钛精矿制备Fe-TiCN金属陶瓷的研究  

Fe-TiCN cermet preparation by titanium concentrate

作　　者：陈敏[1] 肖玄[1] 汤爱涛[2] 

机构地区：[1]攀枝花学院材料工程学院,四川攀枝花617000 [2]重庆大学材料科学与工程学院,重庆400044

出　　处：《有色金属科学与工程》2015年第5期69-72,134,共5页Nonferrous Metals Science and Engineering

基　　金：四川省应用基础研究项目(2014JY0132);攀枝花市科技支撑项目(2013CY-G-7;2014CY-G-26-1)

摘　　要：以钛精矿和石墨通过碳热还原法制备的Fe-Ti CN复合粉为原料,加入少量的镍、钼添加剂通过热压烧结制备Fe-Ti CN金属陶瓷.结合XRD、SEM&EDS、化学分析以及力学性能检测等方法研究Fe-Ti CN金属陶瓷成分和组织对其力学性能的影响.结果表明,Mo、Ni的添加对Fe-Ti CN金属陶瓷组织有细化作用,当Mo、Ni添加量分别为2.5%时金属陶瓷的综合力学性能最佳.Fe-TiCN cermets were prepared with the addition of small amount of Mo and Ni via hot pressing technology.The Fe-TiCN composite powders were prepared via carbothermic reduction of titanium concentrate. The effects of composition and microstructure on the mechanical properties of Fe-TiCN cermets were studied with XRD, SEM＆EDS, chemical analysis and mechanical properties testing. The results show that the Mo and Ni addition could refine the microstructure of the Fe-TiCN cermets. When the addition of Mo and Ni is 2.5 %, respectively, the mechanical properties of Fe-TiCN cermet is optimal.

关 键 词：Fe-TiCN复合粉 金属陶瓷 组织 硬度 抗弯强度 

分 类 号：TF125.3[冶金工程—粉末冶金] TG148[冶金工程—冶金物理化学]