Ifu ya Alumina na α-ubwoko bwa alumina powaer
Ibintu bitanu biranga ifu ya alumina yuzuye
1. Kurwanya imiti;
2. alumina-yera cyane, ibirimo alumina birenze 99%;
3. Kurwanya ubushyuhe bwinshi, gukoresha bisanzwe kuri 1600 ℃, igihe gito 1800 ℃;
4. Kurwanya ubukonje nubushyuhe butunguranye, ntibyoroshye guturika;
5. Ifata guswera kandi ifite ubucucike bukabije.
1. Gukoresha ifu ya α ubwoko bwa alumina
Muri kasitori ya kirisiti yifu ya α-ya alumina, ion ya ogisijeni ipakiye hafi muri hexagons, kandi Al3 + ikwirakwizwa muburyo bukomatanyije muri octahedral ihuza ikigo kizengurutswe na ion ogisijeni.Ingufu za lattice nini cyane, aho gushonga hamwe no guteka biri hejuru cyane.α-okiside ya Aluminium ntishobora gushonga mumazi na aside.Yitwa kandi oxyde ya aluminium mu nganda.Nibikoresho fatizo byibanze byo gukora aluminium;irakoreshwa kandi mu kubumba amatafari atandukanye yangiritse, umusaraba wangiritse, imiyoboro itavunika, hamwe nibikoresho byo gupima ubushyuhe bwo hejuru;irashobora kandi gukoreshwa nka abrasives na flame retardants.Abakozi, abuzuza, nibindi.;ubuziranenge-α ubwoko bwa alumina nabwo nibikoresho fatizo byo gukora corundum artificiel, ruby artificiel na safiro;irakoreshwa kandi mukubyara umusaruro munini ugezweho wuzuzanya.
Alumina ikora ifite ubushobozi bwo guhitamo gaze, imyuka y'amazi hamwe nubushuhe bwamazi.Iyo adsorption imaze guhaga, irashobora kubyutswa no gushyushya nka 175-315 ° C kugirango ikureho amazi.Adsorption n'izuka birashobora gukorwa inshuro nyinshi.Usibye gukoreshwa nka desiccant, irashobora kandi kwamamaza imyuka yamavuta yo kwisiga ava muri ogisijeni yanduye, hydrogène, dioxyde de carbone, gaze naturel, nibindi.
