电源技术2001，Vol.25Issue(2)：88-90,3.
极化时间与电位对铅锡合金钝化层性能的影响
Effects of polarization time and potential on performance of lead／tin passivation layer
闫智刚 1包有富 2胡信国2
作者信息
- 1. 哈尔滨工业大学应用化学系,
- 2. 杭州南都电源有限公司,
- 折叠
摘要
Abstract
Tin could change electronic conductivity of the passivation layer． The relationship between the electronic conductivity and the formation condition of the passivation layer was studied by measuring the electrochemical impedance at different polarization potential and polarization time． When the lead electrode was pola-rized in the region of 700 mV， the polarization resistance increased with time but decreased when tin was alloyed． This can be explained by the increasing formation of semi-conducting PbO and conducting tin oxide． With a potential incursion in the region of 1500 mV， PbOx was formed． Due to the better conductivity of PbOx than PbO， the passivation layer had lower impedance． However， the resistance increased with polarization time． This can be interpreted by the reduction of PbOx to PbO at 700 mV．关键词
极化/电位/铅锡合金/钝化层分类
信息技术与安全科学引用本文复制引用
闫智刚,包有富,胡信国..极化时间与电位对铅锡合金钝化层性能的影响[J].电源技术,2001,25(2):88-90,3.
