基体碳种类对C/Cu复合材料界面浸润行为的影响  

Effect of Matrix Carbon Species on Interface Wetting Behavior of C/Cu Composites

作　　者：朱强 张东生 范宇恒 张静[1] 赵红亮[1] ZHU Qiang;ZHANG Dongsheng;FAN Yuheng;ZHANG Jing;ZHAO Hongliang(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;Gongyi Van Yihui Composites Material Co.,Ltd.,Gongyi 451200,China)

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001 [2]巩义市泛锐熠辉复合材料有限公司,河南巩义451200

出　　处：《郑州大学学报（工学版）》2021年第5期100-105,共6页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(51801186);河南省青年人才托举工程项目(2020HYTP019);中国博士后科学基金资助项目(2018M642776)。

摘　　要：采用真空反应浸渗法,分别以碳纤维/树脂碳(C/C)、碳纤维(C_(f))、高纯石墨(Graphite)以及玻璃碳(GC)为基体碳制备了C/Cu复合材料。利用OM、XRD、SEM、EDX等检测分析方法研究了不同的基体碳种类对C/Cu复合材料浸润行为以及界面层组织形貌的影响。结果表明:C_(f)和C/C与Cu-Ti合金基体润湿性较好,接触角分别为56.26°和40.12°,而Graphite和GC与Cu-Ti合金基体不润湿,接触角均大于90°。Cu-Ti合金与C_(f)、C/C良好的润湿性源于熔渗过程中C原子在TixCuy相中反应扩散所生成的TiC界面层能够较好地与C相和Cu润湿,从而有效改善了C/Cu界面润湿性和界面结合状态,其中,基体碳为C_(f)时所生成的TiC界面层厚度最大,且致密均匀。综合考虑基体碳与Cu-Ti合金的润湿行为及界面层组织,4种碳基体制备碳铜复合材料时的优劣顺序为C_(f)、C/C、Graphite、GC。The vacuum reaction infiltration method was used to prepare C/Cu composites with carbon fiber/resin carbon(C/C),carbon fiber(C_(f)),graphite(Graphite),and glassy carbon(GC)as matrix carbon.The OM,XRD,SEM,EDX and other detection and analysis methods were used to study the influence of different matrix carbon on the wetting behavior of C/Cu composites and the microstructure of the interface layer.The results showed that C/C and C_(f) had good wettability with Cu-Ti alloy,and the contact angles were 56.26°and 40.12°,respectively.However,Graphite and GC did not wet with Cu-Ti alloy,and the contact angles were both larger than 90°.The good wettability between Cu-Ti alloy and C/C、C_(f) is mainly because the TiC layer which is formed by reaction-diffusion during the vacuum reaction infiltration can be wetted well with C and Cu,improving the C/Cu interface wettability and interface bonding state.The TiC interface layer is dense and uniform,and had the largest thickness when the matrix carbon is C_(f).Finally,by considering the wetting behavior and the interface layer microstructure,the order of precedence for different carbon matrix is as follows:C_(f)、C/C、Graphite、GC.

关 键 词：基体碳 反应浸渗 界面层 浸渗机制 复合材料 

分 类 号：TG161[金属学及工艺—热处理]