界面掺杂石墨烯的Ti-ZrO2双层复合材料制备及性能研究  

Preparation and Properties of Ti-ZrO2 Bilayered Composites with Interfacial Doping Graphene

作　　者：鲜勇 刘伟 陈立明 丁义超 王静 刘瑶 Xian Yong;Liu Wei;Chen Liming;Ding Yichao;Wang Jing;Liu Yao(School of Materials Engineering,Chengdu Technological University,Chengdu 611730,Sichuan,China)

机构地区：[1]成都工业学院材料工程学院,四川成都611730

出　　处：《钢铁钒钛》2020年第2期38-41,共4页Iron Steel Vanadium Titanium

基　　金：四川省科技厅项目(2018JY0278);教育部春晖计划项目(Z2017064);四川省教育厅项目(17ZB0033)。

摘　　要：通过界面掺杂石墨烯,采用1 200℃和10 MPa的真空热压烧结参数,制备出Ti-ZrO2双层复合材料,使用拉伸强度表征界面结合强度,X射线衍射(XRD)分析界面物相,扫描电镜(SEM)分析界面元素分布,结果表明:石墨烯在界面上不能稳定存在,也没形成碳化钛,而是固溶到钛和氧化锆的晶格中,起到了阻碍钛和氧化锆相互扩散的作用,避免了TiO2和ZrTiO4的形成,界面呈扩散结合的状态,强度可达52.1 MPa±3.8 MPa。Ti-ZrO2 bilayered composite was synthesized by vacuum hot pressing sintering under 1200℃and 10 MPa through interfacial doping of graphene.The interfacial bonding was characterized by tensile strength.The interfacial phase compositions and element distributions were analyzed by X-ray diffraction(XRD)and scanning electron microscopy(SEM),respectively.The results show that graphene could not exist stably on the interface,nor form titanium carbides.Instead,it dissolves into the lattices of titanium and zirconia,which hinders the mutual diffusion of titanium and zirconia,avoiding the formation of TiO2 and ZrTiO4.The interface is under the state of diffusion bonding with the strength reaching 52.1 MPa±3.8 MPa.

关 键 词：Ti-ZrO2双层复合材料 界面掺杂 石墨烯 真空热压烧结 界面结合强度 

分 类 号：TF823[冶金工程—有色金属冶金] TG148[一般工业技术—材料科学与工程]