Emishinini yezindiza kanye neyezimoto, izinto zikagesi zivame ukusebenza emazingeni okushisa aphezulu, njengezinjini zezindiza, izinjini zezimoto, izindiza zasemkhathini eziya emsebenzini eduze kwelanga, kanye nemishini emazingeni okushisa aphezulu kumasathelayithi. Sebenzisa amadivayisi ajwayelekile e-Si noma e-GaAs, ngoba awasebenzi emazingeni okushisa aphezulu kakhulu, ngakho-ke lawa madivayisi kumele abekwe endaweni emazingeni okushisa aphansi, kunezindlela ezimbili: eyodwa ukubeka lawa madivayisi kude nokushisa okuphezulu, bese usebenzisa ama-lead kanye nezixhumi ukuze uwaxhume kudivayisi ezolawulwa; Enye ukufaka lawa madivayisi ebhokisini lokupholisa bese uwafaka endaweni emazingeni okushisa aphezulu. Ngokusobala, zombili lezi zindlela zengeza imishini eyengeziwe, zandisa ikhwalithi yesistimu, zinciphise isikhala esitholakalayo ohlelweni, futhi zenze uhlelo lungathembeki kangako. Lezi zinkinga zingaqedwa ngokusebenzisa ngqo amadivayisi asebenza emazingeni okushisa aphezulu. Amadivayisi e-SIC angasebenza ngqo ku-3M - cail Y ngaphandle kokupholisa emazingeni okushisa aphezulu.
Ama-elekthronikhi e-SiC kanye nezinzwa kungafakwa ngaphakathi naphezu kwezinjini zezindiza ezishisayo futhi kusasebenza ngaphansi kwalezi zimo zokusebenza ezimbi kakhulu, kunciphisa kakhulu isisindo sesistimu iyonke futhi kuthuthukise ukuthembeka. Uhlelo lokulawula olusatshalaliswa olusekelwe ku-SIC lungasusa ama-90% ama-lead kanye nezixhumi ezisetshenziswa ezinhlelweni zokulawula izihlangu ze-elekthronikhi zendabuko. Lokhu kubalulekile ngoba izinkinga zama-lead kanye nezixhumi ziphakathi kwezinkinga ezivame kakhulu ezihlangana nazo ngesikhathi sokungasebenzi ezindizeni zezentengiselwano zanamuhla.
Ngokusho kokuhlolwa kwe-USAF, ukusetshenziswa kwezinto zobuchwepheshe ze-SiC ezithuthukisiwe ku-F-16 kuzonciphisa isisindo sendiza ngamakhulu amakhilogremu, kuthuthukise ukusebenza kahle kanye nokusebenza kahle kukaphethiloli, kwandise ukuthembeka kokusebenza, futhi kunciphise kakhulu izindleko zokulungisa kanye nesikhathi sokungasebenzi. Ngokufanayo, izinto zobuchwepheshe ze-SiC nezinzwa zingathuthukisa ukusebenza kwezindiza zezentengiselwano, ngenzuzo eyengeziwe yezomnotho ebikiwe ezigidini zamaRandi ngendiza ngayinye.
Ngokufanayo, ukusetshenziswa kwezinzwa ze-elekthronikhi ze-SiC ezishisa kakhulu kanye nama-elekthronikhi ezinjinini zezimoto kuzokwenza kube lula ukuqapha nokulawula ukushisa okungcono, okuholela ekushiseni okuhlanzekile nokuphumelelayo. Ngaphezu kwalokho, uhlelo lokulawula i-elekthronikhi lwenjini ye-SiC lusebenza kahle ngaphezu kuka-125°C, okunciphisa inani lama-lead kanye nezixhumi engxenyeni yenjini futhi kuthuthukise ukuthembeka kwesikhathi eside kohlelo lokulawula imoto.
Amasathelayithi ezentengiselwano anamuhla adinga ama-radiator ukuthi asuse ukushisa okukhiqizwa yi-electronics ye-spacecraft, kanye nezihlangu zokuvikela i-electronics ye-spacecraft emisebeni yasemkhathini. Ukusetshenziswa kwe-SiC electronics emkhathini kunganciphisa inani lama-lead kanye nezixhumi kanye nosayizi kanye nekhwalithi yezihlangu ze-radiation ngoba i-SiC electronics ayikwazi ukusebenza kuphela emazingeni okushisa aphezulu, kodwa futhi inokumelana okunamandla kwe-amplitude-radiation. Uma izindleko zokwethula i-satellite e-Earth orbit zilinganiswa ngobuningi, ukunciphisa ubukhulu kusetshenziswa i-SiC electronics kungathuthukisa umnotho kanye nokuncintisana kwemboni ye-satellite.
Imikhumbi-mkhathi esebenzisa amadivayisi e-SiC amelana nokushisa okuphezulu ingasetshenziswa ukwenza imisebenzi enzima kakhulu ezungeze uhlelo lwelanga. Esikhathini esizayo, lapho abantu benza imisebenzi ezungeze ilanga kanye nobuso bamaplanethi ohlelweni lwelanga, amadivayisi e-SiC kagesi anezimpawu ezinhle kakhulu zokumelana nokushisa okuphezulu kanye nemisebe azodlala indima ebalulekile emikhumbi-mkhathi esebenza eduze kwelanga, ukusetshenziswa kwamadivayisi e-SiC kagesi kunganciphisa ukuvikelwa kwemishini yemikhumbi-mkhathi kanye nokushisa, Ngakho-ke kungafakwa amathuluzi esayensi engeziwe emotweni ngayinye.
Isikhathi sokuthunyelwe: Agasti-23-2022