Alumina fiber ntau yog polycrystalline inorganic fiber ntau tsim los ntawm txhuas oxide, feem ntau muaj silicon dioxide raws li ib tug additive rau stabilize lub crystalline theem. Raws li morphology, nws tuaj yeem muab faib ua cov fibers luv, cov fibers txuas ntxiv, thiab whiskers.
Cov fiber ntau no nthuav tawm lub zog siab, ua haujlwm zoo thaum tshav kub kub, thiab tiv thaiv cov tshuaj tiv thaiv corrosion, nrog rau lub sijhawm ntev kev pabcuam kub ntawm 1300-1400 degree. Nws nta qis thermal conductivity, qis thermal shrinkage, thiab tsis tshua muaj cua sov muaj peev xwm, thiab yog tsim rau siv nyob rau hauv acidic ib puag ncig, oxidizing los yog txo cua sov, thiab lub tshuab nqus tsev tej yam kev mob. Nws cov ntawv thov tseem ceeb suav nrog thermal rwb thaiv tsev hauv ob sab phlu rau high-temperature industrial furnaces, catalyst support, thiab reinforcements for composite material. Cov txheej txheem tseem ceeb ntawm kev tsim khoom yog cov txheej txheem sol-gel.