Koj puas paub cov khoom siv ntawm quartz iav raj?
Raws li hom iav raj, quartz iav raj yog txawv los ntawm cov iav raj zoo tib yam. Cov khoom ntawm quartz iav raj yog zoo heev. Quartz iav yog ib qho khoom siv silica iav. Kev siv quartz iav yog dav heev. Quartz iav tuaj yeem siv tau. Nws yog siv los ua quartz phaj, quartz rods, quartz tes tsho, quartz iav teeb thiab quartz raj. Quartz iav feem ntau muab faib ua ob pawg: pob tshab quartz iav thiab opaque quartz iav (fused quartz). Pob tshab quartz iav tsuas muaj me me ntawm npuas, thiab muaj qhov sib txawv ntawm qhov muag pom thiab pom tseeb. Nws yog ua los ntawm siv lead ua los yog silicon tetrachloride thiab melted ntawm kub. Cov ntsiab lus ntawm SiO2 yog siab dua 99.95%, thiab lub siab-purity quartz iav yog 99.999%. Saum toj no, opaque quartz iav yog ua los ntawm veined quartz thiab quartz xuab zeb ua raw cov ntaub ntawv, uas yog melted ntawm kub kub, thiab muaj ntau tshaj 299.5% ntawm SiO.
Vim tias quartz iav yog lub cev pob txha tsim los ntawm cov tetrahedrons yooj yim, thiab cov silicon-oxygen daim ntawv cog lus muaj zog heev, cov qauv yog nruj, yog li cov neeg kho tshuab lub zog thiab kub ua hauj yog siab, thermal expansion coefficient me me, cov tshuaj stability kuj heev. zoo, thiab viscosity siab. , lub softening point kuj yog siab heev, thiab vim hais tias tsis muaj interstitial cations nyob rau hauv lub network, qhov ceev, conductivity thiab nruab nrab poob kuj yog me me.
Cov khoom siv ntawm quartz iav zoo dua li cov iav tawv thiab ceramics. Lub zog ntawm cov tshiab uas tsis yog-kho quartz iav fiber ntau yog 24100 × 106 Pa. Qhov me me quartz raj thiab cov khoom siv quartz iav tuaj yeem tiv taus siab heev. Yog tias muaj qhov tsis xws li macro, xws li npuas, cov khoom txawv teb chaws, tsis sib xws melting thiab residual stress, lawv yuav cuam tshuam nws lub zog thiab txo nws.
