摘要
在金属反应熔渗法(RMI)制备的C/C-ZrC-Cu复合材料上采用大气等离子喷涂法(APS)得到厚度为1.3 mm的W涂层。运用扫描电镜-能谱(SEM-EDS),X射线衍射(XRD)测试技术分析研究了等离子喷涂W与C/C-CuZr复合材料界面相组成。结果表明:C/C复合材料反应熔渗法采用Cu-48.9%Zr(摩尔分数)粉末制备出均匀的熔渗组织,这是因为Zr提高了Cu在1300℃的C/C复合材料中的润湿性,在熔渗过程中生成了正交晶系相Cu_(10)Zr_7。W涂层与C/C-ZrC-Cu复合材料的结合类型以扩散结合为主,其界面区内主要是W和C通过包晶反应生成WC扩散层,反应扩散层厚度约为10 um。
W coating with thickness of 1.3 mm was successfully deposited by the atmosphere plasma spray(APS) technology on C/C-ZrC-Cu composite which was fabricated by reactive metal infiltration(RMI).Phase composition of interface between W coating and C/C-ZrC-Cu composite was investigated using a combination of X-ray diffraction(XRD) and scanning electron microscopy with energy-dispersive X-ray analysis(SEM-EDS).The results show that good performances of C/C-ZrC-Cu composite are obtained by reactive infiltration method with using powders of Cu-48.9% Zr,and Zr element can increase the wettability of Cu in C/C composite at 1300 ℃,the orthorhombic phase Cu10Zr7 is found in the composite.The type of bonding between W coating and C/C-ZrC-Cu composite is diffusion bonding on the main area of the interface.The diffusion bonding of WC layer is produced by peritectic reaction of phase W and C,and the thickness of reaction-diffusion layer is about 10 μm.
作者
周哲
葛毅成
汪沅
龚洁明
易茂中
ZHOU Zhe;GE Yi-cheng;WANG Yuan;GONG Jie-ming;YI Mao-zhong(State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China)
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2018年第11期2257-2265,共9页
The Chinese Journal of Nonferrous Metals
基金
国家重大工程项目(GFZX0101040101-2012C20X)~~
