Low-friction coating production method and sliding method
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United States of America Patent
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Oct 22, 2019
Grant Date -
Dec 21, 2017
app pub date -
Jan 29, 2016
filing date -
Jan 29, 2015
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Abstract
A method including substituting an atmosphere in a space, in which a sliding surface formed of a metal or a ceramic material, and a slid surface are disposed, with a gas atmosphere containing a hydroxyl group-containing compound and at least one of hydrogen and nitrogen, and relatively sliding the sliding surface against the slid surface by a Hertzian contact stress of 1.0 GPa or more in the space under the gas atmosphere containing the hydroxyl group-containing compound at least one of hydrogen and nitrogen. As a result, it is possible to form, on the sliding surface, a low-friction coating that stably exhibits a significantly low friction coefficient, for example, of 10−4 order (less than 0.001).
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