不同过程控制剂对TiC基金属陶瓷的影响  

Effects of different process control agents on TiC-based cermets

作　　者：刘少存 熊永禄 LIU Shaocun;XIONG Yonglu(Department of Materials Science and Engineering, College of Chemistry and Materials, Longyan University, Longyan 364012, China;Fujian QL Metal Fiber Co., LTD, Longyan 364012, China)

机构地区：[1]龙岩学院化学与材料学院材料科学与工程系,福建龙岩364012 [2]福建强纶新材料股份有限公司,福建龙岩364012

出　　处：《福建工程学院学报》2020年第3期246-249,287,共5页Journal of Fujian University of Technology

基　　金：龙岩经开区奇迈科技创新基金。

摘　　要：采用粉末冶金法制备了TiC-10%Mo-20%Ni金属陶瓷,研究了不同过程控制剂对组织性能的影响,采用Rietveld全谱拟合法对X射线衍射图谱进行分析,金属Mo和Ni与TiC发生固溶反应,形成了典型的芯-环结构,选用正己烷为过程控制剂时,在1450℃烧结金属陶瓷的硬度最高达到1432HV30,断裂韧性为10.47 MPa·m^1/2。TiC-10%Mo-20%Ni cermet was prepared by powder metallurgy.The effect of different process control agents on its microstructure and properties were studied.Its X-ray diffraction patterns were analyzed by Rietveld full spectrum fitting.The solid solution reaction of Mo and Ni to TiC resulted in the formation of a typical core-ring structure.With n-hexane as the process control agent,the cermet sintered at 1450℃exhibits maximum hardness of 1432HV30 and fracture toughness of 10.47 MPa·m^1/2.

关 键 词：金属陶瓷 过程控制剂 性能 微观结构 

分 类 号：TF124[冶金工程—粉末冶金]