Multi-layer coating with cubic boron nitride particles
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United States of America Patent
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Oct 16, 2014
app pub date -
May 29, 2012
filing date -
May 27, 2011
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Abstract
A physical configuration of multiple-layer coatings formed with at least one layer of coating containing cubic born nitride (cBN) particles with one or more layers in composite form containing cBN particles may have a thickness of each individual layer as thin as in the nanometer range, or as thick as in the range of a few microns and even up to tens of microns. The chemistry of the composite layer consists of any individual phase of (a) nitrides such as titanium nitride (TiN), titanium carbonitride (TiCN), and hafnium nitride (HfN); (b) carbides such as titanium carbide (TiC); and (c) oxides such as aluminum oxide (AI2O3) or any combination of the above phases, in addition to cBN particles. The coating or film can be stand-alone or on a substrate.
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