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A gold-chromium-cobalt alloy for sliding contacts


A gold base alloy has been developed which can be precipitation hardened to make it suitable for use in sliding contacts. It is hard, strong and wear-resistant and has a low resistivity as well as a low contact resistance. The temperature coefficient of resistance can be varied and can be made low or zero at temperatures in the range 0 to 100°C. Its development is summarised and its properties compared with those of alloys generally used for sliding contacts.


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Brandes, E.A. A gold-chromium-cobalt alloy for sliding contacts. Gold Bull 8, 73–79 (1975).

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  • Solder Joint
  • Contact Resistance
  • Discontinuous Precipitation
  • Pure Gold
  • Quaternary Alloy