Element comprising at least one sliding surface having a coating for use in an internal combustion engine or a compressor
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United States of America Patent
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Oct 3, 2017
Grant Date -
Oct 30, 2014
app pub date -
May 28, 2012
filing date -
May 27, 2011
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Abstract
An element with at least one slide surface with a coating for use on an internal combustion engine may include a base of a metallic alloy and at least one inner surface provided with a hard ceramic coating generated by physical vapor deposition. The element may include a porosity with a rate lower than 2 percent by volume, a Vickers hardness ranging from 1500 to 3000HV, and a compressive inner tension lower than 500 MPa.
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