Low pressure growth of cubic boron nitride films

Details Low pressure growth of cubic boron nitride films Low pressure growth of cubic boron nitride films

1995-10-03

1997-06-17

Turner, Archene

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

428336, 428446, 428698, 428704, 428216, 51295, 51307, 51309, G03G 502

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active

056395515

ABSTRACT:
A method for forming thin films of cubic boron nitride on substrates at low pressures and temperatures. A substrate is first coated with polycrystalline diamond to provide a uniform surface upon which cubic boron nitride can be deposited by chemical vapor deposition.
The cubic boron nitride film is useful as a substitute for diamond coatings for a variety of applications in which diamond is not suitable. any tetragonal or hexagonal boron nitride.
The cubic boron nitride produced in accordance with the preceding example is particularly well-suited for use as a coating for ultra hard tool bits and abrasives, especially those intended to use in cutting or otherwise fabricating iron.

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