Hoʻolauna huahana a me ka hoʻopili ʻana o ka carbide silicon ʻeleʻele
ʻEleʻele silicon carbide(i hoʻopōkole ʻia e like me ka silicon carbide ʻeleʻele) he mea hana ʻole metala i hana ʻia me ke one quartz a me ka petroleum coke ma ke ʻano he mau mea maka nui a hoʻoheheʻe ʻia i ka mahana kiʻekiʻe i loko o ka umu kū'ē. He ʻano ʻeleʻele-hina a ʻeleʻele paha kona, paʻakikī kiʻekiʻe loa, conductivity thermal maikaʻi a me ke kūpaʻa kemika. He mea maka ʻoihana maikaʻi loa ia a hoʻohana nui ʻia i nā abrasives, nā mea refractory, metallurgy, ceramics, electronics a me nā ʻoihana ʻē aʻe.
Ⅰ. Nā ʻano hana o ka carbide silicon ʻeleʻele
ʻO ka paʻakikī Mohs oʻeleʻele silicon carbideʻO ke kiʻekiʻe he 9.2, ʻo ka lua wale nō i ka daimana a me ka cubic boron nitride, a he kūpaʻa ikaika loa ia i ka ʻaʻahu a me ke kūpaʻa i ka hopena. ʻO kona kiko heheʻe ma kahi o 2700°C, a hiki iā ia ke mālama i ke kūpaʻa o ke kūkulu ʻana i nā wahi mahana kiʻekiʻe a ʻaʻole maʻalahi ke palaho a hoʻololi paha. Eia kekahi, he conductivity thermal maikaʻi kona a me ka coefficient hoʻonui thermal haʻahaʻa, a hōʻike mau i ke kūpaʻa haʻalulu thermal maikaʻi loa ma lalo o ke kiʻekiʻe o ka mahana a me nā kūlana kaomi kiʻekiʻe.
Ma ke ʻano o nā waiwai kemika, loaʻa i ka silicon carbide ʻeleʻele ke kūpaʻa maikaʻi i ka pala i nā waikawa a me nā alkalis, a kūpono loa ia no ka hoʻohana ʻana i ka ʻoihana i nā wahi ʻino. ʻO kona conductivity kiʻekiʻe hoʻi e lilo ia i mea ʻē aʻe no kekahi mau mea hoʻomehana uila a me nā kahua semiconductor.
Ⅱ. Nā ʻano huahana nui a me nā kikoʻī
Hiki ke hana ʻia ka carbide silicon ʻeleʻele i nā ʻano like ʻole e like me nā nui like ʻole a me nā hoʻohana ʻana o nā ʻāpana:
Mea poloka: nā kristal nui ma hope o ka hoʻoheheʻe ʻia ʻana, hoʻohana pinepine ʻia no ka hana hou ʻana a i ʻole he mau mea hoʻohui metallurgical;
One Granular (one F/one P): hoʻohana ʻia e hana i nā huila wili, nā mea hoʻopōʻino one, nā pepa one, a pēlā aku;
Pauka liʻiliʻi (W, D series): hoʻohana ʻia no ka wili ʻana i ka pololei loa, ka hoʻopili ʻana, ka sintering seramika, a pēlā aku;
Pauka micro pae nano: hoʻohana ʻia no nā keramika uila kiʻekiʻe, nā mea hui hoʻohuihui wela, a pēlā aku.
Loaʻa ka nui o ka ʻāpana mai F16 a i F1200, a hiki i ka nui o ka ʻāpana o ka pauka liʻiliʻi ke hiki i ka pae nanometer, hiki ke hoʻopilikino ʻia e like me nā koi loea o nā ʻano noi like ʻole.
I. Nā wahi noi nui o ka carbide silicon ʻeleʻele
1. Nā mea hoʻowali a me nā mea hana wili
ʻO nā mea hoʻowali nā wahi hoʻohana kuʻuna a hoʻohana nui ʻia o ka silicon carbide ʻeleʻele. Ma ka hoʻohana ʻana i kona paʻakikī kiʻekiʻe a me nā waiwai hoʻowali ponoʻī, hiki ke hoʻohana ʻia ka silicon carbide ʻeleʻele e hana i nā huahana abrasive like ʻole, e like me nā huila wili, nā disc ʻoki, ka pepa one, nā poʻo wili, nā mea hoʻopili wili, a pēlā aku, i kūpono no ka wili ʻana a me ka hana ʻana i nā mea e like me ka hao i hoʻolei ʻia, ke kila, nā metala non-ferrous, nā keramika, ke aniani, ka quartz, a me nā huahana sima.
ʻO kona mau pono, ʻo ia ka wikiwiki o ka wili ʻana, ʻaʻole maʻalahi ke pani, a me ka hana pono kiʻekiʻe. Hoʻohana nui ʻia ia i ka hana metala, ka hana mīkini, ka hoʻonaninani hale a me nā ʻoihana ʻē aʻe.
2. Nā mea paʻa ʻole
Ma muli o kona kūpaʻa wela kiʻekiʻe a me ke kūpaʻa ʻana i ka pala, hoʻohana nui ʻia ka silicon carbide ʻeleʻele ma ke kahua o nā mea refractory wela kiʻekiʻe. Hiki ke hana ʻia i nā piliki silicon carbide, nā uhi umu, nā ipu hoʻoheheʻe, nā paipu pale thermocouple, nā mea hana umu, nā nozzles, nā piliki tuyere, a pēlā aku, a hoʻohana nui ʻia i nā ʻoihana wela kiʻekiʻe e like me ka metallurgy, nā metala non-ferrous, ka uila, ke aniani, ka sima, a pēlā aku, e hoʻolōʻihi i ke ola o nā lako a hoʻomaikaʻi i ka palekana hana.
Eia kekahi, he mau waiwai antioxidant maikaʻi nā mea silicon carbide i nā lewa oxidizing wela kiʻekiʻe a kūpono no ka hoʻohana ʻana i nā ʻāpana koʻikoʻi o nā umu pahū wela, nā umu pahū a me nā lako ʻē aʻe.
3. ʻOihana hana hao
I nā kaʻina hana metallurgical e like me ka hana kila a me ka hoʻolei ʻana, hiki ke hoʻohana ʻia ka silicon carbide ʻeleʻele ma ke ʻano he deoxidizer, mea hoʻomehana a me ka recarburizer. Ma muli o kona nui o ke kalapona a me ka hoʻokuʻu wikiwiki ʻana i ka wela, hiki iā ia ke hoʻomaikaʻi pono i ka pono o ka hoʻoheheʻe ʻana a hoʻomaikaʻi i ke ʻano o ke kila i hoʻoheheʻe ʻia. I ka manawa like, hiki iā ia ke hoʻemi i ka nui o ka haumia i ke kaʻina hana hoʻoheheʻe a pāʻani i kahi hana i ka hoʻomaʻemaʻe ʻana i ke kila i hoʻoheheʻe ʻia.
Hoʻohui kekahi mau wili kila i kahi hapa o ka silicon carbide e hoʻoponopono i ke ʻano i ka hoʻoheheʻe ʻana o ka hao hao a me ka hao ductile e mālama i nā kumukūʻai a hoʻomaikaʻi i ka hana o ka hoʻoheheʻe ʻana.
4. Nā keramika a me nā mea uila
He mea nui nō hoʻi ka silicon carbide ʻeleʻele no nā keramika hana. Hiki ke hoʻohana ʻia e hoʻomākaukau i nā keramika kūkulu, nā keramika pale ʻaʻahu, nā keramika alakaʻi wela, a pēlā aku, a he nui nā manaʻolana i nā kahua o nā mea uila, ʻoihana kemika, mīkini, a pēlā aku. Loaʻa iā ia ka conductivity wela maikaʻi loa, me ka conductivity wela a hiki i ka 120 W/m·K, a hoʻohana pinepine ʻia i nā mea hoʻoheheʻe wela conductive wela, nā mea interface wela a me nā ʻāpana hoʻoheheʻe wela LED.
Eia kekahi, ua komo mālie ka silicon carbide i ke kahua o nā semiconductors mana a lilo i mea kumu no nā mea wela kiʻekiʻe a me nā mea uila kiʻekiʻe. ʻOiai ʻoi aku ka haʻahaʻa o ka maʻemaʻe o ka silicon carbide ʻeleʻele ma mua o ka silicon carbide ʻōmaʻomaʻo, hoʻohana ʻia nō hoʻi ia i kekahi mau huahana uila medium a me low-voltage.
5. Nā ʻoihana photovoltaic a me ka ikehu hou
Hoʻohana nui ʻia ka pauka silicon carbide ʻeleʻele i ka ʻoki ʻana i nā wafers silicon i ka ʻoihana photovoltaic. Ma ke ʻano he abrasive i ke kaʻina hana ʻoki uea daimana, loaʻa iā ia nā pono o ka paʻakikī kiʻekiʻe, ikaikaʻokiʻokika ikaika, ka pohō haʻahaʻa, a me ka ʻili ʻoki laumania, e kōkua ana i ka hoʻomaikaʻi ʻana i ka pono ʻoki a me ka hua o nā wafers silicon a hoʻemi i ka helu pohō wafer a me nā kumukūʻai hana.
Me ka hoʻomohala mau ʻana o ka ikehu hou a me nā ʻenehana mea hou, ke hoʻomohala ʻia nei hoʻi ka silicon carbide no nā kahua e kū mai ana e like me nā mea hoʻohui electrode maikaʻi ʻole o ka pā lithium a me nā mea lawe membrane seramika.
Ⅳ. Hōʻuluʻulu Manaʻo a me ka Nānā
He kuleana koʻikoʻi ko ka silicon carbide ʻeleʻele i nā ʻoihana ʻoihana he nui me kona mau waiwai mechanical, thermal a me kemika maikaʻi loa. Me ka holomua mau o ka ʻenehana hana ʻana, ka kaohi ʻana i ka nui o nā ʻāpana huahana, ka hoʻomaʻemaʻe ʻana i ka maʻemaʻe a me ka hoʻonui mau ʻana o nā kahua noi, ke ulu nei ka silicon carbide ʻeleʻele i ka hana kiʻekiʻe a me ka pololei.
I ka wā e hiki mai ana, me ka piʻi wikiwiki ʻana o nā ʻoihana e like me ka ikehu hou, nā keramika uila, nā mea kiʻekiʻewili ʻana a me ka hana akamai, e hoʻokani ka carbide silicon ʻeleʻele i kahi hana koʻikoʻi i ke kahua o ka hana kiʻekiʻe a lilo i ʻāpana koʻikoʻi o ka ʻōnaehana ʻenehana mea holomua.