Nano-diamond/Ni复合电刷镀层的组织形貌的研究  

Research on the micro-structure of brush electroplated nickel-based nano-diamond composite coating

作　　者：赵盟月[1] 李颖[1,2] 位星[1] 邹文俊[1] 董企铭[1] 王小品[1] 

机构地区：[1]河南工业大学,郑州450007 [2]上海大学,上海200436

出　　处：《金刚石与磨料磨具工程》2010年第2期63-66,共4页Diamond & Abrasives Engineering

基　　金：2007年度河南省高校杰出科研人才创新工程项目(No.2007KYCX0010)

摘　　要：以45#钢为基体,制备了普通镍镀层和nano-diamond/Ni复合刷镀层,采用扫描电镜、能谱仪、X射线衍射仪和金相显微镜等设备对比研究了两种镀层的组织形貌。金相显微镜和扫描电镜分析结果表明,与普通镍镀层相比,nano-diamond/Ni复合刷镀层的表面更加平整、致密,组织更加细化;nano-dia-mond/Ni复合刷镀层表面呈典型的"菜花头"形状,弥散分布的纳米金刚石被镍包裹。能谱仪分析结果表明,nano-diamond/Ni复合刷镀层中纳米颗粒特征元素C的质量分数为7.37%。X射线衍射分析结果表明,随着纳米金刚石加入量的增加,镀层表面晶粒尺寸逐渐减小。Traditional Ni coating and brush electroplated composite coating of nano-diamond/Ni are prepared respectively on 45# steel matrix.A comparative study of the structure and performance of the two brush electroplated composite coatings is carried out by metallographic microscope,scanning electron microscope（SEM）,energy dispersive spectrometry（EDS） and X-ray diffraction（XRD）.Metallographic microscope and SEM results show that the surface and structure of nano-diamond/Ni brush electroplated composite coating are more smooth and compact than that of Ni coating.And on the surface of brush electroplated composite coatings,which appear to be the typical cluster crystals in a cauliflower shape,nano-diamonds are wrapped by nickel crystal grains.EDS results show that the content of carbon is 7.37% in nano-diamond/Ni brush electroplated composite coating.XRD results show that as the amount of nano-diamond increases,the grain size of coatings becomes smaller.

关 键 词：纳米金刚石 复合电刷镀 组织形貌 

分 类 号：TQ164[化学工程—高温制品工业]