Okiside ya aluminium ni ikintu cyera cyangwa gitukura gisa n'umutuku ufite ubunini bwa 3.5-3.9g / cm3, aho gushonga 2045, hamwe na 2980 a. Ntishobora gushonga mumazi ariko irashonga gato muri alkali cyangwa aside. Hariho ubwoko bubiri bwa hydrat: monohydrate na trihydrate, buri kimwe gifite a na y ihinduka. Gushyushya hydrat kuri 200-600 ℃ birashobora kubyara alumina ikora hamwe na sisitemu zitandukanye. Mubikorwa bifatika, Y-ikora alumina ikoreshwa cyane. Ubukomere (Hr) bwa alumina ni 2700-3000, Modulus yumusore ni 350-410 GPa, ubushyuhe bwumuriro ni 0,75-1.35 / (m * h. ℃), naho coefficente yo kwagura umurongo ni 8.5X10-6 ℃ -1 (ubushyuhe bwicyumba -1000 ℃). Isuku ryinshi ultrafine alumina ifite ibyiza byo kwera cyane, ingano ntoya, ubwinshi bwinshi, imbaraga zubushyuhe bwinshi, kurwanya ruswa, no gucumura byoroshye. Isuku ryinshi ultrafine alumina ifite ibiranga nkuburyo bwiza kandi bumwe buteganijwe, imiterere yihariye yimbibi, imiterere yubushyuhe bwo hejuru, imikorere myiza yo gutunganya, kurwanya ubushyuhe, hamwe nubushobozi bwo guhuza nibikoresho bitandukanye.
Gukoresha alumina-yera cyane
Alumina yuzuye ifite isuku irwanya ruswa, irwanya ubushyuhe bwinshi, ubukana bwinshi, imbaraga nyinshi, irwanya kwambara, irwanya okiside, hamwe nubushuhe bwiza hamwe nubuso bunini. Ikoreshwa cyane mubikorwa byubuhanga buhanitse nka bioceramics, ceramics nziza, catalizike ya chimique, isi idasanzwe ifu ya gene fluorescent ifu, ibyuma byuzuzanya byumuzingi, ibikoresho bitanga urumuri rwikirere, ibyuma byorohereza ibyuka, hamwe nibikoresho byo kwinjiza infragre.
Igihe cyo kohereza: Gashyantare-01-2024