Isakhiwo se-silicon ye-carbide

Iintlobo ezintathu eziphambili ze-silicon carbide polymorph

Kukho malunga ne-250 ye-crystalline iifom ze-silicon carbide. Ngenxa yokuba i-silicon carbide inoluhlu lwe-polytypes ene-homogeneous ene-crystal structure efanayo, i-silicon carbide ineempawu ze-polycrystalline e-homogeneous.

I-silicon carbide (i-Mosanite) inqabile kakhulu eMhlabeni, kodwa ixhaphake kakhulu esithubeni. I-cosmic silicon carbide idla ngokuba yinxalenye yothuli lwecosmic olujikeleze iinkwenkwezi zekhabhoni. Isilicon carbide efumaneka esithubeni kunye neemeteorites phantse ngokungaguquguqukiyo β-phase crystalline.

I-A-sic yeyona ixhaphakileyo kwezi polytypes. Yenziwe kumaqondo obushushu angaphezu kwe-1700 ° C kwaye inesakhiwo sekristale esinehexagonal esifana ne-wurtzite.

I-B-sic, ene-diamond-like sphalerite crystal structure, yenziwe ngaphantsi kwe-1700 ° C.