Kei muri i ngā whanaketanga hangarau mō te tere ake o te utu i ngā waka hiko hou me ngā miihini rererangi whai hua ake, kei reira tētahi rauemi noa engari he kaha –ngā uku karāhe siliconAhakoa kāore i te tino kōrerohia tēnei uku matatau i hangaia ki ngā huānga waro me te silicon, kua noho hei "toa huna" i roto i ngā mara maha o te kounga teitei nā tōna mahi "matua pakari".
Ko te āhuatanga tino kitea o ngā uku silicon carbide ko tōna "tino kaha ki te urutau" ki ngā taiao tino kino. He ngāwari ngā rauemi noa ki te heke te mahi i ngā pāmahana teitei, he rite ki te "raruraru o te wera", engari ka taea tonu e rātou te pupuri i te neke atu i te 80% o tō rātou kaha ahakoa i te 1200 ℃, ā, ka taea hoki e rātou te tu atu ki ngā pānga tino kino o te 1600 ℃ i roto i te wā poto. Nā tēnei ātete wera ka tū motuhake i roto i ngā āhuatanga pāmahana teitei, pērā i te noho hei rauemi matua mō ngā wāhanga pito wera o ngā miihini rererangi. I taua wā anō, ko tōna pakeke te tuarua o te taimana, me te pakeke Mohs o te 9.5. Me te ātete waikura tino pai, ka taea e ia te pupuri i te pumau i roto i ngā taiao waikawa kaha me te kawakore, ā, ko tōna roa mahi he nui ake i ngā rauemi whakarewa tuku iho.
I roto i ngā mara o te hiko me te whakahaere wera, kua whakaatuhia e ngā uku silicon carbide ngā āhuatanga o te "kaitākaro whānui". He maha ngā wā ka nui ake te kawe wera o ōna uku alumina tuku iho, he rite tonu ki te tāuta i tētahi "totoka wera whai hua" ki ngā taputapu hiko, ka taea te tango wawe i te wera i puta i te wā e whakahaerehia ana ngā taputapu.
I ēnei rā, kua horapa te aroaro o ngā uku karawiti silicon puta noa i ngā mara matua maha. I roto i ngā waka pūngao hou, kei roto i te waeine hiko e huna ana, e whakapoto ana i te wā utu me te whakawhānui i te whānuitanga; I roto i te mara rererangi, ka taea e ngā wāhanga tāpine i hangaia mai i a ia te whakaiti i te taumaha o ngā taputapu me te whakanui ake i te pana; I roto i te hanga semiconductor, ko ōna āhuatanga whakawhānui wera iti ka pai ake te tika me te pumau o ngā taputapu tika pēnei i ngā mīhini lithography; Ahakoa i roto i te umanga karihi, kua noho hei rauemi hanganga nui mō ngā tauhohenga nā tōna painga ātete ki te irahiko.
I ngā wā o mua, he arai te utu ki te rongonuitanga o ngā uku silicon carbide, engari i te pakari o te hangarau whakarite, kua heke haere te utu, ā, kua tīmata te maha atu o ngā ahumahi ki te whai hua mai i tēnei hurihanga rauemi. Mai i ngā waka hiko mō te haere i ia rā ki ngā waka rererangi mō te tūhura i te wāhi, ko tēnei rauemi "wheua mārō" e ahua ngaro ana kei te akiaki i te hangarau ki tētahi heke mai whai hua me te pono i roto i te huarahi iti engari kaha.
Wā tuku: Hepetema-23-2025