Process for preparing polycrystalline CBN ceramic masses and res

Details Process for preparing polycrystalline CBN ceramic masses and res Process for preparing polycrystalline CBN ceramic masses and res

1992-12-01

1994-06-14

Green, Anthony

Compositions: ceramic

Ceramic compositions

Refractory

51307, C04B 3558

Patent

active

053209885

ABSTRACT:
Disclosed is a process for preparing sintered polycrystalline CBN/ceramic conjoint masses in an HP/HT process which comprises subjecting a mixture of GBN and one or more of a ceramic material or metal which reacts with BN to form a ceramic material, to HP/HT conditions for inducing conversion of said GBN to CBN, inducing conversion of any of said metal to its corresponding metal ceramic, and forming said CBN/ceramic conjoint mass.

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