Lisebelisoa tsa letsopa tsa Aluminake thepa ea letsopa e sebetsang hantle haholo e entsoeng haholo-holo ka aluminium oxide. Hangata li etsoa ka mekhoa ea ho sintering ea mocheso o phahameng. Ho latela litaba tsa alumina, li arotsoe ka lihlopha tsa bohloeki bo tlase (75%-85% Al₂O₃), bohloeki bo mahareng (96% Al₂O₃), le bohloeki bo phahameng (≥99% Al₂O₃). Li tšoauoa ka sebopeho se teteaneng sa microstructure le thepa e tsitsitseng ea lik'hemik'hale, li-substrate tsena li bontša matla a ikhethang a mechini, khanyetso ea mocheso o phahameng le ho thibela motlakase. Li sebelisoa haholo e le thepa ea motheo ea lisebelisoa tsa elektroniki, litsamaisong tsa motlakase, lifofaneng le liindastering tse ling tse tsoetseng pele.
Melemo ea Li-substrate tsa Alumina Ceramic:
Ho Sireletsa Motlakase ka Mokhoa o Ikhethang
Ka resistivity e phahameng (>10¹⁴ Ω·cm) le dielectric constant e tlase (8-10), liserami tsa alumina li arola maqhubu a motlakase ka katleho, li thibela ho khaoha ha potoloho libakeng tse nang le maqhubu a phahameng kapa a motlakase o phahameng.
Ho khanna ho Phahameng ha Thermal
Li-substrate tse nang le alumina ea 96% li fana ka phallo ea mocheso ea 24-28 W/(m·K), e nolofalletsang ho qhala ha mocheso ka katleho ho tsoa likarolong tsa elektroniki ho thibela ho chesa haholo le ho eketsa nako ea bophelo ba sesebelisoa.
Matla a Phahameng a Mechini
Matla a ho kobeha a 300-400 MPa, hammoho le bothata bo phahameng (bothata ba Mohs 9) le ho hanyetsa ho tsofala, li netefatsa ho tšoarella maemong a thata a ts'ebetso.
Botsitso bo Matla ba Lik'hemik'hale
Li hanela li-acid, alkali, oxidation le mongobo, li-substrate tsa alumina li boloka botsitso ba ts'ebetso esita le mochesong o phahameng (ho fihlela ho 1600°C) kapa libakeng tse senyang.
Tlhahiso e Nepahetseng
Ho sebetsa ka nepo ho dumella boreledi ba bokaholimo ba boemo ba micron, ho fihlela ditlhoko tse thata tsa boholo bakeng sa ditshebediso tse kang ho paka ha semiconductor.
Nako ea poso: Pulungoana-13-2025