氮化碳基陶瓷刀具材料的制备与力学性能研究  

Sintering and Mechanics Properties of C_(3)N_(4) Based Ceramic Tool Materials

作　　者：张岩 黄传真[1,2] 刘含莲 ZHANG Yan;HUANG Chuanzhen;LIU Hanlian(Center for Advanced Jet Engineering Technologies(CaJET),Key Laboratory of High-efficiency and Clean Mechanical Manufacture(Ministry of Education),School of Mechanical Engineering,Shandong University,Jinan,250061;School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei,066004)

机构地区：[1]先进射流技术研究中心,高效清洁机械制造重点实验室(教育部),国家机械工程实验教学示范中心(山东大学),山东大学机械工程学院,济南250061 [2]燕山大学机械工程学院,秦皇岛066004

出　　处：《中国机械工程》2023年第3期352-358,368,共8页China Mechanical Engineering

基　　金：山东省自然科学基金重大基础研究项目(ZR2018ZA0401)。

摘　　要：采用热压烧结工艺,以Ti(C,N)为添加相,以Mo、Ni和Co为金属相,成功制备了氮化碳(C_(3)N_(4))基陶瓷刀具材料,测量了其断裂韧度、抗弯强度和维氏硬度,分析了其微观组织。结果表明,在烧结温度为1600℃、保温时间为45 min和烧结压力为32 MPa的工艺条件下,Ti(C,N)质量分数为35%、Ni-Co质量分数为8%的C_(3)N_(4)基陶瓷刀具材料力学性能最优。合适的Ti(C,N)含量能细化C_(3)N_(4)晶粒、提高烧结密度、改善力学性能,合适的Ni-Co含量能使微观组织细小均匀。A new type of composite ceramic tool material was developed with C_(3)N_(4)as matrix,Ti(C,N)as additive phase and Mo,Ni,Co as metal phase.By hot press sintering,C_(3)N_(4)based ceramic tool materials were sintered.The fracture toughness,flexural strength and vickers hardness of the composites were measured and the microstructure was analyzed.The results show that the C_(3)N_(4)based ceramic tool material containing 35%Ti(C,N)and 8%Ni-Co,which was sintered under the sintering temperature of 1600℃,duration time of 45 min and sintering pressure of 32 MPa,have the optimum mechanics properties.The appropriate content of Ti(C,N)may refine crystal grains of C_(3)N_(4),increase sintering density,and improve mechanics properties.The microstructure may be fine and uniform with appropriate Ni-Co contents.

关 键 词：C_(3)N_(4)基陶瓷刀具材料 力学性能 微观组织 组分含量 烧结工艺 

分 类 号：TG711[金属学及工艺—刀具与模具]