Method of producing cubic boron nitride coated material

Details Method of producing cubic boron nitride coated material Method of producing cubic boron nitride coated material

1987-11-30

1988-08-09

Pianalto, Bernard D.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

4272553, 4272557, 4273722, B05D 306

Patent

active

047627298

ABSTRACT:
There are disclosed a cubic boron nitride coated material including a substrate and an outer layer composed principally of cubic boron nitride and formed on a surface of the substrate, comprising an intermediate layer fored of at least one intermediate layer and interposed between the substrate and outer layer, the intermediate between the substrate and outer layer, the intermediate layer or the outermost one of intermediate layers being formed of a layer of at least one nitrogen-containing compound selected from the nitrides and nitroxides of Al, Ga, In and Tl and mutual solid solutions thereof, and a producing method of the same which comprises: providing, on the surface of the substrate, an intermediate layer formed of at least one intermediate layer, the intermediate layer or the outermost one of intermediate layers being formed of a layer of at least one nitrogen-containing compound selected from the group consisting of nitrides and nitroxides of Al, Ga, In and Tl and mutual solid solutions thereof; and causing the outer layer to undergo oriented growth on a face of the layer of the at least one nitrogen-containing compound, the face being densely packed with nitrogen atoms.

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