新型金刚石/铜基复合材料粗化液的应用

Application of novel coarsening solution to diamond/copper matrix composite

对金刚石/铜基复合材料表面化学镀预处理过程中的粗化工艺进行了研究,开发了一种JG-01型粗化液,其组成为:亚硝酸钠5 g,氢氧化钠5 g,三乙醇胺0.3 g,过氧化碳酰胺0.4 g,高铁酸钾0.5 g,去离子水88.8 g。采用扫描电镜分析以及结合力、耐热性等测试方法对比研究了该新型粗化工艺和传统粗化工艺对金刚石/铜基复合材料化学镀镍层表面形貌和性能的影响。与传统粗化工艺相比,新工艺对金刚石/铜基复合材料表面具有更好的粗化效果,粗化后得到的镍镀层平整、光亮,结合力和耐热性好。新的粗化工艺有效地解决了传统粗化工艺存在的漏镀以及镀层光亮性、结合力和耐热性差等问题。

The coarsening process for surface of diamond/copper matrix composite during pretreatment prior to electroless plating was studied. A JG-01 coarsening solution composed of sodium nitrite 5 g, sodium hydroxide 5 g, tris（2-hydroxy- ethyl）amine 0.3 g, carbamide peroxide 0.4 g, potassium ferrate 0.5 g, and deionized water 88.8 g was developed. The effects of the novel coarsening process and a traditional coarsening process on the surface morphology and properties of the electroless nickel deposit on the surface of diamond/copper matrix composite was studied by scanning electron microscopy as well as adhesion and thermal resistance tests. Compared with the traditional coarsening process, the novel coarsening process has a better roughening effect for the surface of diamond/copper matrix composite. The nickel deposit obtained after coarsening is level and bright, and has good adhesion and thermal resistance. The novel coarsening process can effectively resolve the problems of skip plating and poor brightness, adhesion, and thermal resistance existing in traditional coarsening orocess.