用于超导谐振腔的铅–锡合金电镀工艺  

Lead–tin alloy electroplating applied to superconducting resonator

作　　者：朱飞[1] 郑健[1] 彭朝华[1] 李爱玲[1] 周立鹏[1] 胡跃明[1] 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413

出　　处：《电镀与涂饰》2017年第17期920-923,共4页Electroplating & Finishing

摘　　要：通过赫尔槽试验研究了镀液中主盐、甲基磺酸、OP-10的质量浓度以及电流密度对紫铜上电镀Pb–Sn合金的影响,得到最佳配方和工艺条件为:甲基磺酸铅48~96 g/L,甲基磺酸锡6.5~13.0 g/L,甲基磺酸50~200 g/L,OP-10 5 g/L,对苯二酚1 g/L,电流密度0.135~3.077 A/dm^2。在最优工艺条件下所得Pb–Sn合金镀层光亮、致密,晶粒大小均匀,机械稳定性良好,在7.2 K低温下的电阻接近零,呈超导态,满足超导谐振腔的性能要求。The effects of mass concentrations of main salts, methanesulfonic acid and OP-10 as well as current density on Pb-Sn alloy electroplating were studied by Hull cell test. The optimal bath composition and process conditions were obtained as follows： lead methanesulfonate 48-96 g/L, tin methanesulfonate 6.5-13.0 g/L, methanesulfonic acid 50-200 g/L, OP-10 5 g/L, hydroquinone 1 g/L, and current density 0.135-3.077 A/dm^2. The Pb-Sn alloy coating obtained under the optimal conditions is bright and compact, featuring uniform grain size and good mechanical stability. The alloy coating is in superconducting state with a resistance close to zero at a temperature of 7.2 K, meeting the performance requirements of superconducting resonator.

关 键 词：超导谐振腔 电镀 铅—锡合金 甲基磺酸盐 赫尔槽试验 机械稳定性 

分 类 号：TQ153.2[化学工程—电化学工业]