NDLI: The effect of silver composition and additives on switching characteristics of silver tin oxide type contacts for automotive inductive loads

Content Provider	IEEE Xplore Digital Library
Author	Chen, Z.K. Witter, G.
Copyright Year	2005
Description	Author affiliation: Chugai USA Inc., Waukegan, IL, USA (Chen, Z.K.; Witter, G.)
Abstract	Four silver tin indium oxide materials with different total oxide content and minor additives have been tested with an automotive inductive load under different conditions by using a model switch. The contact erosion, contact temperature rise, contact resistance and welding force have been measured and analyzed. The results indicate that the total metal oxide content is the predominant factor for all measured characteristics and that the minor addition tellurium (Te) has very little effects only on material transfer under the inductive load testing conditions. The longer electrical endurance testing results show that the short make bounce (<80 /spl mu/s) is the cause of high contact welding strength. The local pip and crater formation is result of making bounce arc erosion and it is always associated with the contact weld. The high contact over-travel can delay the pip and crater formation, thus prolonging the number of contact operations or the contact life.
Sponsorship	Components, Packaging and Manufacturing Technol. Soc. of the Instit. of Electr. and Electron. Eng. Inc
Starting Page	35
Ending Page	41
File Size	535915
Page Count	7
File Format	PDF
ISBN	0780391136
DOI	10.1109/HOLM.2005.1518220
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silver Tin Automotive engineering Contacts Welding Additives Materials testing Switches Force measurement Electrical resistance measurement
Content Type	Text
Resource Type	Article

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