Silicon carbide semiconductor zinthu

Silicon carbide (SiC)Semiconductor material ndiye okhwima kwambiri pakati pa wide band gap semiconductors opangidwa. Zida za SiC semiconductor zili ndi kuthekera kwakukulu kogwiritsa ntchito kutentha kwambiri, ma frequency apamwamba, mphamvu yayikulu, ma photoelectronics ndi zida zolimbana ndi ma radiation chifukwa cha kusiyana kwawo kwakukulu kwa bandi, gawo lamagetsi losweka kwambiri, kukhathamiritsa kwamafuta kwambiri, kuyenda kwa ma elekitironi kwanthawi yayitali komanso kukula kochepa. Silicon carbide ili ndi ntchito zambiri: chifukwa cha kusiyana kwake kwa bandi, imatha kugwiritsidwa ntchito kupanga ma diode otulutsa kuwala kwa buluu kapena ma ultraviolet detectors omwe sakhudzidwa ndi kuwala kwa dzuwa; Chifukwa magetsi kapena magetsi amatha kulekerera kasanu ndi katatu kuposa silicon kapena gallium arsenide, makamaka yoyenera kupanga zipangizo zamphamvu kwambiri zamagetsi monga ma diode apamwamba kwambiri, ma triode amphamvu, silicon yoyendetsedwa ndi zida za microwave; Chifukwa cha kuthamanga kwamphamvu kwa ma elekitironi kusamuka kwapamwamba, kumatha kupangidwa kukhala zida zosiyanasiyana zapamwamba (RF ndi microwave);Silicon carbidendi kondakitala wabwino wa kutentha ndi kuchititsa kutentha bwino kuposa zinthu zina zonse semiconductor, zomwe zimapangitsa zipangizo silicon carbide kugwira ntchito pa kutentha kwambiri.

Mwachitsanzo, APEI ikukonzekera kupanga makina ake oyendetsa magalimoto a DC a NASA a Venus Explorer (VISE) pogwiritsa ntchito zida za silicon carbide. Akadali mu gawo la mapangidwe, cholinga chake ndikuyika maloboti owunikira pamwamba pa Venus.

Kuwonjezera apo, silicon carbideali amphamvu ionic covalent chomangira, ali kuuma mkulu, matenthedwe madutsidwe madutsidwe pa mkuwa, zabwino kutentha dissipation ntchito, kukana dzimbiri ndi wamphamvu kwambiri, kukana ma radiation, kukana kutentha kwambiri ndi kukhazikika kwabwino kwa mankhwala ndi katundu wina, ali ndi ntchito zosiyanasiyana m'munda wa sayansi ya zakuthambo. Mwachitsanzo, kugwiritsa ntchito zida za silicon carbide pokonzekera ndege zapamlengalenga, ofufuza kuti azikhala ndikugwira ntchito.