【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。更多还原

【Abstract】 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.更多还原