Ko te tikanga whakaputa ahumahi o te silicon carbide kua whakamātauhia ki te tauhohenga ko te tango i te onepu quartz kounga teitei me te coke hinu kua whakamātauhia i roto i te oumu whakamahana hiko. Ka hangaia ngā poraka silicon carbide kua whakapaia hei taonga hokohoko me ngā tohatoha rahi matūriki rerekē mā te kuru, te horoi waikawa kaha me te kawakore, ngā taputapu wehenga aukume me te tātari, te wehenga wai rānei.
E rua ngā momo matua o te karawiti silicon, arā, ko te karawiti silicon pango me te karawiti silicon matomato, nō te α-SiC katoa ēnei. ① Kei roto i te karawiti silicon pango te 95% o te SiC, ā, he teitei ake tōna ngāwari i te karawiti silicon matomato, ko te nuinga o ēnei ka whakamahia hei whakaputa me te tukatuka i ngā rauemi mata he iti te kaha kume, pērā i te karāhe whakakikoruatia, te porcelain, te kōhatu, te ātete ahi, te rino poaka me ngā konganuku utu nui. ② Kei roto i te karawiti silicon matomato te SiC tata ki te 97% i runga ake, he pai te whakakoi-ake, ko te nuinga o ēnei ka whakamahia hei whakaputa me te tukatuka i ngā taputapu karawiti, te konganuku titanium me ngā arotahi whatu, ā, ka whakamahia hoki hei whakakoi i te raina rango me te whakakanapa i ngā taputapu maitai tere-teitei. Hei tāpiri, kei reira ngā mita pūtoru o te karawiti silicon, he tioata matomato mārama i hangaia e tētahi tukanga hou, ā, ka whakamahia hei whakaputa i tētahi pokepoke e tika ana mō te kawe i te whakaotinga-teitei, ka taea te hanga i te taratara o te mata mai i te Ra32 ~ 0.16μm ki te tukatuka ki te Ra0.04 ~ 0.02μm.
Ngā whakamahinga matua o te tauhohenga sintering silicon carbide
(1) Hei rauemi ātete-kakahu, ka taea te whakamahi hei pokepoke, pērā i te wira onepu, te kōhatu whakakoi, te wira huri, te pereki onepu, me ētahi atu.
(2) Hei tango waikura me te rauemi ātete waikura mō te umanga whakarewa. E whā ngā whakamahinga matua o te karawaka silicon, arā: ngā uku mahi, ngā rauemi ātete-whakarewa kounga teitei, ngā rauemi ātete-pakeke me ngā rauemi mata whakarewa. I tēnei wā, ka taea te whakarato i te rauemi karawaka silicon i roto i ngā huarahi maha, ehara i te hua hangarau teitei, ā, ko te whakamahinga o te paura karawaka nano-silicon me te ihirangi pūtaiao me te hangarau tino teitei, kāore pea e puta he pānga tauine i roto i te wā poto.
(3) tioata kotahi te parakore teitei, e tika ana mō te hanga rauemi semiconductor, te hanga muka matū silicon carbide.
Whānuitanga tono: Mō ngā pūtau photovoltaic 3-12 putu te roa, ngā pūtau photovoltaic, te pāhare pākawa waro, ngā kaiwhakaoho quartz me ētahi atu tapahi raina. Ahumahi photovoltaic solar, ahumahi semiconductor, ahumahi mekameka karaihe piezoelectric tukatuka rauemi mata.
Te karawiti silicon sintering tauhohe – ngā take hanganga
Ko te paerewa pēhanga tino teitei me te pāmahana teitei i hangaia i roto i te pūtake o te whenua ka rehuhia mai i te whenua me te rangitoto. Pērā i a Thailand, Ahitereiria, Shandong o Haina, te Hononga o Amerika me ētahi atu whenua. Ka hangaia te jade maitai mā te pa o te huringa. Pērā i a Myanmar, Kashmir, Anhui o Haina me ētahi atu rohe. Ko ngā rupi o te ao e ahu mai ana i ngā placer. Mā roto i ngā momo emerara taiao taketake, ngā kohatu kikorangi mā te tauhohenga whakakotahitanga horo, te sintering silicon carbide me te konganuku silicon tūturu parakore, te waro, te para rakau, te tote ahumahi hei rauemi mata, i roto i te oumu whakamahana hiko, ka whakaatahia te whakaputanga. Ko te tāpiri o te para rakau hei hanga i tētahi wahi iti o te rauemi whakaranu i te pāmahana teitei hei whakaputa i tētahi hanganga porous, e pai ana ki te whakaata i te tinana kohu nui me te pikinga hei tango atu, hei ārai i ngā aituā pahūtanga, nā te whakaputanga o te 1 tana o te silicon carbide, ka puta pea he 1.4t o te hauota waro (CO). Ko te mahi a te tote ahumahi (NaCl) he pai ki te tango i te waikura konumohe, ngā matū me ētahi atu toenga i roto i te rauemi.
Wā tuku: Pipiri-19-2023