I tenei wa, ko nga tikanga whakarite opaninga SiCKo te tikanga ko te tikanga gel-sol, te tikanga whakauru, te tikanga paninga paraihe, te tikanga rehu plasma, te tikanga tauhohenga hau matū (CVR) me te tikanga whakaputu matū (CVD).
Tikanga tāmau:
Ko te tikanga ko te ahua o te wera nui o te waahi totoka, e whakamahia ana te ranunga o te paura Si me te paura C hei paura whakauru, ka whakanohohia te matrix graphite ki roto i te paura whakauru, ka mahia te whakamaarama teitei i roto i te hau hau. , ka mutu ko tepaninga SiCka whiwhi ki te mata o te matrix graphite.He ngawari te tukanga me te pai o te whakakotahitanga i waenga i te paninga me te tïpako, engari ko te rite o te paninga i te taha o te matotoru he ngoikore, he ngawari ki te whakaputa i etahi atu kohao me te arahi ki te koretake o te waikura.
Tikanga paninga paraihe:
Ko te tikanga paninga paraihe ko te nuinga ki te parai i nga rauemi mata wai i runga i te mata o te matrix graphite, katahi ka rongoa i te rauemi mata i tetahi pāmahana hei whakarite i te paninga.He ngawari te tukanga, he iti te utu, engari he ngoikore te paninga i mahia e te tikanga whakakikorua paraihe i te whakakotahitanga me te tïpako, he ngoikore te rite o te paninga, he kikokore te paninga me te iti o te aukati o te waikura, me etahi atu tikanga hei awhina. te reira.
Tikanga rehu plasma:
Ko te tikanga rehu plasma ko te rehu i nga rauemi mata kua rewa, kua rewa ranei ki runga i te mata o te matrix graphite me te pu plasma, katahi ka whakakaha me te here kia hanga he paninga.Ko te tikanga he ngawari ki te whakahaere, ka taea e ia te whakarite i te paninga silicon carbide ahua matotoru, engari ko te paninga silicon carbide kua whakaritea e te tikanga he ngoikore rawa, ka arahi ki te ngoikore o te aukati, na reira ka whakamahia mo te whakarite i te paninga hiato SiC hei whakapai ake. te kounga o te paninga.
Tikanga gel-sol:
Ko te tikanga gel-sol te nuinga ki te whakarite i tetahi otinga sol me te maramara hei hipoki i te mata o te kopu, ka whakamaroke ki roto i te reera katahi ka sintering kia whiwhi paninga.He ngawari te whakahaere me te iti o te utu o tenei tikanga, engari ko te paninga i mahia he ngoikoretanga penei i te iti o te awangawanga waiariki me te pakaru ngawari, na reira kaore e taea te whakamahi whanui.
Tauhohenga Hau Matū (CVR):
CVR te nuinga whakaputapaninga SiCmā te whakamahi i te paura Si me te SiO2 ki te whakaputa i te mamaoa SiO i te pāmahana teitei, ka puta he raupapa o nga tauhohenga matū ki te mata o te taputapu C.Ko tepaninga SiCkua whakaritea e tenei tikanga kua piri tata ki te tïpako, engari he teitei ake te pāmahana tauhohenga, he nui ake te utu.
Te Whakapae Kohu Matū (CVD):
I tenei wa, ko te CVD te hangarau matua mo te whakaritepaninga SiCi runga i te mata tïpako.Ko te mahinga matua he raupapa o nga tauhohenga tinana me te matū o nga rauemi reactant wahanga hau i runga i te mata tïpako, ka mutu ka rite te paninga SiC ma te whakatakoto i runga i te mata tïpako.Ko te paninga SiC kua whakaritea e te hangarau CVD e piri tata ana ki te mata o te tïpako, ka pai ake te whakapai ake i te parenga o te waikura me te aukati ablative o te rauemi tïpako, engari he roa ake te wa tuunga o tenei tikanga, a he paitini te hau tauhohenga. hau.
Wā tuku: Noema-06-2023