HIGH POROSITY VITRIFIED SUPERABRASIVE PRODUCTS AND METHOD OF PREPARATION

摘要

A VITRIFIED SUPERABRASIVE PRODUCT INCLUDES A SUPERABRASIVE COMPONENT AND A VITRIFIED BOND COMPONENT IN WHICH THE SUPERABRASIVE COMPONENT IS DISPERSED, WHEREIN THE VITRIFIED BOND COMPONENT DEFINES PORES OCCUPYING GREATER THAN ABOUT 50% OF THE TOTAL VOLUME OF THE VITRIFIED SUPERABRASIVE PRODUCT. THE VITRIFIED SUPERABRASIVE PRODUCT CAN BE IN THE FORM OF A GRINDING TOOL, SUCH AS A GRINDING WHEEL. A SUPERABRASIVE MIXTURE INCLUDES A GLASS POWDER, A SUPERABRASIVE GRIT, A BINDER AND A SILICON CARBIDE. THE MIXTURE CAN BE IN THE FORM OF A GREEN BODY, WHICH IS FIRED UNDER AN ATMOSPHERE AND PRESSURE, AND AT A TEMPERATURE SUFFICIENT TO FORM A POROUS VITRIFIED SUPERABRASIVE PRODUCT.