Title: Modifying the surface of cubic boron nitride particles

Abstract: Abrasive particles are prepared by milling cubic boron nitride particles, metal compound and milling balls to smear a coating of the compound on the cubic boron nitride particles and firing the compound-coated boron nitride particles producing a rough granular adherent covering of metal and/or metal boride and/or nitride surface coating chemically bonded to the cubic boron nitride surface by metal boride and/or nitride.

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Inventors: Lee, Minyoung (Schenectady, NY, US)
Szala, Lawrence E. (Scotia, NY, US)
Hibbs, Jr., Louis E. (Schenectady, NY, US)

Application Number: 599942
Filing Date: 1975-07-28
Publication_date: 1977-03-08
Assignee: General Electric Company (Schenectady, NY)
Primary Class(es): 51/295 51/307, 51/309, 427/212, 427/215, 427/217
Other Classes:
US Patent Ref:

3316073	Apr, 1967	Kelso	51/295.
3585013	Jun, 1971	Bruschek	51/295.
3645706	Feb, 1972	Bovenkerk et al.	51/295.
3664819	May, 1972	Siqui et al.	51/295.
3779727	Dec, 1973	Siqui et al.	51/298.

Other Refs:
Primary Examiner: Arnold, Donald J.
Assistant Examiner:
Attorney: Binkowski; Jane M., Cohen; Joseph T., Squillaro; Jerome C.