CUBIC BORON NITRIDE COMPACTS

摘要

The cubic boron nitride compact contains a secondary hard phase, which comprises at least one aluminium magnesium boride compound, such as AlMgB₁₄. The aluminium magnesium boride present in the secondary hard phase may consist of AlMgB₁₄ only or a mixture of AlMgB₁₄ and one or more other aluminium magnesium boride compounds. The aluminium magnesium boride compound or compounds may also be doped with elements such as silicon, titanium, molybdenum, tungsten, nickel and iron, or borides, carbides and nitrides thereof.