Njerwa za silicon carbide ndi zida zokanira zopangidwa makamaka kuchokera ku silicon carbide (SiC). Amakhala ndi kuuma kwa Mohs 9 ndipo amawonetsa kukhazikika bwino motsutsana ndi ma slags acidic. Zomwe zili mu SiC zimachokera ku 72% mpaka 99%. Mitundu yosiyanasiyana imaphatikizapo dongo-lomangika, Si3N4{{9}bonded, Sialon{10}bonded, -SiC-bond, Si2ON2-bonded, ndi njerwa za silicon carbide. Amagwiritsidwa ntchito makamaka pazinthu monga kubwezera zitsulo zopanda chitsulo, zitsulo zotayira aluminium, zomangira ng'anjo yamagetsi, ndi zosinthira kutentha.
Izi ndi zinthu zodzitchinjiriza zomwe zimapangidwa makamaka kuchokera ku silicon carbide, yokhala ndi SiC ya 72% mpaka 99%. Nthawi zambiri, silicon carbide yakuda (yokhala ndi SiC yopitilira 96%) imakhala ngati zopangira; njerwa zimapangidwa kudzera mu njira zophatikizira kulumikiza, kusakaniza, kupanga, ndi kuwombera, kapena popanda kuwonjezera kwa wothandizira. Gawo loyamba la crystalline ndi silicon carbide. Mitundu yayikulu ndi monga oxide-bond, carbon-bonded, nitride-bonded, self-bond, recrystallized, and semi{10}silicon carbide njerwa. Amadziwika ndi mavalidwe abwino kwambiri komanso kusakokoloka kwa nthaka, -kutentha kwambiri{12}}kutentha kwambiri, kukhazikika bwino kwa kutentha kwa kutentha, kukhathamiritsa kwambiri kwa kutentha, ndi kutsika kwa mphamvu ya kukula kwa matenthedwe, amasankhidwa kukhala{13}}zinthu zosagwira ntchito kwambiri.