Cotronics Rescor® 310M is a machinable ceramic block.
It has a very low thermal expansion and conductivity.
It is resistant to severe thermal shock up to 1650°C. It is composed of fused Silica Ceramic.
This product is available in 110 x 150 x 220mm, 110 x 230 x 300mm and 110 x 300 x 450mm.
Final Advanced Materials offers machinable porous silica that can meet your application requirements.