Method of forming an abrasive compact of cubic boron nitride

US3944398A · kind A · utility

Inventor

• Frank Bell · Johannesburg, ZA

Key dates

• Filing date: Aug 13, 1974
• Grant date: Mar 16, 1976
• Expiry date: Aug 13, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B14/32
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

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.