Scandium oxide, tseem hu ua scandium trioxide, yog cov khoom dawb nrog lub cubic qauv ntawm lub ntiaj teb tsis tshua muaj sesquioxide, cov qauv molecular ntawm Sc2O3, lub melting point ntawm 2403 degree ± 20 degree, insoluble nyob rau hauv dej thiab soluble nyob rau hauv kub acid.
Scandium, ib yam khoom yooj yim, feem ntau yog siv rau hauv cov hlau, thiab scandium oxide kuj ua lub luag haujlwm tseem ceeb hauv cov ntaub ntawv ceramic. Piv txwv li, tetragonal zirconia ceramic cov ntaub ntawv, uas tuaj yeem siv los ua cov khoom siv hluav taws xob ntawm cov khoom siv roj oxide, muaj cov yam ntxwv tshwj xeeb. Cov conductivity ntawm xws li electrolytes yuav nce nrog qhov nce ntawm ambient kub thiab oxygen concentration nyob rau hauv ib puag ncig ntuj. Txawm li cas los xij, cov qauv molecular ntawm cov khoom siv ceramic no tsis tuaj yeem nyob ruaj khov ntawm nws tus kheej, thiab tsis muaj nqi tsim khoom lag luam; Nws yog ib qho tsim nyog yuav tau ntxiv qee cov ntaub ntawv uas tuaj yeem txiav txim siab cov qauv no kom ntseeg tau tias tus yam ntxwv qub.
Tsis tas li ntawd, silicon nitride, ib qho khoom siv hluav taws xob ceramic nrog lub zog siab thiab kub tsis kam, yog siv los ua densifier thiab stabilizer. Scandium oxide, raws li lub densifier, tuaj yeem tsim cov theem refractory Sc2Si2O7 ntawm ntug ntawm cov khoom zoo, yog li txo qhov kub-kub deformation ntawm engineering ceramics. Piv nrog rau lwm cov oxides, Scandium oxide tuaj yeem txhim kho qhov kub-kub txhua yam ntawm silicon nitride. Ntxiv me ntsis Sc2O3 rau UO2 nyob rau hauv qhov kub thiab txias reactor roj tuaj yeem tiv thaiv kev hloov pauv, lub cev loj thiab cov kab nrib pleb tshwm sim los ntawm kev hloov pauv ntawm UO2 rau U3O8.
Scandium oxide yog decomposed los ntawm scandium ntsev thaum nws rhuab. Nws tuaj yeem siv los ua cov khoom evaporation ntawm cov khoom siv semiconductor txheej, nrog rau lub wavelength adjustable khoom laser, high-txhais TV electron phom, hlau halide teeb, thiab lwm yam.
