航天器太阳能电池阵互连片钼箔无氰电镀银工艺

采用金属等离子注入方法往航天器太阳能电池阵互连片用钼箔中注入银离子,然后进行无氰电镀银.结果表明,银离子注入能很好地改善钼箔的电镀性能,钼箔上所获镀银层完整、结晶致密、晶粒圆滑而且分布均匀;在镀液中加入硫代氨基脲添加剂后,镀层均匀致密程度进一步提高、晶粒更加细小,所获镀层结合力大为提高,导电性也得到很大地改善.可焊性测试结果表明镀银层的可焊性能达到了要求.在苯并三氮唑(BTA)的乙醇溶液常温钝化自然晾干后再经石蜡钝化,可提高镀银层抗Na2S腐蚀的效果,钝化处理对镀银层及试样的导电性和可焊性影响不大.

Process of non-cyanide silver plating for molybdenum foils used as inter-links of solar cell array system in space vehicle

The silver ions were implanted into the molybdenum foils used as the inter-links of the solar cell array system in the space vehicle first,and then the non-cyanide silver plating was carried out.The results show that silver ions implantation can improve the electroplating performance of the molybdenum foils,and the electroplated silver coatings obtained on the molybdenum foils are complete after silver ions implantation,and the crystal grains are compact,smooth and evenly distributed.When the thiosemicarbaz...