Title: Method of forming an abrasive compact of cubic boron nitride

Abstract: An abrasive compact comprising diamond or cubic boron nitride or mixtures thereof held in a matrix of a refractory substance and a substance which dissolves the abrasive particle to at least a limited extent. The compact may be made by subjecting a powdered mixture of the ingredients to conditions of temperature and pressure at which the abrasive particle is crystallographically stable and the solvent substance acts to dissolve the abrasive particle. The refractory substance and solvent substance are preferably so chosen that during compact manufacture there is interaction resulting in the formation of a hard material.

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Inventors: Bell, Frank Rutherford

Application Number: 496957
Filing Date: 1974-08-13
Publication_date: 1976-03-16
Assignee:
Primary Class(es): 51/307 51/309
Other Classes:
US Patent Ref:

2947124	Aug, 1960	Madigan	51/307.
2978850	Apr, 1961	Gleszer	51/307.
3233988	Feb, 1966	Wentorf et al.	51/307.
3684466	Aug, 1972	Petrone	51/298.
3852049	Dec, 1974	Hibbs et al.	51/309.

Other Refs:
Primary Examiner: Arnold, Donald J.
Assistant Examiner:
Attorney: Young & Thompson