1, zoo thermal stability
Lub thermal expansion coefficient ntawm quartz iav yog me me, tuaj yeem tiv taus qhov kub thiab txias hloov, quartz iav yog rhuab mus txog 1100 degree, thiab nws yuav tsis tawg rau hauv cov dej kub ib txwm.
2, zoo lub teeb kis tau tus mob
Quartz iav muaj lub teeb kis tau zoo nyob rau hauv tag nrho cov spectral band los ntawm ultraviolet mus rau infrared, thiab pom lub teeb transmittance yog ntau tshaj 93%, tshwj xeeb tshaj yog nyob rau hauv cheeb tsam ultraviolet spectral, transmittance mus txog ntau tshaj 80.
3, zoo hluav taws xob rwb thaiv tsev kev ua tau zoo
Tus nqi tiv thaiv ntawm quartz iav yog sib npaug rau 10, 000 npaug ntawm cov iav zoo tib yam, uas yog cov khoom siv hluav taws xob zoo dua thiab muaj cov khoom siv rwb thaiv tsev zoo txawm tias qhov kub thiab txias.
Vim nws lub cev zoo thiab tshuaj lom neeg, quartz iav yog dav siv nyob rau hauv ntau yam xws li hluav taws xob lub teeb qhov chaw, semiconductor, optical kev sib txuas lus, tub rog, metallurgy, tsev cov ntaub ntawv, chemistry, machinery, hluav taws xob, kev tiv thaiv ib puag ncig thiab hais txog.
4, kub tsis kam
Lub softening point kub ntawm quartz iav yog hais txog 1730 degree, uas yuav siv tau rau lub sij hawm ntev ntawm 1100 degree, thiab qhov kub ntawm lub sij hawm luv luv siv tau mus txog 1450 degree.
5, corrosion kuj
Ntxiv nrog rau hydrofluoric acid, quartz iav yuav luag tsis hnov mob nrog lwm cov kua qaub, thiab nws cov kua qaub tiv thaiv yog 30 npaug ntawm cov ceramics, 150 npaug ntawm cov hlau tsis muaj steel, tshwj xeeb tshaj yog nws cov tshuaj ruaj khov ntawm qhov kub thiab txias, uas tsis sib haum nrog lwm yam khoom siv engineering. .
6. Qhov tsis zoo: tsis yooj yim.
Related tswvyim
Quartz tub
Quartz iav raj yog ib qho tshwj xeeb kev siv tshuab iav ua los ntawm silica, uas yog cov khoom siv yooj yim heev. Quartz iav muaj cov khoom zoo ntawm lub cev thiab tshuaj lom neeg
iav raj
Cov iav raj yog ib yam ntawm cov raj uas tsis yog xim hlau, uas yog ib hom iav nrog sodium oxide (Na2O), boron oxide (B2O2) thiab silicon dioxide (SIO2) ua cov khoom siv hauv paus. Nws cov kev ua tau zoo tau raug lees paub los ntawm txhua qhov chaw ntawm lub neej hauv ntiaj teb, piv nrog cov iav dav dav, tsis muaj kev phom sij, nws cov khoom siv hluav taws xob, thermal stability, dej tsis kam, alkali tsis kam, acid tsis kam thiab lwm yam khoom muaj txiaj ntsig zoo, tuaj yeem ua tau zoo. dav siv hauv kev lag luam tshuaj, aerospace, tub rog, tsev neeg, tsev kho mob thiab lwm yam kev lag luam, nrog rau kev txhawb nqa zoo thiab muaj txiaj ntsig zoo. Cov tsos ntawm cov iav zoo li no hauv peb lub teb chaws yog lwm qhov kev hloov pauv tshiab hauv kev lag luam khoom siv yooj yim.
Silicon dioxide
Silicon dioxide, tshuaj lub sij hawm, ntshiab silicon dioxide tsis muaj xim, khoom nyob rau hauv chav tsev kub, tshuaj formula SiO? , insoluble hauv dej. Insoluble nyob rau hauv acid, tab sis soluble nyob rau hauv hydrofluoric acid thiab kub concentrated phosphoric acid, yuav ua tau nrog molten alkali. Muaj ob hom crystalline silica thiab amorphous silica nyob rau hauv qhov xwm txheej. Silica muaj ntau yam kev siv, feem ntau yog siv hauv iav, dej iav, tais diav, enamel, cov ntaub ntawv refractory, airgel xav, ferrosilicon, molding xuab zeb, elemental silicon, cement, thiab lwm yam. Nyob rau hauv ancient sij hawm, silica kuj siv los ua porcelain glaze. thiab carcass. Ordinary pob zeb yog tsim los ntawm silica thiab calcium carbonate