化学复合镀镍-磷-氧化铝工艺研究

Studies on electroless composite plating of nickel-phosphorus-alumine

为进一步提高化学镀镍磷合金层的性能 ,在镀液中加入氧化铝粒子制得镍 -磷 -氧化铝复合镀层。研究了镀液中各成分及操作条件对镀速的影响 ,并对镀层的组织结构和性能进行了测试。结果表明 ,该工艺镀液稳定性好 。

The purpose of this study was to further improve the properties of electroless nickel-phosphorus alloy deposits. Electroless nickel-phosphorus-aluminum oxide composite deposits were prepared by the addition of aluminum oxide particles in electroless nickel-phosphorus plating bath. The effect of bath components and plating parameters on plating rate of nickel-phosphorus-aluminum oxide composite deposits was studied, microstructure and properties of nickel-phosphorus-aluminum composite deposits were compared to that of nickel-phosphorus deposits. The results show that nickel-phosphorus alloy deposits are greatly improved in microhardness and corrosion resistance by codeposition proper amount of aluminum oxide particles.