Txog alumina ceramics

Alumina ceramics yog cov khoom siv ceramic nrog alumina (Al2O3) ua lub cev tseem ceeb, siv rau tuab zaj duab xis ua ke kev ncig. Alumina ceramics muaj cov coj zoo, lub zog ntawm lub zog thiab siab kub. Nws yuav tsum nco ntsoov tias kev tu ultrasonic yog qhov yuav tsum tau ua. Alumina ceramics yog hom ntawm ceramics uas muaj qhov siv ntau. Vim tias nws cov khoom muaj zog, nws tau dhau los ua ntau dua thiab siv dav hauv zej zog niaj hnub kom tau raws li qhov xav tau ntawm kev siv txhua hnub thiab cov khoom tshwj xeeb.

qeb

Alumina ceramics tau muab faib ua hom siab-purity thiab hom zoo tib yam.

High-purity alumina ceramics yog cov khoom siv ceramic nrog cov ntsiab lus Al2O3 ntau dua 99.9%. Vim tias lawv qhov kub siab sintering txog qhov siab txog 1650-1990 wave thiab qhov kis tau tus mob yoj yog li 1 txog 6 μm, lawv feem ntau ua rau molten iav los hloov platinum crucibles; siv nws lub teeb xa hluav taws xob Nws tuaj yeem siv ua sodium sodium ຫລອດ raj, thiab nws tuaj yeem raug siv los ua hluav taws xob sib xyaw ua ke thiab cov khoom siv hluav taws xob ntau hauv cov khoom siv hluav taws xob.

Ordinary alumina ceramics tau muab faib ua 99 cov pob zeb plooj, 95 plooj (veneers), 90 plooj (porcelain), 85 plooj (porcelain) thiab lwm yam ntxiv raws li Al2O3 cov ntsiab lus sib txawv. Qee lub sij hawm cov neeg uas muaj 80% lossis 75% Al2O3 cov ntsiab lus kuj tseem cais raws li dog dig alumina ceramic series. Ntawm lawv, 99 alumina cov khoom siv plooj (porcelain) yog siv los ua qhov kub ntawm qhov cub, cov hluav taws xob refractory tub roj thiab cov ntaub ntawv hnav tshwj xeeb, xws li cov kabmob ceramic, cov ntsaws ruaj ruaj ceramic thiab cov dej dej valve; 95 alumina cov plooj (porcelain) feem ntau yog siv los ua cov khoom tiv thaiv corrosion thiab hnav-resistant; Vim tias ib feem ntawm talc feem ntau xyaw ua ke, kev ua haujlwm ntawm hluav taws xob thiab lub zog muaj zog dua, thiab nws tuaj yeem raug ntim nrog molybdenum, niobium, tantalum thiab lwm yam hlau, thiab qee qhov siv los ua lub tshuab nqus hluav taws xob