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
    1.
    发明授权
    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 失效
    多晶CIBIC系统的硼酸盐和多晶硅系统的复合物和其他硬质材料的制造及其制造方法

    公开(公告)号:US3852078A

    公开(公告)日:1974-12-03

    申请号:US21156471

    申请日:1971-12-23

    Abstract: 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.

    Abstract translation: 本发明提供了多晶立方氮化硼和多晶立方氮化硼和其它硬质材料的基本上均匀的复合材料的结合体或致密体,例如金属硼化物,例如硼化钛和硼化锆,共价或金属催化剂,例如硼 碳化物,碳化硅,钛,碳化物,碳化钨和碳化铬,金属氮化物,例如氮化钛,氮化钽,氮化硅和氮化铝,金属氧化物如氧化铝和二氧化硅,复合氧化物如石榴石和玛瑙,以及 钻石。 此外,本发明提供了获得这些材料的接合体的方法,其包括将六方晶系氮化硼粉末或六方晶系氮化硼粉末和立方体系氮化硼晶体粉末或上述硬质材料的粉末的混合物 高温高压。

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