ʻO ka pāpaʻa silika carbide

I ka honua o ka hana pololei, aia kekahi mea e kākoʻo mālie i ka hoʻomohala ʻana i nā ʻoihana kiʻekiʻe he nui - ʻoi aku ka paʻakikī ma mua o ke kila, ʻoi aku ka wela ma mua o ka graphite, akā mālama mau i ke kino māmā. ʻo kēiapāpaʻa kalaika silika, he "metamaterial" koʻikoʻi i ka ʻoihana hou.
1、 Nā makana o ke ʻano a me ka crystallization o ka naʻauao kanaka
ʻO Silicon carbide (SiC) ʻaʻole ia he huahana ulia i loko o ka hale hana. I ka makahiki 1893, ua ʻike nā kānaka ʻepekema i kēia mineral kūlohelohe. I kēia mau lā, me ka hoʻohana ʻana i ka ʻenehana synthesis kiʻekiʻe e hoʻohui hou i ke one silika a me nā kumu kalapona i nā wela kiʻekiʻe, hana ʻia nā seramika silicon carbide ʻoihana me ka hana ʻoi aku ka maikaʻi. Hoʻohui maikaʻi kēia mea i ka paʻa o nā seramika me nā hiʻohiʻona o nā semiconductor, e hana ana i kahi gene mea kūʻokoʻa.
2、 Decrypt i nā pono kumu ʻelima
1. Kiaʻi wela wela
Ma lalo o nā kūlana koʻikoʻi o 1350 ℃, ua palupalu a deformed nā metala maʻamau, ʻoiai hiki i nā papa silicon carbide ceramic ke hoʻomau i ka kūpaʻa. ʻO kēia kūʻokoʻa kiʻekiʻe kiʻekiʻe i koho ʻia he koho kūpono no nā māla e like me nā mea hoʻoheheʻe a me nā ʻenekini aerospace.
2. Super ikaika pale pale
ʻO ka paʻakikī, ʻelua wale nō i ke daimana, hiki i nā papa silika carbide ke pale maʻalahi i ka erosion a me ka hopena o ka metala hehee. Ma ka laina hoʻolei alumini, ua hoʻonui ʻia kona ola ma mua o 5 mau manawa i hoʻohālikelike ʻia i nā mea refractory kuʻuna.
3. He akamai i ka hana wela
ʻAʻole like me nā waiwai "insulation" o nā seramika maʻamau, ʻoi aku ka maikaʻi o ka conductivity thermal silicon carbide. Hiki i kēia mea "breathable" ke hoʻololi koke i ka wela me ka mālama ʻana i kona kūpaʻa ponoʻī, e hana maikaʻi loa i ke kahua o ka hoʻoheheʻe wela semiconductor.

4. Paionia māmā
Ma ka ikaika like, ʻo kona kaumaha he hapakolu wale nō o ke kila. ʻO kēia hiʻohiʻona o ka "hāpai māmā ʻana i nā mea kaumaha" lawe mai i nā hopena hōʻemi kaumaha i nā kahua e like me nā lako ikehu hou a me ke kaʻa kaʻaahi.
5. Hoʻopaʻa Kimia
ʻIke ʻia me ka media corrosive loa, hōʻike ka silika carbide ceramics i ke kūpaʻa kupaianaha. I loko o kahi reactor kemika, ua like ia me kahi kahu ʻaʻole ʻōpala, e hōʻoia i ka palekana o ka hana.
3、 Hiki ke hoʻololi i ka wā e hiki mai ana
Mai ka substrate lawe ukana o nā cell photovoltaic a hiki i nā ʻāpana kūʻokoʻa o ka mīkini kikoʻī, mai ke kumu hoʻoheheʻe wela o nā ʻāpana semiconductor i ka module kānana o nā mea hoʻomalu kaiapuni, ke hoʻololi hou nei nā papa seramika silicon carbide i nā palena hana o nā mea ʻenehana. Ma nā kahua hoʻolālā e like me ka ikehu hou, ka ʻike uila, a me nā mea hana kiʻekiʻe, ʻo ka silicon carbide ceramic material e hoʻokau mālie nei i ka hoʻonui ʻana i ka ʻoihana.
Ma ke ʻano he mea hoʻomohala ʻenehana i komo hohonu i ke kahua o nā seramika kūikawā, ua kūpaʻa mau mākou i ka hoʻoikaika ʻana i ka hana o nā mea carbide silicon i ka ʻoi loa. Ma ka hoʻomaikaʻi mau ʻana i nā kaʻina hana sintering a me nā ʻenehana lapaʻau ʻili, lilo kēlā me kēia papa seramika i mea hana kiʻi ʻenehana hiki ke kū i ka hoʻāʻo o ka manawa. Eia ka wā e hiki mai ana, e ʻike pū kākou i ka nani kūʻokoʻa o ka silicon carbide ceramics e mohala nei ma nā kula ʻē aʻe.
Hoʻopili mau ʻo Shandong Zhongpeng i ka manaʻo o ka "mea hana hou e hoʻoikaika i ka holomua ʻoihana", a ke nānā nei i ka hana pū me nā hoa hana honua e ʻimi i ka hiki ke noi palena ʻole o ka silicon carbide ceramics.