He taahiraa taketake engari he mea nui te whakamahana i roto i ngā āhuatanga maha o te whakaputanga ahumahi. Mai i te maimoatanga wera whakarewa ki te whakawera uku, tae noa ki te tukatuka i ētahi rauemi motuhake, me whai taputapu whakamahana pumau, whai hua, me te urutau. I roto i ēnei āhuatanga me ngā whakaritenga tino kaha mō te pāmahana me te roa,te irahiko karawiti siliconKei te piki haere te rongonui o ngā ngongo i roto i ngā umanga maha nā ō rātou painga ahurei.
Tērā pea ētahi e hiahia ana ki te mōhio, he aha te ngongo irahiko silicon carbide? He whakarāpopototanga noa iho, he huānga whakamahana ngongo tēnei i hangaia ki ngā uku silicon carbide, e whakamahia ana me ngā waea whakamahana, ngā tokotoko whakamahana me ētahi atu pūtake o roto, ā, he "whakawhiti wera" i roto i ngā oumu ahumahi me ētahi atu taputapu. Heoi, ko tōna ahurei kei roto i te mea kāore e whakaputa tika i ngā pāmahana teitei, engari ka whakawhiti ōrite i te wera ki te mea mahi e hiahia ana kia whakamahanatia i roto i te ahua o te irahiko mā roto i ngā huānga whakamahana o roto e takai ana i a ia, me te tiaki hoki i ngā wāhanga o roto mai i te āhuarangi matatini i roto i te oumu.
Mō ngā painga o ngā ngongo irahiko silicon carbide, ko te "ātete pāmahana teitei" te tino tohu matua. Tērā pea ka rerekē te āhua me te waikura o ngā ngongo whakamahana whakarewa noa i ngā pāmahana o ngā rau nekehanga Celsius, engari he tino pai te ātete pāmahana teitei o ngā uku silicon carbide. Ahakoa i roto i ngā oumu pāmahana teitei i runga ake i te 1300 ℃, ka taea e rātou te pupuri i te pumau o te hanganga, ā, kāore e pakaru wawe. Mā tēnei āhuatanga ka taea e ia te urutau ki ngā āhuatanga tukatuka pāmahana teitei, pērā i te pāmahana sintering o ētahi uku motuhake e neke atu ana i te 1200 ℃, ā, ka taea e ngā ngongo irahiko silicon carbide te mahi pono i roto i aua taiao mō te wā roa.
Haunga te ātete ki te pāmahana teitei, ko te "ātete ki te waikura" tētahi o ngā āhuatanga matua o taua mea. I roto i te maha o ngā tukanga whakamahana ahumahi, tera pea he hau waikawa, he hau kawakore, he hau waikura rānei i roto i te oumu, ka taea te waikura ngāwari i ngā wāhanga whakamahana me te whakapoto i te roa o te mahi a ngā taputapu. He kaha te pumau matū o te rauemi silicon carbide, ā, ehara i te mea ngāwari ki te tauhohe ki ēnei matū waikura, ko te tikanga ka taea te pupuri i te roa o te ora i roto i ngā hau oumu uaua, te whakaiti i te auau o te whakakapinga taputapu, ā, i te wā roa, ka whakaitihia hoki ngā utu whakaputa me te tiaki o ngā umanga.
Hei tāpiritanga, he mea tika kia whakahuatia te "pai o te wera" o ngā ngongo irahiko silicon carbide. He pai tōna kawe wera, ka taea te whakawhiti tere i te wera i hangaia e ngā wāhanga whakamahana o roto, me te whakamahana i te mea mahi mā te irahiko. Ehara i te mea ka tere te wera o tēnei tikanga whakamahana, engari ka pai ake te tohatoha o te pāmahana i roto i te oumu, ka karo i te wera nui o te rohe, te kore rānei e ranea te pāmahana. He mea tino nui tēnei hei whakarite i te ōritetanga o te kounga tukatuka hua. Hei tauira, i roto i te maimoatanga wera o ngā wāhanga whakarewa, ka pā tika te ōritetanga o te pāmahana ki te pakeke, te pakari, me ētahi atu āhuatanga o ngā wāhanga, ā, ka taea e ngā ngongo irahiko silicon carbide te tautoko pumau i tēnei whakaaro.
Heoi anō, kāore he herenga o te whakamahinga o ngā ngongo irahiko silicon carbide. Hei tauira, he nui ake te utu i ērā o ngā ngongo whakamahana whakarewa noa, ā, nā ngā āhuatanga o ngā rauemi uku, me karo i ngā tukinga kino i te wā tāutanga me te whakamahinga hei ārai i ngā kino. Engari mō ngā ahumahi he nui ngā whakaritenga mō te pāmahana whakamahana, te waikura taiao, me te kounga o te hua, ko te pumau, te whai huatanga, me te roa o te ora e hua mai ana ka whakaea i ēnei ngoikoretanga iti.
I ēnei rā, me te whanaketanga o te hanga ahumahi ki te tika me te kounga teitei, kei te piki haere tonu hoki ngā whakaritenga mō ngā taputapu whakamahana. Hei huānga whakamahana ahumahi pai rawa atu, kei te piki haere te mahi a ngā ngongo irahiko silicon carbide i roto i ngā mara pēnei i te uku, te whakarewa, me te hikohiko. Ahakoa kāore i te tino ātaahua pērā i ētahi hangarau hou, ko tēnei āhuatanga o te "piri puku ki tōna pou" i roto i ngā taiao tino kino e waiho ana hei "tohunga ātete pāmahana teitei" tino nui i roto i te hanga ahumahi, e whakarato ana i ngā taurangi pono mō ngā tukanga whakamahana tono nui.
Wā tuku: Hepetema-27-2025