Pressureless sintering of boron carbide ceramics

Abstract

Densification of boron carbide (B4C) was studied by pressureless sintering at temperatures ranging from 2108° to 2226°C with Al gas and Si compound gas derived from SiC. High purity boron carbide compacts attained a bulk density of a nearly full density (2.455 g/cm3) after being sintered at 2226°C.