ʻEkolu mau ʻano nui o ka polymorph silicon carbide
Aia ma kahi o 250 mau ʻano crystalline o ka silikon carbide. No ka mea, loaʻa i ka carbide silicon kahi ʻano o nā polytypes homogeneous me ka ʻano aniani like, loaʻa ka silicon carbide i nā ʻano o ka polycrystalline homogeneous.
Kakaʻikahi loa ka Silicon carbide (Mosanite) ma ka Honua, akā he mea maʻamau ia ma ka lewa. ʻO ka cosmic silicon carbide ka mea maʻamau o ka lepo cosmic a puni nā hōkū kalapona. ʻO ka carbide silika i loaʻa ma ka lewa a me nā meteorites ʻaneʻane he β-phase crystalline.
ʻO A-sic ka mea maʻamau o kēia mau polytypes. Hoʻokumu ʻia ia ma nā mahana ʻoi aku ma mua o 1700 ° C a he ʻano aniani hexagonal e like me ka wurtzite.
ʻO B-sic, nona kahi ʻano kristal sphalerite e like me daimana, ua hana ʻia ma lalo o 1700°C.
Ka manawa hoʻouna: ʻAukake-30-2022