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MASS OF POLYCRYSTALLINE CUBIC SYSTEM BORON NITRIDE AND COMPOSITES OF POLYCRYSTALLINE CUBIC SYSTEM BORON NITRIDE AND OTHER HARD MATERIALS, AND PROCESSES FOR MANUFACTURING THE SAME
MASS OF POLYCRYSTALLINE CUBIC SYSTEM BORON NITRIDE AND COMPOSITES OF POLYCRYSTALLINE CUBIC SYSTEM BORON NITRIDE AND OTHER HARD MATERIALS, AND PROCESSES FOR MANUFACTURING THE SAME
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机译：多晶立方氮化硼的质量以及多晶立方氮化硼和其他硬质材料的混合物，及其制造工艺
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摘要
This invention gives bonded or compact bodies of polycrystalline cubic system boron nitride and substantially uniform composites of polycrystalline cubic system boron nitride and other hard materials, for example, metal borides, such as titanium boride and zirconium boride, covalent or metallic cabides, such as boron carbide, silicon carbide, titanium, carbide, tungsten carbide and chromium carbide, metal nitrides, such as titanium nitride, tantalum nitride, silicon nitride and aluminum nitride, metal oxides, such as alumina and silica, complex oxide such as garnet and agate, and diamond. Further, this invention provides a process of obtaining the bonded body of these materials which comprises subjecting hexagonal system boron nitride powder, or a mixture of hexagonal system boron nitride powder and cubic system boron nitride crystal powder or powders of the above-mentioned hard materials to high temperatures and high pressures.
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