Silicon carbide (SiC) chinhu checeramic chinogara chirimwa sekristaro imwechete ye semiconductor application. Nekuda kweiyo inherent zvinhu zvivakwa uye single-crystal kukura, ndeimwe yeakasimba kwazvo semiconductor zvinhu pamusika. Kusimba uku kunosvika kure kupfuura kushanda kwayo kwemagetsi.
Kugara Kwenyama
SiC's physical durability inonyatso kuratidzwa nekuongorora ayo asiri eelectronic applications: sandpaper, extrusion dies, bulletproof vest plates, high-performance brake disks, uye flame igniters. SiC inokwenya chinhu chinopesana nekuzvikwenya. Kana yakashandiswa mu-high-performance brake disks, kushorwa kwavo kwekugara kwenguva refu munzvimbo dzakaoma kunoiswa pamuedzo. Kuti ishandiswe senge bulletproof vest ndiro, SiC inofanirwa kuve nepamusoro pemuviri uye simba rekuita.
Kemikari uye Kugara Kwemagetsi
SiC inozivikanwa nekusagadzikana kwemakemikari; haina kukanganiswa kunyange nemakemikari ane hasha, akadai sealkali nemunyu wakanyungudutswa, kunyange kana akaiswa kune tembiricha inosvika 800 °C. Nekuda kwekuramba kwayo kurwiswa nemakemikari, SiC haiparadzi uye inokwanisa kumira munzvimbo dzakaomarara kusanganisira kuratidzwa nemhepo ine mwando, mvura yemunyu, uye zvakasiyana siyana zvemakemikari.
Nekuda kweiyo yakakwira simba bandgap, SiC inoshingirira zvakanyanya kunyonganiso dzemagetsi uye zvinoparadza zvinokonzerwa nemwaranzi. SiC zvakare inopokana nekukuvadza pamazinga epamusoro esimba kupfuura Si.
Thermal Shock Resistance
SiC's resistance kune thermal shock ndechimwe chinhu chakakosha. Kana chinhu chikaratidzirwa kune tembiricha yakanyanyisa, kuvhunduka kunoitika (kureva, kana zvikamu zvakasiyana zvechinhu zviri pakupisa kwakasiyana zvakanyanya). Nekuda kweiyi tembiricha gradient, mwero wekuwedzera kana kukanda kunosiyana pakati pezvikamu zvakasiyana. Thermal shock inogona kukonzera kutyoka mune brittle zvinhu, asi SiC inopikisa zvakanyanya kune izvi mhedzisiro. Thermal shock resistance yeSiC inokonzerwa nekukwira kwayo kwekushisa kwekushisa (350 W / m / K kwekristaro imwe chete) uye kuderera kwekuwedzera kwekushisa mukuenzanisa nehuwandu hwezvinhu zve semiconductor.
SiC zvemagetsi (semuenzaniso, MOSFETs uye Schottky diodes) anoshandiswa mumashandisirwo ane hutsinye nharaunda, senge maHEV nemaEV, nekuda kwekusimba kwazvo. Icho chinhu chakanakisa chekushandisa mune semiconductor application inoda kuomarara uye kuvimbika nekuda kwekusimba kwayo kwemuviri, makemikari, uye magetsi.
