Mā te whirihora i te 5% ki te 10% (wāhanga papatipu) Al2O3 ki te wāhanga matrix o ngā pereki waro/karāpiti oumu pupuhi (poraka waro) ka tino whakapai ake i te ātete ki te waikura o te rino rewa, ā, koinei te whakamahinga o ngā pereki waro konumohe ki roto i ngā pūnaha hanga rino. Tuarua, ka whakamahia hoki ngā pereki waro konumohe ki roto i te maimoatanga mua o te rino rewa me ngā oko wai.
Pereki waro konumohe mō te tukatuka mua i te rino rewa
Ko ngā pereki konumohe silicon carbide te nuinga o te wā e whakamahia ana i roto i ngā taputapu mō te kawe i te rino rewa pērā i ngā tāke rino rewa. Heoi, ina whakamahia tēnei momo rauemi ātete-waikura i roto i ngā tāke rino rewa nui me ngā mīhini whakaranu rino, ā, ka tūtaki ki ngā āhuatanga whakamahana me te whakamatao kino, ka ngāwari te pakaru, ka arahi ki te kiri o te hanganga. Hei tāpiri, nā te mea he 15% te ihirangi waro o ngā pereki Al2O3-SiC-C e whakamahia ana i roto i ngā tāke whakarewa wera nui me ngā mīhini whakaranu rino, ā, he teitei te kawe wera ki te 17~21W/(m·K) (800℃), ka heke te pāmahana o te rino rewa me te raruraru o te whakapēhanga o ngā rau rino o ngā tāke rino rewa nui me ngā waka whakaranu. Ko te ārai ko te whakatutuki i te kawe wera iti mā te tango i te SiC, he wāhanga kawe wera nui, me te whakaiti i te ihirangi karāpeti me te whakamahine i te karāpeti.
Mā te rangahau taketake, ka whakatauhia ko:
(1) Ina iti iho i te 10% te nui o te karāpeti (te wāhanga papatipu) i roto i ngā pereki waro konumohe, ko tōna hanganga whakahaere he Al2O3 e hanga ana i tētahi matihiko tonu, ā, ka whakakīia te waro ki roto i te matihiko i roto i te āhua o ngā pūwāhi whetu. I tēnei wā, ka taea te tatau tata i te kawe wera λ o te pereki waro konumohe mā te tātai (1)
I roto i te tātai, ko λa te kawe wera o Al2O3; ko Vc te wāhanga rōrahi o te karāpeti. E whakaatu ana tēnei kāore he pānga o te kawe wera o ngā pereki waro konumohe ki te kawe wera o te karāpeti.
(2) Ina whakapaia te karāpiti, ka iti ake te whakawhirinakitanga o te kawe wera o te pereki waro konumohe ki ngā matūriki karāpiti.
(3) Mō ngā pereki waro-konumohe iti-waro, ina whakapaingia te karāpiti, ka taea te hanga i tētahi hanganga hononga matotoru, ka taea ai te whakapai ake i te ātete ki te waikura o ngā pereki waro-konumohe.
E whakaatu ana tēnei ka taea e ngā pereki konumohe waro-A iti te urutau ki ngā āhuatanga mahi o ngā tāke whakarewa wera nui me ngā waka whakaranu rino i roto i te pūnaha hanga rino.
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Te wā tuku: 27-Pepuere-2024
