Hoʻopili hou ʻianā keramika silicon carbide (RSiC)hemea keramika hana kiʻekiʻe. Ma muli o kona kūpaʻa maikaʻi loa i ke ana wela kiʻekiʻe, ke kūpaʻa oxidation, ke kūpaʻa corrosion a me ka paʻakikī kiʻekiʻe, ua hoʻohana nui ʻia ia ma nā ʻano he nui, e like me ka hana semiconductor, ka ʻoihana photovoltaic, nā umu wela kiʻekiʻe a me nā lako kemika. Me ka hoʻonui ʻia o ke koi no nā mea hana kiʻekiʻe i ka ʻoihana hou, ke hoʻonui nei ka noiʻi a me ka hoʻomohala ʻana i nā keramika silicon carbide recrystallized.
1. ʻenehana hoʻomākaukau onā keramika silicon carbide i hoʻopili hou ʻia
ʻO ka ʻenehana hoʻomākaukau o ka recrystallizednā keramika silicon carbideʻElua mau ʻano hana nui: ka sintering pauka a me ka hoʻokahe mahu (CVD). I waena o lākou, ʻo ke ʻano sintering pauka ka sinter ʻana i ka pauka silicon carbide ma lalo o ke kaiapuni wela kiʻekiʻe i mea e hana ai nā ʻāpana silicon carbide i kahi ʻano paʻa ma o ka hoʻolaha ʻana a me ka recrystallization ma waena o nā hua. ʻO ke ʻano hoʻokahe mahu ka waiho ʻana i ka silicon carbide ma luna o ka ʻili o ka substrate ma o kahi hopena mahu kemika ma ka mahana kiʻekiʻe, a laila e hana ana i kahi kiʻiʻoniʻoni silicon carbide maʻemaʻe kiʻekiʻe a i ʻole nā ʻāpana kūkulu. Loaʻa i kēia mau ʻenehana ʻelua ko lākou mau pono ponoʻī. He kūpono ke ʻano sintering pauka no ka hana nui a he haʻahaʻa ke kumukūʻai, ʻoiai hiki i ke ʻano hoʻokahe mahu ke hāʻawi i ka maʻemaʻe kiʻekiʻe a me ke ʻano paʻa, a hoʻohana nui ʻia ma ke kahua semiconductor.
2. Nā waiwai o nā meanā keramika silicon carbide i hoʻopili hou ʻia
ʻO ke ʻano koʻikoʻi o nā keramika silicon carbide i hoʻopili hou ʻia ʻo ia kāna hana maikaʻi loa i nā wahi wela kiʻekiʻe. ʻO ke kiko heheʻe o kēia mea he 2700°C, a he ikaika mechanical maikaʻi kona i nā mahana kiʻekiʻe. Eia kekahi, loaʻa i ka silicon carbide i hoʻopili hou ʻia ke kūpaʻa maikaʻi loa i ka oxidation a me ke kūpaʻa i ka corrosion, a hiki ke noho paʻa i nā wahi kemika koʻikoʻi. No laila, ua hoʻohana nui ʻia nā keramika RSiC ma nā kahua o nā umu wela kiʻekiʻe, nā mea refractory wela kiʻekiʻe, a me nā lako kemika.
Eia kekahi, ʻo ka silicon carbide recrystallized he conductivity thermal kiʻekiʻe a hiki ke hoʻokele pono i ka wela, kahi e loaʻa ai ka waiwai noi koʻikoʻi i lokoNā mea hana MOCVDa me nā lako hana wela i ka hana ʻana o ka wafer semiconductor. ʻO kona conductivity thermal kiʻekiʻe a me ke kūpaʻa ʻana i ka haʻalulu thermal e hōʻoiaʻiʻo i ka hana hilinaʻi o nā lako ma lalo o nā kūlana koʻikoʻi.
3. Nā kahua noi o nā keramika carbide silicon recrystallized
Hana ʻana o ka Semiconductor: I loko o ka ʻoihana semiconductor, hoʻohana ʻia nā keramika silicon carbide i hoʻopili hou ʻia e hana i nā substrates a me nā kākoʻo i nā reactors MOCVD. Ma muli o kona kūpaʻa wela kiʻekiʻe, kūpaʻa i ka pala, a me ke alakaʻi wela kiʻekiʻe, hiki i nā mea RSiC ke mālama i ka hana paʻa i nā wahi hana kemika paʻakikī, e hōʻoiaʻiʻo ana i ka maikaʻi a me ka hua o nā wafers semiconductor.
ʻOihana Photovoltaic: I loko o ka ʻoihana photovoltaic, hoʻohana ʻia ʻo RSiC e hana i ke ʻano kākoʻo o nā lako ulu kristal. ʻOiai pono e hoʻokō ʻia ka ulu ʻana o ke kristal ma ka mahana kiʻekiʻe i ka wā o ke kaʻina hana o nā cell photovoltaic, ʻo ke kūpaʻa wela o ka silicon carbide recrystallized e hōʻoiaʻiʻo i ka hana paʻa lōʻihi o nā lako.
Nā umu wela kiʻekiʻe: Hoʻohana nui ʻia nā keramika RSiC i nā umu wela kiʻekiʻe, e like me nā uhi a me nā ʻāpana o nā umu hakahaka, nā umu hoʻoheheʻe a me nā lako ʻē aʻe. ʻO kona kūpaʻa i ka haʻalulu wela a me ke kūpaʻa ʻana i ka oxidation e hoʻolilo iā ia i hoʻokahi o nā mea pono ʻole i nā ʻoihana wela kiʻekiʻe.
4. Ke kuhikuhi noiʻi o nā keramika carbide silicon recrystallized
Me ka piʻi ʻana o ke koi no nā mea hana kiʻekiʻe, ua maopopo mālie ke kuhikuhi noiʻi o nā keramika silicon carbide i hoʻopili hou ʻia. E kālele ana ka noiʻi e hiki mai ana i nā ʻano aʻe:
Ka hoʻomaikaʻi ʻana i ka maʻemaʻe o nā mea: I mea e hoʻokō ai i nā koi maʻemaʻe kiʻekiʻe aʻe i nā kahua semiconductor a me photovoltaic, ke ʻimi nei nā mea noiʻi i nā ala e hoʻomaikaʻi ai i ka maʻemaʻe o RSiC ma o ka hoʻomaikaʻi ʻana i ka ʻenehana hoʻokaʻawale mahu a i ʻole ka hoʻolauna ʻana i nā mea maka hou, no laila e hoʻonui ai i kona waiwai noi ma kēia mau kahua ʻenehana kiʻekiʻe.
Ka hoʻonui ʻana i ka microstructure: Ma ka kaohi ʻana i nā kūlana sintering a me ka hoʻolaha ʻana o nā ʻāpana pauka, hiki ke hoʻonui hou ʻia ka microstructure o ka recrystallized silicon carbide, no laila e hoʻomaikaʻi ana i kona mau waiwai mechanical a me ke kūpaʻa ʻana i ka haʻalulu thermal.
Nā mea hana hui pū ʻia: I mea e hoʻololi ai i nā wahi hoʻohana paʻakikī, ke hoʻāʻo nei nā mea noiʻi e hoʻohui iā RSiC me nā mea ʻē aʻe e hoʻomohala i nā mea hana hui me nā waiwai multifunctional, e like me nā mea hana hui i hoʻokumu ʻia i ka silicon carbide me ke kūpaʻa ʻana o ke kapa komo kiʻekiʻe a me ka conductivity uila.
5. Hopena
Ma ke ʻano he mea hana kiʻekiʻe, ua hoʻohana nui ʻia nā keramika silicon carbide i hoʻopili hou ʻia ma nā ʻano he nui ma muli o ko lākou mau waiwai maikaʻi loa i ka mahana kiʻekiʻe, ke kūʻē ʻana i ka oxidation a me ke kūʻē ʻana i ka corrosion. E kālele ana ka noiʻi e hiki mai ana i ka hoʻomaikaʻi ʻana i ka maʻemaʻe o nā mea, ka hoʻonui ʻana i ka microstructure a me ka hoʻomohala ʻana i nā mea hana composite e hoʻokō ai i nā pono ʻoihana e ulu nei. Ma o kēia mau hana hou ʻenehana, manaʻo ʻia e pāʻani nui nā keramika silicon carbide i hoʻopili hou ʻia ma nā ʻano ʻenehana kiʻekiʻe.
Ka manawa hoʻouna: ʻOkakopa-24-2024