Nezve Silicon Carbide uye SiC ceramics

Silicon Carbide ine yakanakisa kuramba kukoromoka, yakakwira mechanicha simba, yakakwira yekupisa conductivity, yakadzika kwazvo coefficient yekuwedzera kwemafuta, uye zvirinani kupisa kwekuvhunduka kupfuura alumincell namet yakanyanya kupisa. Silicon carbide inoumbwa netetrahedra yekabhoni uye maatomu esilicon ane mabhondi akasimba mucrystal lattice. Izvi zvinogadzira zvinhu zvakaoma uye zvakasimba. Silicon carbide hairwiswe nechero acids kana alkalis kana munyu wakanyunguduka unosvika 800ºC. Mumhepo, SiC inoumba inodzivirira silicon oxide coating pa1200ºC uye inokwanisa kushandiswa kusvika 1600ºC. Iyo yakakwirira yekupisa conductivity yakasanganiswa nekuwedzera kwekushisa kwekuwedzera uye simba repamusoro rinopa ichi chinhu chakasarudzika chekupisa kutyisa hunhu. Silicon carbide ceramics ine zviyo zvishoma kana kusava nemuganho tsvina inochengetedza simba radzo kusvika pakupisa kwakanyanya, kusvika 1600ºC pasina kurasikirwa kwesimba. Kuchena kwemakemikari, kuramba kurwiswa kwemakemikari patembiricha, uye kuchengetedza simba pakupisa kwakanyanya kwakaita kuti chinhu ichi chizivikanwe zvakanyanya sewafer tray inotsigira uye paddles mune semiconductor mavira. Thcell nameelectrical conduction yezvinhu yakatungamira mukushandiswa kwayo mukupokana kudziyisa zvinhu zvemavira emagetsi, uye sechinhu chakakosha mune thermistors (tembiricha inosiyana resistors) uye mune varistors (voltage variable resistors). Zvimwe zvinoshandiswa zvinosanganisira zviso zvechisimbiso, mahwendefa ekupfeka, mabheya uye liner tubes.

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Nguva yekutumira: Jun-05-2018
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