汽车继电器中氧化银锡触点腐蚀

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts Pub Date : 1993-09-27 DOI:10.1109/HOLM.1993.489661

C. Leung, A. Lee

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引用次数: 14

摘要

研究了一种用于汽车直流继电器的氧化银锡触点材料的腐蚀性能，并将其作为灯载开关中电流和寿命周期的函数进行了评估。对侵蚀表面进行了分析，提出了基于传递界面断裂的侵蚀机理，以解释氧化银锡接触材料的接触电阻、材料转移和焊接性能。在氧化银锡中，由于较弱的沉积/阴极界面导致了颗粒的分层，颗粒和坑的形成很小。

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Silver tin oxide contact erosion in automotive relays

The erosion properties of a silver tin oxide contact material used in automotive DC relays were evaluated as a function of current and life cycles in lampload switching. The eroded surfaces were analyzed and an erosion mechanism based on transfer interface fracture was presented to explain the contact resistance, material transfer and welding properties of the silver tin oxide contact material. Pip and crater formation in silver tin oxide are small because of a weak deposit/cathode interface that resulted in delamination of pips.

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Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts

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