Qhov sib txawv tseem ceeb ntawm iav thiab ceramics yog cov ceramics muaj crystalline lossis semi-crystalline lossis non-crystalline atomic qauv whereas lub atomic qauv ntawm iav yog non-crystalline.
Ceramics thiab iav muaj ntau daim ntawv thov uas yuav tsum muaj qhov zoo xws li hardness, rigidity, siab tiv thaiv tshav kub, corrosion, thiab lwm yam. Peb siv ntau yam khoom siv ceramic hauv lub neej niaj hnub. Ib txhia ntawm lawv yog cov lauj kaub tais diav, plooj (porcelain), cib, vuas, iav, cement, thiab lwm yam. Txawm hais tias peb tuaj yeem categorize iav raws li pawg ntawm cov khoom siv ceramic, muaj qhov sib txawv ntawm lawv nyob ntawm nws cov qauv atomic uas suav nrog nws cov yam ntxwv tshwj xeeb.
iav yog dab tsi?
Peb tuaj yeem txhais cov iav ua cov khoom amorphous uas tsis muaj qhov ntev-ntev atomic qauv, thiab nws qhia txog kev hloov pauv iav. Raws li, qhov kev hloov pauv iav no yog cov yam ntxwv ntawm cov khoom tsis-crystalline (amorphous) thiab semi-crystalline cov ntaub ntawv. Nyob ntawd, thaum cua sov, lub khob qhia tau hais tias lub xeev zoo li roj hmab tshaj qhov kub thiab txias uas peb hu ua iav hloov qhov kub. Yog li ntawd, qhov no poob qis dua nws qhov kub thiab txias.
Daim duab 01: Lub Qhov Rooj iav
Tom qab ntawd, peb yuav tsum txias lub khob kom tsis txhob cia nws nce tus qauv crystalline. Tsim cov iav xav tau cov qub network xws li SiO2, B2O3, P 2O5, GeO2, thiab lwm yam.thiab intermediates xws li Ti, Pb, Zn, Al, thiab lwm yam los koom nrog hauv lub iav network, thiab cov kev hloov kho kom tawg lub network qauv. Pure silica iav, Soda-txiv qaub- Silica iav, Lead-Alkali- Silicate iav thiab Borosilicate iav yog hom iav.
YCeramic yog dab tsi?
Peb tuaj yeem txhais cov ceramic ua cov khoom siv tsis zoo uas tsis yog xim hlau uas tau tawv tawv ntawm qhov kub thiab txias. Cov qauv atomic ntawm ceramic tuaj yeem yog crystalline, tsis-crystalline lossis ib nrab crystalline. Txawm li cas los xij, feem ntau, ceramics muaj cov qauv crystalline atomic.
Tsis tas li ntawd, peb tuaj yeem faib cov ceramics ua cov tsoos lossis qib siab ceramic feem ntau nyob ntawm lawv daim ntawv thov. Ceramics feem ntau yog opaque tsuas yog iav. Silica, Av nplaum, Limestone, Magnesia, Alumina, Borates, Zirconia, thiab lwm yam yog cov khoom siv raw rau ceramics.
Daim duab 02: Lub lauj kaub ua los ntawm Ceramic
Tsis tas li ntawd, cov khoom no yog kev poob siab resistant, siab zog, abrasion resistant khoom. Txawm li cas los xij, lawv cov hluav taws xob conductivity tsis zoo. Tsis tas li ntawd, peb tuaj yeem tsim cov khoom siv no los ntawm kev tsim cov tshuaj txhuam hniav uas muaj cov hmoov zoo ntawm cov ntaub ntawv raw thiab dej rau hauv cov duab muab thiab tom qab ntawd los ntawm sintering. Vim cov txheej txheem tsim, ceramic yog me ntsis kim dua iav. Ntxiv mus, tej yam ntuj tso ceramics xws li pob zeb, av nplaum, thiab plooj (porcelain) kuj tseem siv tau rau lub neej niaj hnub.
Qhov txawv ntawm iav thiab Ceramic yog dab tsi?
Ob qho tib si ceramics thiab iav yog cov khoom siv tsis zoo uas tsis yog xim hlau uas peb siv rau ntau daim ntawv thov xws li lub lauj kaub tais diav mus rau cov khoom siv engineering siab heev hauv kev lag luam aerospace. iav yog ib qho khoom amorphous uas tsis muaj qhov ntev-ntev atomic qauv, thiab nws qhia tau hais tias lub iav hloov pauv tus cwj pwm thaum ceramic yog ib qho khoom siv tsis zoo uas tsis yog xim hlau uas tau hardened ntawm qhov kub thiab txias. Qhov sib txawv tseem ceeb ntawm iav thiab ceramics yog cov ceramics muaj crystalline lossis semi-crystalline lossis non-crystalline atomic qauv whereas lub atomic qauv ntawm iav yog non-crystalline.
Txawm tias iav muaj cov qauv atomic sib txawv, nws yog ib qho nyuaj, nruj, nkig, thiab resistant rau thermal conduction, tshuaj corrosion thiab hluav taws xob conduction zoo li feem ntau ceramics.
Cov hauv qab no nthuav tawm cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm iav thiab ceramic.
Summary – iav vs Ceramic
Ob lub iav thiab ceramic yog cov ntaub ntawv tseem ceeb uas peb siv hauv peb lub neej niaj hnub niaj hnub niaj hnub. Qhov sib txawv tseem ceeb ntawm iav thiab ceramics yog cov ceramics muaj crystalline lossis semi-crystalline lossis non-crystalline atomic qauv whereas lub atomic qauv ntawm iav yog non-crystalline.
