Silicon carbide (SiC)he puhui pararopi e mohiotia ana mo ona ahuatanga motuhake. Ko te SiC tupu noa, e mohiotia ana ko te moissanite, he onge. I roto i nga tono ahumahi,carbide siliconka mahia te nuinga ma nga tikanga waihanga.
I Semicera Semiconductor, ka whakamahia e matou nga tikanga matatau ki te hangapaura SiC kounga teitei.
Kei roto i a maatau tikanga:
Tikanga Acheson:Ko tenei tukanga whakaheke warowhaariki tuku iho ko te whakaranu i te kirikiri kiripaka tino parakore, te kirikiri kiripaka kuru ranei ki te hinu hinu, kauwhata, paura anthracite ranei. Ka whakawerahia tenei ranunga ki te mahana neke atu i te 2000°C ma te whakamahi i te hiko kauwhata, ka puta te whakahiato o te paura α-SiC.
Te Whakahekenga Waahanga Waahanga Hakaiti:Ma te whakakotahi i te paura silica pai ki te paura waro me te whakahaere i te tauhohenga i te 1500 ki te 1800 ° C, ka whakaputahia e matou te paura β-SiC me te whakapai ake i te ma. Ko tenei tikanga, he rite ki te tikanga Acheson engari i te iti o te mahana, ka puta te β-SiC me te hanganga karaihe motuhake. Heoi, me mahi i muri i te tukatuka ki te tango i te toenga waro me te hauhā hiraka.
Tauhohenga Tiaki Silicon-Waaro:Ko tenei tikanga ko te whakautu tika i te paura silicon whakarewa me te paura waro i te 1000-1400°C hei whakaputa i te paura β-SiC tino parakore. Ka noho tonu te paura α-SiC hei rauemi mata matua mo nga karamu carbide silicon, engari ko te β-SiC, me tona hanganga rite taimana, he pai mo te huri tika me nga tono whakakoi.
Ko te Silicon carbide e whakaatu ana e rua nga ahua tioata matua:α me te β. Ko te β-SiC, me tana punaha karaihe putorino, e whakaatu ana i te kurupae-a-kanohi mo te kirikiri me te waro. He rereke, kei roto i te α-SiC nga momo polytypes penei i te 4H, 15R, me te 6H, me te 6H te nuinga o te whakamahi i te umanga. Ka pa te pawera ki te pumau o enei momo polytypes: Ko te β-SiC kei raro i te 1600°C, engari kei runga ake i tenei pāmahana, ka huri haere ki nga polytypes α-SiC. Hei tauira, ko te 4H-SiC te ahua o te 2000°C, ko te 15R me te 6H polytypes e hiahia ana ki runga ake i te 2100°C. Otirā, ka noho pūmau tonu te 6H-SiC ahakoa te pāmahana nui atu i te 2200°C.
I Semicera Semiconductor, e whakatapua ana matou ki te whakatairanga i te hangarau SiC. To tatou tohungatanga i roto ipaninga SiCme nga rauemi hei whakarite i te kounga teitei me te mahi mo o tono semiconductor. Torotoro me pehea e taea ai e a maatau rongoa te whakarei ake i o tukanga me o hua.
Wā tuku: Hūrae-26-2024