Cement Field: Used in kilns and preheaters in which high temperatures and chemical corrosion are prevalent. High alumina brick refractories can have two bond techniques, ceramic, and phosphate. Phosphate brick is instantly identified by a phosphorus pentoxide (P2O5) written content on their information sheet of amongst about three% and 6%. https://simonyxwur.wikijournalist.com/113610/about_silicon_carbide_crucible_for_sale