Abstract
Data are reported on friction and wear of oxidized copper in dry air and helium atmospheres. The procedures used for atmosphere control, specimen cleaning, oxide film formation, and film thickness measurement are described in detail. It is shown that inert atmosphere tends to elevate friction above its magnitude in air, and to alter the wear track from a broad, lightly scored track to a deep, narrow groove. Data are also reported on the effects of load, wear, and temperature variation on the friction of oxidized copper.
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