Izisekelo ze-Alumina ceramicziyizinto zokwakha ze-ceramic ezisebenza kahle kakhulu ezakhiwe kakhulu nge-aluminium oxide. Ngokuvamile zikhiqizwa ngezinqubo zokushisa okuphezulu. Kuye ngokuqukethwe kwe-alumina, zihlukaniswa zibe ubumsulwa obuphansi (75%-85% Al₂O₃), ubumsulwa obuphakathi (96% Al₂O₃), kanye nobumsulwa obuphezulu (≥99% Al₂O₃). Njengoba zibonakaliswa yisakhiwo esincane esiminyene kanye nezakhiwo zamakhemikhali ezizinzile, lezi zingxenye zibonisa amandla avelele okusebenza, ukumelana nokushisa okuphezulu, kanye nokufakwa kukagesi. Zisetshenziswa kabanzi njengezinto eziyisisekelo kuma-elekthronikhi, izinhlelo zamandla, izindiza, kanye neminye imboni ethuthukile.
Izinzuzo ze-Alumina Ceramic Substrates:
Ukufakwa Kokushiswa Kukagesi Okumangalisayo
Njengoba ine-resistivity ephezulu (>10¹⁴ Ω·cm) kanye ne-dielectric constant ephansi (8-10), i-alumina ceramics ihlukanisa ngempumelelo imisinga kagesi, ivimbele ukushoda kwesekethe ezindaweni ezinamaza aphezulu noma ezinamaza aphezulu.
Ukushisa Okuphezulu Kokushisa
Ama-substrate anokuqukethwe kwe-alumina okungu-96% anikeza ukuhanjiswa kokushisa okungu-24-28 W/(m·K), okuvumela ukushabalaliswa kokushisa okuphumelelayo okuvela ezingxenyeni zikagesi ukuvimbela ukushisa ngokweqile nokwandisa isikhathi sokuphila kwedivayisi.
Amandla Aphezulu Okusebenza Kwemishini
Amandla okugobeka angu-300-400 MPa, kuhlanganiswe nobunzima obuphezulu (ubulukhuni be-Mohs 9) kanye nokumelana nokuguguleka, kuqinisekisa ukuqina ezimweni zokusebenza ezidinga amandla.
Ukuqina Kwamakhemikhali Okuqinile
Njengoba imelana nama-acid, ama-alkali, i-oxidation, kanye nomswakama, ama-substrate e-alumina agcina ukuqina kokusebenza ngisho noma amazinga okushisa aphezulu (kufika ku-1600°C) noma ezindaweni ezigqwalayo.
Ukukhiqiza Ngokucophelela
Umshini wokulungisa kahle uvumela ukushelela kobuso obusezingeni le-micron, kuhlangatshezwane nezidingo eziqinile zobukhulu bezinhlelo zokusebenza ezifana nokupakishwa kwe-semiconductor.
Isikhathi sokuthunyelwe: Novemba-13-2025