金刚石/铝复合材料表面镀覆工艺研究  

Study on Surface Coating Process of Diamond Alumium Composites

作　　者：付银辉 李元朴 何国华 杨显涛 FU Yinhui;LI Yuanpu;HE Guohua;YANG Xiantao(Chengdu Siwei high-tech Industrial Park Co.,Ltd.,Chengdu 611731,China;The 29th Research Institute of CETC,Chengdu 611731,China)

机构地区：[1]成都四威高科技产业园有限公司,四川成都611731 [2]中国电子科技集团公司第二十九研究所,四川成都611731

出　　处：《电子机械工程》2022年第6期52-55,64,共5页Electro-Mechanical Engineering

摘　　要：为了改善金刚石/铝复合材料表面的焊接性能,通过SEM-EDS、数字显微镜、粗糙度检测仪、接触角测量仪和热振、高温烘烤等检测方法,研究了活化、两次化学镀镍工艺对金刚石/铝复合材料表面形貌、成分、粗糙度、润湿性和焊接性能等的影响。结果表明,采用浸锌活化后进行一次镀镍、钯离子活化后进行二次镀镍、最后电镀金的方式可以实现金刚石/铝复合材料表面沉积连续完整的镀金层,镀层粗糙度可控制在0.4~0.7μm,结合力可耐400?C高温,满足金锡共晶焊接使用要求。In order to improve the weldability of diamond aluminum composities,effects of activation and twice nickel coating on the surface morphology,composition,roughness,wettability and weldability,etc.of diamond aluminum composites are studied by SEM-EDS,digital microscope,roughness tester and contact angle tester and by means of thermal vibration and baking under high temperature.The results show that a continuous and complete gold coating layer can be deposited on the surface of diamond aluminum composites by means of zinc immersion activation for primary electroless nickel coating,ion palladium activation for secondary nickel coating and then electroless gold coating.The coating layer roughness can be controlled at 0.4 to 0.7μm and the bonding force can withstand high temperature of 400?C,which meets the requirements of gold tin eutectic welding.

关 键 词：金刚石/铝复合材料 化学镀镍 浸锌活化 钯离子活化 

分 类 号：TB331[一般工业技术—材料科学与工程]