[1,2] 王敦栋[1] 戴剑锋[1,2] 徐莺歌[1] 

机构地区：[1]兰州理工大学理学院,甘肃兰州730050 [2]兰州理工大学甘肃省有色金属新材料重点实验室,甘肃兰州730050

出　　处：《兰州理工大学学报》2010年第5期10-13,共4页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(50873047);甘肃省自然科学基金(3ZS062-B25-020)

摘　　要：采用搅拌铸造法制备碳纳米管(CNTs)和碳化硅(SiCp)增强镁材料,并对复合材料的力学性能进行测试,对其显微组织进行观察和分析,以及利用扫描电子显微镜对断口形貌进行表征.结果表明:CNTs和SiCp的加入使镁基复合材料的晶粒细化和强化,镀镍处理后的CNTs与基体有很好的相容性,显著提高复合材料的力学性能.Magnesium matrix composite reinforced with CNTs and SiCp were prepared by means of stir-casting process.The mechanical properties,fractographs and microstructure of the composite were tested,observed,and characterized with universal material tester,optical microscope and SEM,respectively.The results showed that the addition of CNTs and SiCp could refine the grains of the composite and good consistence existed between nickel-plated CNTs and matrix,so that the mechanical performance of the composite was remarkably improved.

关 键 词：镁基复合材料 碳纳米管 碳化硅 力学性能 微观组织 

分 类 号：TB331[一般工业技术—材料科学与工程]