Sintered SiC is manufactured from pure SiC powder with non-oxide sintering aids. Conventional ceramic forming processes are used and the material is sintered in an inert atmosphere at temperatures as much as 2000ºC or better. IPS Ceramics has a protracted history of supplying cordierite kiln household furniture and other ceramics https://x.com/Anumhsite/status/1809236320428138621