I roto i ngā āhuatanga ahumahi maha, he maha ngā wā ka pāngia ngā taputapu e ngā taiao mahi uaua, ā, ka pā kino ngā raruraru pakaru me te haehae ki te roa o te mahi me te whai huatanga o te mahi a ngā taputapu. Ko te putanga mai o te arai ātete-kakahu silicon carbide he otinga whai hua mō ēnei raruraru, ā, kei te haere haere tonu hei whakangungu pakari mō ngā taputapu ahumahi.
Karāhe silicon, he matū i hangaia mai i te waro me te silicon, he tino mīharo ōna āhuatanga. He tino teitei tōna pakeke, tuarua ki te taimana tino mārō o te taiao, ā, ko tōna pakeke Mohs te tuarua ki te taimana, ko te tikanga ka taea e ia te ātete ngāwari ki te rakuraku me te tapahi o ngā matūriki mārō maha, ā, ka pai te mahi i roto i te ātete kakahu. I taua wā anō, he iti hoki te tauwehenga waku o te silicon carbide, ka taea te whakahaere i te tere kakahu i te taumata tino iti i raro i ngā āhuatanga uaua pēnei i te waku maroke, te hinu whakahinuhinu ngoikore rānei, ka roa ake te ora ratonga o ngā taputapu.
Haunga te pakeke me te iti o te tauwehenga waku, he tino pumau hoki ngā āhuatanga matū o te silicon carbide, me te kore e taea te whakamahi matū. He kaha tōna ātete ki te waikura mai i ngā waikawa kaha (haunga te waikawa hydrofluoric me te waikawa phosphoric wera kukū), ngā turanga kaha, ngā tote rewa, me ngā momo konganuku rewa (pērā i te konumohe, te konutea, te parahi). Mā tēnei āhuatanga ka taea e ia te mahi pumau ahakoa i roto i ngā taiao uaua e noho tahi ai te waikura me te kakahu.
Mai i te tirohanga o ngā āhuatanga wera me ngā āhuatanga ā-tinana, he tino pai te mahi a te silicon carbide. He nui tōna kawe wera, ā, ka taea te whakakore i te wera i puta mai i te waku, ka karo i te whakangawari o ngā rauemi, te pakaru rānei o te ahotea wera i puta mai i te wera nui o te taputapu, ā, ka mau tonu te ātete kakahu pai; He iti noa te tauwehenga o te whānui wera, ka taea te whakarite i te pumau o ngā āhuatanga o te taputapu me te whakaiti i te kino o te ahotea wera ki te taputapu i te wā e piki haere ana te pāmahana. Heoi anō, he tino pai hoki te ātete pāmahana teitei o te silicon carbide, me te pāmahana whakamahinga tae atu ki te 1350 °C i te hau (taiao waikura) me te teitei ake i roto i ngā taiao kore mahi, taiao whakaiti rānei.
I runga i ngā āhuatanga o runga ake nei, kua whānuitia te whakamahinga o te arai ātete-kakahu o te silicon carbide i roto i ngā ahumahi maha. I roto i te umanga hiko, ko ngā paipa e whakamahia ana hei kawe rauemi pēnei i te pungarehu rere ka horoia e ngā matūriki totoka tere-tere, ā, ka tere te memeha o ngā paipa rauemi noa. Heoi, i muri i te whakamahinga o te arai ātete-kakahu o te silicon carbide, ka tino pai ake te ātete-kakahu o te paipa, ā, ka roa ake te ora ratonga; I roto i te umanga keri, ko te tāutanga o te arai ātete-kakahu o te silicon carbide ki ngā wāhanga ātete-kakahu pēnei i ngā paipa kawe paru me ngā roto o te kuru ka whakaiti i te auau tiaki taputapu me te whakapai ake i te pai o te whakaputa; I roto i te umanga matū, i te anga atu ki ngā taiao waikura me ngā taiao tauhohenga matū uaua, ko te arai ātete-kakahu o te silicon carbide ehara i te mea he ātete-kakahu anake, engari he ātete pai hoki ki te waikura matū, kia mau ai te mahi haumaru me te pumau o ngā taputapu.
I roto i te poto, ka whakaratohia e te arai ātete-kakahu silicon carbide he tiaki pono mō ngā taputapu ahumahi me tana mahi tino pai. I te whanaketanga tonu o te pūtaiao rauemi, ka haere tonu te whakapai ake i te mahi a te arai ātete-kakahu silicon carbide, ā, ka taea te whakaiti ake i te utu. I te heke mai, e tumanakohia ana ka whakamahia ki roto i ngā mara maha atu, ā, ka nui ake te mahi i roto i te mahi whai hua me te pumau o te whakaputa ahumahi.
Te wā tuku: Hurae-28-2025