Alumina ceramics tau muab faib ua hom purity siab thiab hom zoo tib yam.
Lub high-purity alumina ceramic system yog cov khoom siv ceramic nrog Al2O3 cov ntsiab lus ntau dua 99.9 feem pua. Vim tias nws qhov kub thiab txias txog li 1650-1990 degree, qhov sib kis wavelength yog 1-6 μ m. Feem ntau, molten iav yog tsim los hloov platinum crucible; Cov qauv siv hluav taws xob tuaj yeem siv los ua lub teeb sodium raj vim nws lub teeb xa hluav taws xob thiab alkali hlau corrosion kuj; Nws tuaj yeem siv los ua kev sib xyaw ua ke hauv substrate thiab cov khoom siv hluav taws xob ntau zaus hauv kev lag luam hluav taws xob.
Ordinary alumina ceramics tuaj yeem muab faib ua 99 plooj (porcelain), 95 plooj (porcelain), 90 plooj (porcelain) thiab 85 plooj (porcelain) raws li cov ntsiab lus ntawm Al2O3. Qee zaum cov uas muaj Al2O3 cov ntsiab lus ntawm 80 feem pua lossis 75 feem pua tseem tuaj yeem raug cais raws li cov alumina ceramics zoo tib yam. 99 alumina ceramic cov ntaub ntawv yog siv los ua cov khoom siv kub kub, cov tub rauv refractory thiab cov khoom siv tshwj xeeb hnav, xws li cov kabmob ceramic, cov ntsaws ruaj ruaj thiab cov dej valve; 95 alumina ceramics feem ntau yog siv los ua corrosion resistant thiab hnav-resistant qhov chaw; 85 ceramics tuaj yeem raug kaw nrog molybdenum, niobium, tantalum thiab lwm yam hlau, thiab qee qhov ntawm lawv tuaj yeem siv los ua cov khoom siv hluav taws xob, vim qee qhov lawv feem ntau sib xyaw nrog talc, uas txhim kho cov khoom siv hluav taws xob thiab lub zog txhua yam.
