Sintered SiC Ceramics: Melemo ea SiC Ceramic Ballistic Products
Lihlahisoa tsa silicon carbide ceramic bulletproofli ntse li tsebahala haholoanyane lefapheng la ts'ireletso ea botho le ea sesole ka lebaka la ts'ebetso le ts'ebetso ea tsona e ntle haholo. Li-ceramics tsena li na le SiC content ≥99% le hardness (HV0.5) ≥2600, e leng se etsang hore e be thepa ea khetho bakeng sa lisebelisoa tsa ballistic tse kang li-bulletproof vests le lisebelisoa tsa tšireletso bakeng sa litanka le likoloi tsa lihlomo.
Sehlahisoa se ka sehloohong sa letoto lena ke silicon carbide ceramic bulletproof sheet. Boima ba eona bo tlase le boima bo bobebe bo etsa hore e tšoanelehe haholo bakeng sa thepa e thibelang likulo ea masole ka bomong, haholo-holo e le lesela le ka hare la liphahlo tse thibelang likulo. Ho feta moo, e fana ka melemo ea bohlokoa mabapi le ho tšoarella, matla le botsitso ba mocheso.
Silicon carbide (SiC) ceramics e na le mehaho e 'meli ea kristale, cubic β-SiC le hexagonal α-SiC. Li-ceramics tsena li na le maqhama a matla a covalent, thepa e ntle ea mochini, ho hanyetsa oxidation, ho hanyetsa ho roala le coefficient e tlase ea likhohlano ho feta lirafshoa tse ling tse kang alumina le boron carbide. Ts'ebetso ea tsona e phahameng ea mocheso, coefficient e nyane ea katoloso ea mocheso, le ho hanyetsa ho hoholo ha mocheso oa mocheso le ho bola ha lik'hemik'hale ho tsoela pele ho nolofatsa ts'ebeliso ea bona e pharalletseng.
Molao-motheo o thibelang likulo oa silicon carbide ceramics o holim'a bokhoni ba eona ba ho qhala le ho monya matla a likulo. Le ha lisebelisoa tsa setso tsa boenjiniere li monya matla ka deformation ea polasetiki, lisebelisoa tsa ceramic, ho kenyeletsoa silicon carbide, li etsa joalo ka li-microfractures.
Ts'ebetso ea ho monya matla ea silicon carbide bulletproof ceramics e ka aroloa ka mekhahlelo e meraro. Nakong ea ts'ebetso ea pele ea ts'ebetso, kulo e otla holim'a ceramic, e senya bullet le ho senya bokaholimo ba ceramic, ho theha libaka tse nyenyane, tse thata tse arohaneng. Nakong ea khoholeho ea mobu, kulo e hlabang e tsoela pele ho senya sebaka sa lithōle, ho etsa lera le tsoelang pele la lithōle tsa ceramic. Qetellong, nakong ea likarolo tsa deformation, crack le fracture, ceramic e ba tlas'a khatello ea maikutlo, e lebisang ho phatloheng ha eona. Joale matla a setseng a qhaloa ke deformation ea thepa ea morao-rao.
Thepa ena e ntle haholo le mehato e meraro ea ho monya matla e thusa lihlahisoa tsa silicon carbide ceramic ballistic hore li fokolise ts'ebetso ea likulo ka nepo le ho li etsa hore li se be kotsi. Tekanyetso ea bulletproof e fihla boemong ba 4 ba Amerika, e fanang ka tšireletso e phahameng ebile ke khetho ea pele ea litsebi tsa sesole lefatšeng.
Ho akaretsa, li-ceramics tsa sintered silicon carbide le letoto la lihlahisoa tsa silicon carbide ceramic bulletproof li na le melemo e ikhethang mabapi le thepa ea mochini, botsitso ba mocheso, le katleho ea likulo. Ka thepa ea bona e phahameng, li-ceramics tsena li sebelisoa haholo e le lisebelisoa tsa lesela bakeng sa li-bulletproof vests le lisebelisoa tse sireletsang litanka le likoloi tsa lihlomo. Boima ba tsona bo tlase le boima bo bobebe bo li etsa hore e be tse loketseng bakeng sa ts'ireletso ea motho ka mong. Ha thekenoloji e ntse e tsoela pele, re ka lebella tsoelo-pele le ts'ebeliso ea lirafshoa tsena tse tsotehang ts'ireletsong ea botho le ea sesole.
Nako ea poso: Aug-24-2023