Effect of Grain Size on Microstructure, Properties, and Surface Roughness of Reaction Bonded SiC Ceramics

SiC based ceramics feature high specific stiffness, high thermal conductivity, and low CTE. Reaction bonded SiC ceramics feature the same characteristics, but also benefit from their large size and complex shape capability. The grain size of the SiC phase can largely affect the microstructure, properties, and surface roughness in reaction bonded SiC ceramics. This white paper explains the effects further and their overall impact on these types of ceramics.