Cov khoom siv alumina ceramicyog cov khoom siv ceramic ua tau zoo uas feem ntau yog ua los ntawm txhuas oxide. Lawv feem ntau yog tsim los ntawm cov txheej txheem sintering kub siab. Nyob ntawm cov ntsiab lus alumina, lawv raug faib ua qib qis-purity (75% -85% Al₂O₃), nruab nrab-purity (96% Al₂O₃), thiab siab-purity (≥99% Al₂O₃) qib. Tus cwj pwm los ntawm cov qauv microstructure ntom ntom thiab cov khoom siv tshuaj ruaj khov, cov substrates no qhia txog lub zog kho tshuab zoo heev, tiv taus kub siab, thiab rwb thaiv hluav taws xob. Lawv siv dav ua cov ntaub ntawv tseem ceeb hauv cov khoom siv hluav taws xob, cov tshuab fais fab, aerospace, thiab lwm yam kev lag luam siab heev.
Cov txiaj ntsig ntawm Alumina Ceramic Substrates:
Kev rwb thaiv hluav taws xob zoo tshaj plaws
Nrog lub zog tiv taus siab (>10¹⁴ Ω·cm) thiab qhov tsis hloov pauv dielectric qis (8-10), alumina ceramics zoo cais cov hluav taws xob tam sim no, tiv thaiv kev luv luv ntawm lub voj voog hauv qhov chaw muaj zaus siab lossis siab voltage.
Kev Ua Haujlwm Thermal Siab
Cov khoom siv uas muaj 96% alumina muaj cov thermal conductivity ntawm 24-28 W/(m·K), ua rau cov khoom siv hluav taws xob tsis kub dhau thiab ua kom lub cuab yeej siv tau ntev.
Lub Zog Kho Kom Zoo Dua
Lub zog flexural ntawm 300-400 MPa, ua ke nrog qhov nyuaj siab (Mohs hardness 9) thiab kev hnav tsis kam, ua kom muaj kev ruaj khov hauv cov xwm txheej ua haujlwm nyuaj.
Kev Ruaj Ntseg Tshuaj Muaj Zog
Tiv taus cov kua qaub, alkalis, oxidation, thiab noo noo, alumina substrates tswj kev ua haujlwm ruaj khov txawm tias nyob rau qhov kub siab (txog li 1600 ° C) lossis hauv cov chaw muaj corrosive.
Kev Tsim Khoom Zoo
Kev ua haujlwm precision tso cai rau qhov micron-level smoothness, ua tau raws li qhov yuav tsum tau ua kom nruj rau cov ntawv thov xws li kev ntim khoom semiconductor.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-13-2025