Title :
Cd-free silver alloy for sliding contact
Author :
Shirakawa, Ryotoma ; Suzuki, Satoshi ; Matsuda, Akira ; Shibata, Nobuyuki
Author_Institution :
Furukawa Electric Co. Ltd., Tochigi, Japan
Abstract :
A new silver alloy containing Li and La(ALL alloy) was developed for use as a sliding contact material. This alloy can replace the silver alloy containing 1% of Cd (AgCd1) for light duty sliding contacts because of its high performance. An investigation was conducted on the fretting test to evaluate the required characteristic properties of the sliding contact. Ag-La-In-Ni, Ag-La-In-Sb, Ag-Li-In, and Ag-Li-La alloys were selected for the primary sample test. The Ag-Li-La alloy was found to be the most promising. The ALL alloy exhibits low contact resistance, abrasion resistance and arc resistance compared to AgCd1. The test results of this alloy on a light duty relay tester prove its suitability for relay contact use.<>
Keywords :
abrasion; antimony alloys; circuit-breaking arcs; contact resistance; electrical contacts; indium alloys; lanthanum alloys; lithium alloys; nickel alloys; relays; silver alloys; AgLaInNi; AgLaInSb; AgLiIn; AgLiLa; abrasion resistance; arc resistance; contact resistance; fretting test; light duty relay tester; light duty sliding contacts; relay contact; sliding contact material; Cadmium; Chemical elements; Contact resistance; Costs; Electronic equipment testing; Environmental factors; Immune system; Materials testing; Relays; Silver;
Conference_Titel :
Electrical Contacts, 1992., Proceedings of the Thirty-Eighth IEEE Holm Conference on
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-0576-0
DOI :
10.1109/HOLM.1992.246925
