A hardware review of electrical contact aging and performance in electromechanical stronglinks
Conference
·
OSTI ID:634129
- Sandia National Labs., Albuquerque, NM (United States)
- Allied Signal Federal Manufacturing and Technology, Kansas City, MO (United States)
Contacts from the functional switch assembly have been examined for a series of MC2969 stronglinks varying from 9 to 14 years of age. Wear tracks are apparent on the contacts as a result of oxide removal by wiping action as the switch is exercised. Typical contaminants observed on the contacts include C, O, S, Cl, F and Si, all of which vary with position on the contacts. All of the contacts show segregation of Ag into the near-surface region. Measurement of the local contact resistance on the ends of the contacts provide resistance values that are reasonable for this material, but with variation among contacts as a result of changes in the local surface chemistry.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 634129
- Report Number(s):
- SAND--97-2007C; CONF-970982--; ON: DE98000198; BR: DP0401017
- Country of Publication:
- United States
- Language:
- English
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