化学镀Ni-P合金层表面涂覆溶胶-凝胶的研究  

A Study on Ni-P Electroless Plating Layer With Sol-Gel Coating

作　　者：朱立群[1] 丁学谊[1] 刘孟兰 王建华[1] 

机构地区：[1]北京航空航天大学

出　　处：《中国表面工程》1999年第1期29-31,36,共4页China Surface Engineering

摘　　要：在化学镀非晶态Ｎｉ－Ｐ合金镀层表面涂覆溶胶－凝胶涂层，用来封闭镀层表面沉积过程中产生的针孔等缺陷，经过溶胶－凝胶涂层耐浓硝酸试验、５％ＮａＣｌ盐水浸渍试验，以及溶胶－凝胶涂层抗高温氧化性试验，得出结论：在化学镀Ｎｉ－Ｐ合金镀层表面涂覆溶胶－凝胶涂层，可以明显提高化学镀Ｎｉ－Ｐ合金镀层在硝酸、５％ＮａＣｌ盐水中的耐蚀性；在 ５００℃高温下，经过 １５０ｈ氧化处理，表面涂覆溶胶－凝胶涂层的抗高温氧化性可提高 ４倍。The authors applied the amorphous Ni-P electroless plating layer with Sol-Gel coating to seal the pin-holes defect usually occurred in the depositon process, in order to increase its corrosion-resistance and ability to resist the high temperature oxidation. The experiments showed that the plating layer with additional Sol-Gel coating can improve the corrosion-resistance of the former in nitric acid and 5% NaCl solution, and its high temperature oxidation-resistance can be increased 4 times after 150h oxidation treatment at 500C.

关 键 词：化学镀 耐蚀性 溶胶-凝胶 镀镍 表面涂覆 

分 类 号：TQ153.12[化学工程—电化学工业]