. . "15040266-n"^^ . . . "an extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material; crystals of silicon carbide can be used as semiconductors"@en-us . "0"^^ . . . "115040266"^^ . . . "110791025"@en-us . "silicon carbide"@en-us . "0"^^ . "114187023"@en-us . . "silicon carbide"^^ .