Processing of Sapphire by Cylindrical Steel in Silicon Oxide Suspension

Abstract

Processing of the sapphire is difficult because of its high hardness. The sapphire is stable material, however, it is known that chemical reaction is occurred with silicon oxide under high temperature and high pressure. In this study, using this phenomenon, a circular groove processing of the sapphire by a cylindrical steel in silicon oxide suspension. As a result, the sapphire was processed to circular groove shape. Its outer diameter was 4mm, inner diameter was 2mm and depth was about 70μm for 30minutes processing.