ʻO ka poloka a me nā tile pale ʻaʻahu Silicon carbide

Hōʻike ʻo Silicon carbide (SiC) i ke kūpaʻa koʻikoʻi i ka ʻaʻahu a me ka pala ma muli o kona mau waiwai kino a me nā kemika kūikawā.

Ma ke ʻano o ke kūpaʻa ʻana i ke komo ʻana, hiki i ka paʻakikī Mohs o ka silicon carbide ke piʻi i ka 9.5, ʻo ka lua wale nō i ka daimana a me ka boron nitride. ʻO kona kūpaʻa ʻana i ke komo ʻana ua like ia me 266 mau manawa o ke kila manganese a me 1741 mau manawa o ka hao i hoʻolei ʻia me ka chromium kiʻekiʻe.

Ma ke ʻano o ke kūpaʻa ʻana i ka palaho, he kiʻekiʻe loa ke kūpaʻa kemika o ka silicon carbide a hōʻike i ke kūpaʻa maikaʻi loa i nā waikawa ikaika, alkalis, a me nā hopena paʻakai. I kēia manawa, he kiʻekiʻe ke kūpaʻa o ka silicon carbide i nā metala hoʻoheheʻe ʻia e like me ka alumini a me ka zinc, a hoʻohana pinepine ʻia i nā ipu hoʻoheheʻe a me nā ʻōmole i ka ʻoihana metallurgical.

I kēia manawa, ua hoʻohana nui ʻia ka silicon carbide i hui pū ʻia me ka ʻano superhard a me kona inertness kemika i nā ʻoihana e like me ke kālai ʻana, ke kila, a me nā kemika, e lilo i koho mea kūpono ma lalo o nā kūlana hana koʻikoʻi.

Poloka pale ʻaʻahu silicon carbidehe hoʻokaʻawale koʻikoʻi ia i nā huahana silicon carbide. ʻO nā waiwai kūpaʻa i ke kapa komo a me ka pale ʻana i ka palaho o ka silicon carbide e hoʻohana nui ʻia i nā lako wili e like me nā mea wili mine a me nā wili pōpō, e hōʻemi ana i ka hoʻololi pinepine ʻana i nā lako i hoʻokumu ʻia e ka ʻaʻahu a pēlā e hoʻohaʻahaʻa ai i nā kumukūʻai mālama mīkini.

Eia ka hoʻohālikelike ʻana ma waena o nā poloka pale ʻaʻahu silicon carbide a me nā poloka pale ʻaʻahu mea kuʻuna ʻē aʻe: