Qhov txawv ntawm Crystal thiab iav
Crystal thiab iav zoo li zoo sib xws, tab sis lawv yog ob yam sib txawv kiag li. Lawv lub ntsiab sib txawv yog raws li nram no:
Cov khoom sib txawv
Crystal yog ib daim ntawv crystalline ntawm silicon dioxide, thaum iav tsuas yog ib qho sib xyaw molten uas muaj silicon dioxide.
Cov teebmeem sib txawv
Cov iav tsuas yog siv cov khoom siv kho kom zoo nkauj xwb, thaum siv lead ua, ntxiv rau nws cov khoom siv kho kom zoo nkauj, kuj muaj cov khoom siv piezoelectricity thiab muaj txiaj ntsig tshwj xeeb rau kev noj qab haus huv.
Tus nqi sib txawv
Crystal yog ob peb zaug, txawm tias kaum tawm zaus, kim dua iav.
Cov khoom sib txawv ntawm lub cev
1. Crystal yog cov khoom siv crystalline nrog siab hardness (Mohs 7), thaum iav muaj qis hardness (Mohs 5.5). Crystal tuaj yeem khawb iav, tab sis tsis yog vice versa.
2. Crystal yog cov khoom siv crystalline nrog cov thermal conductivity zoo, zoo li txias rau qhov kov nrog tus nplaig. iav xav tias sov.
3. Siv lub tshuab ntsuas polarizing, siv lead ua yog translucent, thaum iav tsis yog.
Peb tuaj yeem yooj yim paub qhov txawv ntawm cov siv lead ua thiab iav raws li lawv lub cev sib txawv.
Cov txheej txheem sib txawv
Cov iav tuaj yeem kub - nrum, txuag cov ntaub ntawv thiab kev ua haujlwm, ua rau cov nqi qis dua. Crystal, yog cov khoom siv crystalline, tsis tuaj yeem thim rov qab ib zaug los ntawm cua sov, yog li nws tsis tuaj yeem kub - nrum thiab yuav tsum tau ua tiav siv txoj kev txias xws li txiav thiab sib tsoo. Qhov no yog nkim ntau ntawm cov ntaub ntawv thiab kev ua haujlwm, ua rau cov nqi ntau dua. Crystal muaj siab hardness thiab tsis yooj yim khawb. Cov iav muaj qhov hardness tsawg thiab yog khawb tau yooj yim. Crystal muaj qhov ruaj khov zoo thiab yuav tsis ua kom tsis muaj xim ntev ntev - siv, thaum iav yog qhov ua rau yellowing.
