稀土Ce对新型铜基结合剂金刚石节块性能的影响  

Effect of Ce on the properties of new copper- matrix bonding diamond tool bits

作　　者：吴颖[1] 

机构地区：[1]四川文理学院物理与机电工程学院,四川达州635000

出　　处：《重庆文理学院学报（社会科学版）》2016年第2期6-9,共4页Journal of Chongqing University of Arts and Sciences（Social Sciences Edition)

基　　金：四川文理学院科研项目(2014Z006Y)

摘　　要：通过抗弯强度测试、显微硬度和扫描电镜研究新型铜基结合剂Cu53Sn21Fe20Ni6中添加Ce元素后组织和性能的变化.结果表明:稀土Ce O2的加入对结合剂胎体的各项性能及其组织的强化作用并不明显,反而不利于提升结合剂对金刚石颗粒的粘结性能和胎体的致密度,尤其是当含量高于0.8﹪时,结合剂烧结性能变差,胎体组织不均匀,但Ce的添加可以提高工具的锋利度和自锐性.当稀土Ce元素的含量低于0.6﹪时,弥散分布在结合剂中,可一定程度地提升胎体的显微硬度和抗弯强度.The effect of Ce elements on the microstructure and properties of the new copper- matrix bonding was studied through the bending strength test,micro- hardness and scanning electron microscope. The results showed that when the adding Ce O2 in new copper- matrix,its’ properties and microstructure weren’t changed significantly,harmful to enhance the fixed control ability and matrix’s density. When the content of Ce O2 is higher than 0. 8﹪,the binder’s sintering performance is poor,and the microstructure is not in uniform. When the content of Ce O2 is lower than 0. 6﹪,Ce O2 dispersed in the matrix,the hardness and bending strength of the matrix to some extent is improved.

关 键 词：CEO2 铜基结合剂 力学性能 显微组织 

分 类 号：TQ164[化学工程—高温制品工业]