Research on mechanical alloying and sintering of TiC/Ti powders

作     者：Sun Jinfeng,Li Xiaopu,Wang Mingzhi,Zhao Yucheng (State Key Laboratory of Metastable Materials Science & Technology,Yanshan University, Qinhuangdao 066004,Hebei,China) 

出 版 物：《金刚石与磨料磨具工程》 (Diamond & Abrasives Engineering)

年 卷 期：2008年第28卷第S1期

页      面：168-171页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：binder TiC sintering nonstoichiometric compound hardness 

摘      要：In order to improve the sintering activity of TiC which was usually added into the binder of polycrystalline diamond(PCD) and polycrystalline cubic boron nitride(PCBN),the powders of TiC and Ti mixed as molar ratio of TiC:Ti = 1:0.3 were treated by mechanical *** structure and the morphology of the milled powders were analyzed by X-ray diffraction(XRD) and scan electron microscope(SEM), *** milled powders were sintered by cubic hinge *** structure of the sintered sample was analyzed by X-ray diffraction and the hardness was *** results showed that the grain size of the TiC and the Ti powders were decreased,as the milling time increased,and the nonstoichiometric compound of TiC_x was *** sintering activity of the TiC/Ti powders treated by mechanical alloying increased *** hardness of the sintered sample improved from 829.2 HV for the raw powders to 2587.37 HV for the powders mechanical alloyed 20 hours.