Karāhe hiraka (SiC)He whānuitia te whakamahinga o te rauemi i roto i ngā taputapu ahumahi maha i raro i ngā taiao pāmahana teitei, pēhanga teitei me te waikura nā te mea he tino ātete ki te pāmahana teitei, te ātete ki te waikura, te kaha miihini me te kawe hiko. Hei tētahi o ngā whakamahinga nui o ngā rauemi silicon carbide, he mea nui te ngongo oumu silicon carbide (ngoi oumu SiC) i roto i te ahumahi hou.
Āhuatanga Hua
Ātete ki te pāmahana teitei：Ko te pāmahana rewa o te rauemi silicon carbide e eke ana ki te 2800℃. Ahakoa i roto i te taiao pāmahana tino teitei, ka taea e ngā ngongo oumu silicon carbide te pupuri i te hanganga me te mahi pumau.
Ātete ki te WaikuraKa taea e te ngongo oumu karawiti silicon te ātete i te mimiti o ngā mea waikura noa pēnei i te chlorine me te fluorine i te wā e whakarewahia ana, e ngā tauhohenga matū me ētahi atu tukanga, ā, ka roa ake te ora o te mahi.
Te Arahi Wera：E whakamahia whānuitia ana ngā ngongo oumu karawiti silicon i roto i ngā taputapu whakamahana me te maimoatanga wera, ā, ka taea te whakarite kia ōrite te whakamahana.
Ātete Whakakorikori：He tino pakari, he tino kaha hoki te karawiti silicon, ā, ka taea e ia te tu atu i te pēhanga miihini me te kakahu nui, inā koa i ētahi taiao he nui te kakahu, he tino pai tana mahi.
Tono
Te Rewa o te Konganuku:I roto i te tukanga whakarewa whakarewa, inā koa i te whakarewatanga o te konumohe, te maitai me ētahi konganuku utu nui, me tu atu ngā rauemi e ātete ana ki ngā pāmahana tiketike me te waikura hei ārai i te mimiti o ngā konganuku rewa. Ka taea e ngā ngongo oumu silicon carbide te tu atu ki ngā pāmahana neke atu i te 2000℃, ā, he tino pai mō te whakamahi hei wāhanga whakamahana, hei rauemi whakapuru rānei i roto i ngā oumu whakarewa whakarewa.
Te Ahumahi Karāhe me te UkuKo te tukanga whakaputa karāhe he whakarewa me te whakamahana i te pāmahana teitei. Mā te ātete ki te pāmahana teitei, ka taea e ngā ngongo oumu silicon carbide te whakapai ake i te pai o te whakaputa. I te wā o te tukanga tahu uku, ka whakamahia whānuitia hoki ngā ngongo oumu silicon carbide, hei rauemi paipa i roto i ngā oumu sintering pāmahana teitei.
Tauhohenga MatūI roto i te umanga matū, me whakahaere ētahi tauhohenga matū i raro i ngā āhuatanga pāmahana teitei me te pēhanga teitei, ā, ka puta pea he hau waikura i roto i te tukanga tauhohenga. He tino teitei te ātete o ngā ngongo oumu silicon carbide ki te waikura, ā, ka taea te whakarato tautoko pumau i raro i ēnei āhuatanga uaua, kia pai ai te haere o te tauhohenga.
Te Maimoatanga Wera:Ka whakamahia te hangarau maimoatanga wera hei whakarerekē i te hanganga me te mahi a te konganuku, te koranu rānei, ā, ka whakamahia te ngongo oumu silicon carbide i roto i te oumu maimoatanga wera, inā koa i roto i te taiao pāmahana teitei mō te whakapakeketanga me te whakamahana, ka taea ai te whakapūmau i te pumau o te pāmahana me te roa o te oumu i te wā e maimoatanga wera ana.
Ahumahi hiko-ārahi: I roto i te tukanga hanga o ngā hiko-ārahi, inā koa i roto i te whakatakotoranga kohu matū (CVD) me ētahi atu tukanga maimoatanga pāmahana-tiketike, he mahi nui tā ngā ngongo oumu silicon carbide. Nā ōna āhuatanga pāmahana-tiketike me te ātete-waikura ka taea e ia te whakatutuki i ngā whakaritenga teitei mō te whakahaere pāmahana me te parakore o te hau i roto i te hanga hiko-ārahi.
Tikanga Hanga
He tino uaua te tukanga hanga o ngā ngongo oumu silicon carbide, ā, me whai hangarau sintering pāmahana-teitei motuhake mō te whakarite. Ko ngā tikanga whakarite noa ko:
Te Whakapūtanga Wera-Pēhi:Ko te whakamahi i te wera-pēhi he tikanga mō te whakamahi i te paura silicon carbide i raro i ngā āhuatanga pāmahana me te pēhanga teitei. Mā tēnei tikanga ka taea te whiwhi rauemi silicon carbide matotoru me ngā āhuatanga miihini me te pumau wera pai rawa atu.
Te Whakatakotoranga Kohu:Ka taea te whakarite i ngā rauemi karawiti silicon he tino parakore, he iti hoki ngā hapa mā te whakatakotoranga kohu. Ka taea e te whakatakotoranga kohu te whakahaere i te matotoru me te āhua tioata o te paparanga kua whakatakotoranga i raro i ētahi tikanga, kia maeneene ake ai te mata o te ngongo oumu, kia pai ake ai hoki tōna ātete ki te waikura.
Te Whakapūtanga TauhohengaKa hangaia te karawiti silicon mā te tauhohenga i ngā matū mua rerekē mā te tikanga tauhohenga sintering. He tino māmā te tukanga o tēnei tikanga, ā, ka taea te whakaputa papatipu, engari he iti ake te mātotoru me ngā āhuatanga hangarau o te hua kua oti i ērā o te sintering pehi-wera.
Ko ngā oumu ngongo silicon carbide a te Kamupene VET, i hangaia mō te whānuitanga o ngā tono maimoatanga wera, he mea hanga ki ngā huānga whakamahana silicon carbide (SiC) pakari, e whakaatu ana i te ōritetanga pāmahana tino pai me te tere whakamahana tere. Mā tēnei hanganga pakari ka mau tonu te mahi ahakoa i raro i ngā pāmahana tino kino. I te whakakotahitanga me te pūnaha whakahaere pāmahana tika, ka taea e ia te whiwhi hua whakamātautau tino tika me te taea te whakahoki. Nā tōna pono roa ka waiho tēnei taputapu hei whiringa pai mō ngā mara pēnei i te rangahau rauemi me te tukatuka uku. Ahakoa i roto i te taiao taiwhanga, ahumahi rānei, ka taea e tēnei oumu ngongo maha-mahi me te tino whai hua te whakarato i tētahi otinga tino pai mō ngā momo whakaritenga maimoatanga wera katoa.
Wā tuku: 12 o Ākuhata 2025