Mhando nhatu huru dzesilicon carbide polymorph
Kune mhando dze silicon carbide dzinenge mazana maviri nemakumi mashanu. Nekuti silicon carbide ine mhando dzakasiyana dze polytypes dzine chimiro chakafanana che crystal, silicon carbide ine hunhu hwe polycrystalline ine hunhu hwakafanana.
Silicon carbide (Mosanite) haiwanzo kuwanikwa paNyika, asi inowanikwa zvakanyanya muchadenga. Cosmic silicon carbide inowanzo kuve chikamu cheguruva repasi rose rakatenderedza nyeredzi dzekabhoni. Silicon carbide inowanikwa muchadenga uye meteorites inenge iri β-phase crystalline.
A-sic ndiyo inonyanya kuwanikwa pamhando idzi dzepolytype. Inoumbwa patembiricha inodarika 1700°C uye ine chimiro chekristaro chehexagonal chakafanana newurtzite.
B-sic, ine chimiro chekristaro chakaita sedhaimani chesphalerite, inoumbwa pakupisa kusingasviki 1700°C.
Nguva yekutumira: Nyamavhuvhu-30-2022