SILICON CARBIDE BODIES

摘要

A self-bonded silicon carbide body produced by siliconising a preformed mixture of particles of carbon and silicon carbide in the beta form has a mean grain size in the range 0.1-5 microns. Such a silicon carbide body may be produced using silicon carbide particles having a mean surface area in the range 05-20 square metres per gram. The silicon carbide particles may be produced by heating a mixture of silica and silicon to generate silicon monoxide vapour and passing the vapour through a bed of particulate carbon.