Ti(C_(1-x)N_x)粉末制备工艺研究  

Study on Preparation Technology of Ti(C_(1-x)N_x) Powder

作　　者：汪晓[1] 

机构地区：[1]湖南有色中央研究院有限公司,湖南长沙410200

出　　处：《硬质合金》2010年第3期139-143,共5页Cemented Carbides

摘　　要：研究了碳热还原反应制备Ti(C1-xNx)时,原料成分C/Ti配比、反应温度、保温时间、氮气流量等因素对x值的影响。根据金属陶瓷产品的性能要求,通过准确控制这些因素,可制备出成分优良的不同Ti(C1-xNx)陶瓷粉末。制备了三种C﹑N成分含量的Ti(C1-xNx)粉末,并分别通过XRD衍射和SEM电镜扫描研究了它们的组织结构与形貌特征,找出了x值对Ti(C1-xNx)粉末晶格常数的影响规律,随着Ti(C1-xNx)中固溶N的含量的增多,其晶格常数逐渐变小。When the Ti（C1-xNx） was prepared by carbothermal reaction, the influence of C/Ti ratio in raw materials, reaction temperature, holding time and N2, flow on the x value was studied. Different Ti Ti（C1-xNx） powder with good composition was synthesized by controlling the governing factors for the performance requirements of cermet. Three kinds of Ti Ti（C1-xNx） powder with different content of C and N were obtained by this technology, then their microstructure and surface topography were studied by XRD and SEM tests for researching the influence of x value on the lattice parameter of TiTi（C1-xNx） The results show that the lattice parameter decreas- es with increasing content of solid dissolved nitrogen in Ti（C1-xNx）.

关 键 词：Ti(C1-xNx) 总碳 游离碳 固溶体 晶格常数 

分 类 号：TF123.23[冶金工程—粉末冶金]