silundum
Si*lun"dum, n. [Trade name] Defn: A form of silicon carbide, produced in the electric furnace, possessing great hardness, and high electrical resistance, and not subject to oxidation below 2880º F., or 1600º C.
Si*lun"dum, n. [Trade name] Defn: A form of silicon carbide, produced in the electric furnace, possessing great hardness, and high electrical resistance, and not subject to oxidation below 2880º F., or 1600º C.