I-Silicon carbide semiconductor impahla

I-Silicon carbide (SiC)impahla ye-semiconductor iyona evuthwe kakhulu phakathi kwama-semiconductors egebe elibanzi athuthukisiwe. Izinto zokwakha ze-SiC semiconductor zinamandla amakhulu okusebenza kumazinga okushisa aphezulu, imvamisa ephezulu, amandla aphezulu, ama-photoelectronics namadivayisi amelana nemisebe ngenxa yegebe lazo lebhande elibanzi, insimu kagesi ephuka kakhulu, ukuqhutshwa kwe-thermal okuphezulu, ukuhamba okuphezulu kwe-electron saturation kanye nosayizi omncane. I-Silicon carbide inezinhlobonhlobo zezicelo: ngenxa yegebe elibanzi lebhande, ingasetshenziswa ukwenza ama-diode akhipha ukukhanya okuluhlaza okwesibhakabhaka noma ama-ultraviolet detectors angathintwa kancane ukukhanya kwelanga; Ngenxa yokuthi i-voltage noma inkambu kagesi ingabekezelelwa izikhathi eziyisishiyagalombili kune-silicon noma i-gallium arsenide, ifaneleka ngokukhethekile ukukhiqiza amadivaysi anamandla aphezulu-voltage njengama-diode aphezulu-voltage, i-triode yamandla, i-silicon elawulwayo kanye namadivayisi we-microwave enamandla amakhulu; Ngenxa yejubane eliphezulu lokufuduka kwe-electron saturation, ingenziwa ezinhlobonhlobo zemishini yemvamisa ephezulu (i-RF ne-microwave);I-silicon carbideingumqhubi omuhle wokushisa futhi iqhuba ukushisa kangcono kunanoma iyiphi enye impahla ye-semiconductor, eyenza amadivaysi e-silicon carbide asebenze emazingeni okushisa aphezulu.

Njengesibonelo esithile, i-APEI okwamanje ilungiselela ukuthuthukisa uhlelo lwayo lwe-DC motor drive system ye-NASA's Venus Explorer (VISE) isebenzisa izingxenye ze-silicon carbide. Kusesigabeni sokuklama, inhloso ukubeka amarobhothi okuhlola phezu kweVenus.

Ngaphezu kwalokho, isi-silicon carbideinesibopho esiqinile se-ionic covalent, inokuqina okuphezulu, ukuguquguquka okushisayo phezu kwethusi, ukusebenza kahle kokukhipha ukushisa, ukumelana nokugqwala kunamandla kakhulu, ukumelana nemisebe, ukumelana nokushisa okuphezulu kanye nokuzinza okuhle kwamakhemikhali nezinye izakhiwo, kunezinhlobonhlobo zezinhlelo zokusebenza emkhakheni wobuchwepheshe be-aerospace. Isibonelo, ukusetshenziswa kwezinto ze-silicon carbide ukulungiselela imikhumbi-mkhathi yosomkhathi, abacwaningi ukuze baphile futhi basebenze.