Nā Kaʻina hana no ka hana ʻana i nā pauka SiC kiʻekiʻe

Silika kalapona (SiC)he pūhui anorganic i ʻike ʻia no kona mau waiwai kūʻokoʻa. ʻO ka SiC kūlohelohe, i kapa ʻia ʻo moissanite, he kakaikahi loa. Ma nā hana ʻoihana,kalapona kalaponahana nui ʻia ma o nā ʻano hana synthetic.
Ma Semicera Semiconductor, hoʻohana mākou i nā ʻenehana holomua e hananā pauka SiC kiʻekiʻe.

Loaʻa i kā mākou mau ala:
Keʻano Acheson:ʻO kēia kaʻina hana hoʻohaʻahaʻa carbothermal maʻamau ka hui ʻana i ke one quartz maʻemaʻe kiʻekiʻe a i ʻole quartz ore i ʻoki ʻia me ka petroleum coke, graphite, a i ʻole ka pauka anthracite. Hoʻopili ʻia kēia hui ʻana i nā mahana ma mua o 2000 ° C me ka hoʻohana ʻana i kahi electrode graphite, e hopena i ka synthesis o ka pauka α-SiC.
Hoemi Carbothermal Haahaa:Ma ka hui ʻana i ka pauka silica maikaʻi me ka pauka kalapona a me ka hoʻokō ʻana i ka hopena ma 1500 a 1800 ° C, hana mākou i ka pauka β-SiC me ka hoʻomaʻemaʻe i hoʻonui ʻia. ʻO kēia ʻano hana, e like me ke ʻano ʻo Acheson akā ma nā haʻahaʻa haʻahaʻa, e hāʻawi mai i ka β-SiC me kahi ʻano aniani ʻokoʻa. Eia nō naʻe, pono ka hana ʻana ma hope o ka wehe ʻana i ke koena kalapona a me ka silicon dioxide.
ʻO ka pane pololei ʻo Silicon-Carbon:Hoʻopili pololei kēia ʻano hana i ka pauka silikon metala me ka pauka kalapona ma 1000-1400°C e hana i ka pauka β-SiC maʻemaʻe kiʻekiʻe. ʻO ka pauka α-SiC he mea waiwai nui no ka silicon carbide ceramics, aʻo ka β-SiC, me kona ʻano daimana, he mea kūpono ia no ka wili a me nā noi polishing.
Hōʻike ʻo Silicon carbide i ʻelua mau ʻano kristal nui:α a me β. ʻO β-SiC, me kāna ʻōnaehana kristal cubic, e hōʻike ana i kahi lattice cubic alo-centered no nā silika a me ke kalapona. ʻO ka ʻokoʻa, α-SiC nā polytypes like ʻole e like me 4H, 15R, a me 6H, me 6H ka mea maʻamau i hoʻohana ʻia i ka ʻoihana. Hoʻopilikia ka mahana i ka paʻa o kēia mau polytypes: Paʻa ka β-SiC ma lalo o 1600 ° C, akā ma luna o kēia mahana, hoʻololi mālie ia i nā polytypes α-SiC. No ka laʻana, hana ʻia ka 4H-SiC ma kahi o 2000°C, aʻo 15R a me 6H polytypes e koi i nā mahana ma luna o 2100°C. ʻO ka mea nui, paʻa mau ka 6H-SiC me nā mahana ma mua o 2200°C.

Ma Semicera Semiconductor, hoʻolaʻa mākou i ka holomua ʻana i ka ʻenehana SiC. ʻO kā mākou akamai maKa uhi ʻana o SiCa me nā mea waiwai e hōʻoia i ka maikaʻi a me ka hana no kāu mau noi semiconductor. E ʻimi pehea e hiki ai i kā mākou mau hoʻonā ʻokiʻoki ke hoʻonui i kāu kaʻina hana a me nā huahana.