(1. 浙江大学 材料科学与工程学系, 杭州 310027;
2. 浙江大学 分析测试中心, 杭州 310027;
3. 中南大学 粉末冶金国家重点实验室, 长沙 410083)
摘 要: 以超声波低温化学镀的方法在纳米Si3N4粉末表面得到了均匀的钴磷合金镀层。在平行对比实验的基础上, 提出了获得良好钴磷合金镀层的最佳镀液组成和操作条件, 并对得到的复合粉末进行了能谱成分分析、 X射线衍射相分析、 TEM形貌及衍射分析。 结果表明, 所得到的粉体镀层均匀, 分散性好。在实验中超声波的引入降低了反应温度, 实现了氮化硅的常温化学镀。
关键字: 化学镀;氮化硅; 钴磷合金膜; 金属复合陶瓷粉
(1. Department of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China;
2. The Test Center Laboratory, Zhejiang University, Hangzhou 310027, China;
3. State Key Laboratory for Powder Metallurgy,
Central South University, Changsha 410083, China)
Abstract:The surface of nano-Si3N4 podwer was covered successfully with Co-P alloy cladding by low temperature electroless plating in ultrasonic wave.The best composition of electroless plating solution and reaction condition were optimized by comparison experiments.The composite powder was analyzed by EDX, XRD and TEM.The result indicates that the cladding of composite powder is of high uniformity and dispersion.
Key words: electroless plating; Si3N4; Co-P alloy coating; metal composited ceramic