ʻO C, N, B a me nā mea ʻē aʻe ʻaʻole oxide kiʻekiʻe-tech refractory maka, he nui ka sintered silicon carbide i ke kaomi lewa, he waiwai nui, hiki ke ʻōlelo ʻia he emery a i ʻole ke one refractory. ʻO ka silicon carbide maʻemaʻe he kristal aniani ʻole kala. No laila he aha ke ʻano o ka mea a me nā ʻano o ka silicon carbide?
ʻO ka carbide silicon sintered ma lalo o ke kaomi lewa
ʻAno mea o ke kaomi lewa sintered silicon carbide:
ʻO ke kaomi lewa sintered silicon carbide i hoʻohana ʻia i ka ʻoihana he melemele māmā, ʻōmaʻomaʻo, uliuli a ʻeleʻele e like me ke ʻano a me ka nui o nā haumia, a ʻokoʻa ka maʻemaʻe a ʻokoʻa ka transparency. Ua māhele ʻia ke ʻano kristal silicon carbide i ʻeono huaʻōlelo a i ʻole ka plutonium ʻano daimana a me ka cubic plutonium-sic. Hoʻokumu ʻo Plutonium-sic i nā ʻano deformation like ʻole ma muli o ke ʻano stacking like ʻole o nā ʻātoma kalapona a me silicon i loko o ke ʻano kristal, a ua loaʻa ma mua o 70 mau ʻano deformation. Hoʻololi ka beta-SIC i ka alpha-SIC ma luna o 2100. Hoʻomaʻemaʻe ʻia ke kaʻina hana ʻoihana o ka silicon carbide me ke one quartz kiʻekiʻe a me ka petroleum coke i loko o kahi umu kū'ē. Kuʻi ʻia nā poloka silicon carbide i hoʻomaʻemaʻe ʻia, hoʻomaʻemaʻe acid-base, hoʻokaʻawale magnetic, kānana a koho wai paha e hana i nā ʻano huahana nui o ka ʻāpana.
Nā ʻano mea o ke kaomi lewa sintered silicon carbide:
Loaʻa i ka Silicon carbide ke kūpaʻa kemika maikaʻi, ka conductivity thermal, ka coefficient hoʻonui thermal, ke kū'ē ʻana i ke komo ʻana, no laila ma waho aʻe o ka hoʻohana abrasive, nui nā hoʻohana: No ka laʻana, ua uhi ʻia ka pauka silicon carbide ma ka paia o loko o ka impeller turbine a i ʻole ka poloka cylinder me kahi kaʻina hana kūikawā, hiki ke hoʻomaikaʻi i ke kū'ē ʻana i ke komo ʻana a hoʻolōʻihi i ke ola o 1 a 2 mau manawa. Hana ʻia me ke kūpaʻa wela, ka liʻiliʻi o ka nui, ke kaumaha māmā, ka ikaika kiʻekiʻe o nā mea refractory kiʻekiʻe, maikaʻi loa ka pono o ka ikehu. ʻO ka silicon carbide haʻahaʻa (me kahi o 85% SiC) he deoxidizer maikaʻi loa no ka hoʻonui ʻana i ka wikiwiki o ka hana kila a me ka maʻalahi o ka hoʻomalu ʻana i ka haku mele kemika e hoʻomaikaʻi i ka maikaʻi o ke kila. Eia kekahi, hoʻohana nui ʻia ka silicon carbide sintered kaomi lewa i ka hana ʻana i nā ʻāpana uila o nā koʻokoʻo kalapona silicon.
He paʻakikī loa ka Silicon carbide. ʻO ka paʻakikī Morse he 9.5, ʻo ka lua wale nō i ka daimana paʻakikī o ka honua (10), he semiconductor me ka conductivity thermal maikaʻi loa, hiki ke pale aku i ka oxidation i nā mahana kiʻekiʻe. Loaʻa iā Silicon carbide ma ka liʻiliʻi he 70 mau ʻano crystalline. ʻO ka Plutonium-silicon carbide kahi isomer maʻamau e hana ʻia ma nā mahana ma luna o 2000 a he ʻano crystalline hexagonal (like me ka wurtzite). Sintered silicon carbide ma lalo o ke kaomi lewa
Ka hoʻohana ʻana o ka silicon carbide i ka ʻoihana semiconductor
ʻO ke kaulahao ʻoihana semiconductor silicon carbide e pili nui ana i ka pauka maʻemaʻe silicon carbide, ka substrate kristal hoʻokahi, ka pepa epitaxial, nā ʻāpana mana, ka hoʻopili module a me nā noi terminal.
1. ʻO ka substrate kristal hoʻokahi ʻO ka substrate kristal hoʻokahi kahi mea kākoʻo semiconductor, mea alakaʻi a me ka substrate ulu epitaxial. I kēia manawa, ʻo nā ʻano ulu o ka kristal hoʻokahi SiC e komo pū ana me ke ʻano hoʻoili mahu kino (ʻano PVT), ke ʻano pae wai (ʻano LPE), a me ke ʻano waiho mahu kemika kiʻekiʻe (ʻano HTCVD). Sintered silicon carbide ma lalo o ke kaomi lewa
2. Pepa Epitaxial Pepa epitaxial Silicon carbide, pepa silicon carbide, kiʻiʻoniʻoni kristal hoʻokahi (papa epitaxial) me ke kuhikuhi like me ke kristal substrate i loaʻa kekahi mau koi no ka substrate silicon carbide. I nā noi hana, ua hana ʻia nā mea semiconductor ākea ākea i loko o ka papa epitaxial, a hoʻohana wale ʻia ka chip silicon ponoʻī ma ke ʻano he substrate, me ka substrate o ka papa epitaxial GaN.
3. Pauka silicon carbide maʻemaʻe kiʻekiʻe ʻO ka pauka silicon carbide maʻemaʻe kiʻekiʻe ka mea maka no ka ulu ʻana o ka silicon carbide kristal hoʻokahi ma ke ʻano PVT, a ʻo ka maʻemaʻe o ka huahana e pili pono ana i ka maikaʻi o ka ulu ʻana a me nā ʻano uila o ka silicon carbide kristal hoʻokahi.
4. ʻO ka mea mana he mana ākea ākea i hana ʻia me ka mea silicon carbide, nona nā ʻano o ke kiʻekiʻe o ka mahana, ke alapine kiʻekiʻe a me ka pono kiʻekiʻe. Wahi a ke ʻano hana o ka mea hana, ʻo ka mea hoʻolako mana SiC nui ka diode mana a me kahi paipu hoʻololi mana.
5. Kikowaena I nā noi semiconductor hanauna ʻekolu, loaʻa i nā semiconductors silicon carbide ka pono o ke hoʻopiha ʻana i nā semiconductors gallium nitride. Ma muli o ka pono hoʻololi kiʻekiʻe, nā ʻano hoʻomehana haʻahaʻa, ka māmā a me nā pono ʻē aʻe o nā mea SiC, ke hoʻomau nei ka piʻi ʻana o ke koi o ka ʻoihana downstream, a aia kahi ʻano e pani ai i nā mea SiO2.
Ka manawa hoʻouna: Iune-16-2023