SiC foams produced by gel casting: Synthesis and characterization

TLDR: In this article, the preparation and characterization of the powder suspension using silicon carbide powders has been discussed, which has been recognized as a high performance material and has been shown to be mechanically stronger than polyurethane replica methods.

Abstract: SiC foams were fabricated by gelcasting with a commercially available powder and agar as gelling agent. Ceramic foams processed by gel casting have dense struts and are therefore mechanically stronger than foams produced by the conventional poly-urethane replica method. First, special attention was given to the preparation and characterization of the powder suspension using silicon carbide powders which has been recognized as a high performance material.