(Source: Tuam Tshoj ceramic net)

Hais txog qee cov khoom siv hauv cov khoom siv ceramic, cov khoom siv kho qhov muag thiab cov khoom siv kho qhov muag yog ob qho tseem ceeb tshaj plaws.Cov khoom siv kho tshuab txiav txim siab qhov kev ua tau zoo ntawm cov ntaub ntawv, thaum optics yog lub embodiment ntawm cov khoom zoo nkauj.Hauv kev tsim cov ceramics, cov khoom siv kho qhov muag yog feem ntau cuam tshuam hauv glaze.Cov khoom siv kho qhov muag sib xws tuaj yeem muab faib ua peb yam:glossiness, transparency thiab whiteness.

Glossiness

Thaum lub teeb yog npaj rau ntawm ib qho khoom, nws yuav tsis tsuas yog cuam tshuam rau hauv ib qho kev taw qhia raws li txoj cai ntawm kev xav, tab sis kuj tawg.Yog hais tias qhov saum npoo yog du thiab tiaj tus, qhov kev siv ntawm lub teeb nyob rau hauv specular reflection kev taw qhia yog ntau dua li nyob rau hauv lwm cov lus qhia, yog li nws yog ntau brighter, uas yog reflected nyob rau hauv muaj zog glossiness.Yog hais tias qhov saum npoo yog ntxhib thiab tsis sib xws, lub teeb yog diffusely reflected nyob rau hauv tag nrho cov lus qhia, thiab nto yog semi matte los yog matte.

Nws pom tau tiaslub luster ntawm ib yam khoom yog feem ntau tshwm sim los ntawm specular reflection ntawm cov khoom, uas qhia txog lub flatness thiab smoothness ntawm qhov chaw.Glossiness yog qhov piv ntawm qhov siv ntawm lub teeb nyob rau hauv specular reflection kev coj mus rau qhov siv ntawm tag nrho cov reflected lub teeb.

Lub gloss ntawm glaze yog ncaj qha cuam tshuam rau nws cov refractive index.Feem ntau hais lus, qhov siab dua cov ntsiab lus ntawm cov ntsiab lus siab refractive nyob rau hauv cov mis, lub zog ntawm glossiness ntawm glaze nto, vim hais tias lub siab refractive index nce lub reflection tivthaiv nyob rau hauv daim iav kev taw qhia.Lub refractive index yog ncaj qha proportional rau qhov ceev ntawm glaze txheej.Yog li ntawd, nyob rau hauv tib yam kev mob, cov ceramic glaze muaj oxides ntawm Pb, Ba, Sr, Sn thiab lwm yam high-density ntsiab, yog li nws refractive index yog loj dua thiab nws cov luster muaj zog dua cov plooj (porcelain glaze).Hauvnam ntawm kev npaj, lub glaze nto yuav finely polished kom tau ib tug siab specular nto, thiaj li mus txhim kho lub gloss ntawm glaze.

Pob tshab 

Lub pob tshab yog nyob ntawm cov ntsiab lus ntawm iav theem hauv glaze.

Feem ntau hais lus, qhov siab dua cov ntsiab lus ntawm iav theem, qhov tsawg dua cov ntsiab lus ntawm siv lead ua thiab npuas, thiab qhov siab dua qhov pom ntawm glaze.

Yog li ntawd, los ntawm nam ntawm cov qauv tsim, ib tug loj tus naj npawb ntawm fusible ntsiab yog siv nyob rau hauv cov mis, thiab tswj cov ntsiab lus ntawm txhuas yog conducive rau kev txhim kho pob tshab.Los ntawm qhov kev xav ntawm kev npaj, qhov txias ceev ntawm glaze ntawm qhov kub thiab txias thiab tsis txhob glaze crystallization yog qhov tsim nyog rau kev txhim kho pob tshab.Peb lub ntsiab raw cov ntaub ntawv rau iav npaj, dej qab zib tshauv, limestone thiab silica, yog dawb thiab tsis muaj hlau raw cov ntaub ntawv nyob rau hauv tsos, lub khob npaj muaj siab transparency thiab tsawg heev whiteness.Txawm li cas los xij, thaum cov crystallization sab hauv ua iav ceramics, nws yuav dhau los ua cov khoom dawb thiab cov khoom dawb siab.

Dawb 

Dawb yog tshwm sim los ntawm diffuse reflection ntawm lub teeb ntawm cov khoom.Rau tsev neeg cov plooj (porcelain), huv si porcelain thiab tsev ceramics, whiteness yog ib qho tseem ceeb Performance index los ntsuam xyuas lawv cov tsos.Qhov no yog vim cov neeg siv khoom yooj yim rau kev sib koom ua ke dawb nrog huv.

Cov xim dawb ntawm cov khoom yog tshwm sim los ntawm nws qhov kev xaiv tsawg dua ntawm lub teeb dawb, tsis tshua muaj kev xa tawm thiab tawg loj heev.Yog tias ib qho khoom muaj tsawg dua kev nqus ntawm lub teeb dawb thiab tsis tawg, cov khoom yog pob tshab.Nws tuaj yeem pom tias cov xim dawb ntawm glaze feem ntau yog nyob ntawm qhov tsis tshua muaj lub teeb dawb nqus, tsis tshua muaj kev xa tawm thiab muaj zog tawg muaj peev xwm ntawm glaze.

Nyob rau hauv cov nqe lus ntawm muaj pes tsawg leeg, tus cawv ntawm whiteness tsuas yog nyob ntawm cov ntsiab lus ntawm cov xim oxide thiab fusible ntsiab nyob rau hauv glaze.Feem ntau hais lus, qhov qis dua cov xim oxide, qhov siab dua qhov dawb;Qhov tsawg fusible ntsiab, qhov siab dua qhov whiteness.

Nyob rau hauv cov nqe lus ntawm kev npaj, whiteness yog cuam tshuam los ntawm firing system.Cov khoom siv raw muaj hlau ntau dua thiab tsawg dua titanium, Kev tua hluav taws hauv kev txo cov cua tuaj yeem ua rau kom muaj xim dawb;Ntawm qhov tsis sib xws, kev siv cov cua oxidizing yuav ua rau kom cov xim dawb.Yog hais tias cov khoom yog txias los yog insulated nrog lub cub tawg, tus naj npawb ntawm crystals nyob rau hauv lub glaze yuav nce, uas yuav ua rau kom lub glaze whiteness.

Thaum kuaj qhov dawb ntawm cov ntaub ntawv raw, feem ntau muaj qhov sib txawv me ntsis ntawm cov ntaub ntawv qhuav dawb thiab ntub dej ntawm cov ntaub pua plag thiab pob zeb, thaum cov ntaub ntawv qhuav dawb thiab ntub dej ntawm cov ntaub ntawv av nplaum feem ntau sib txawv heev.Qhov no yog vim hais tias cov iav theem ua rau qhov sib txawv ntawm cov txheej txheem sintering ntawm porcelain thiab pob zeb cov ntaub ntawv, thiab lub teeb pom kev feem ntau tshwm sim ntawm qhov chaw.Lub iav theem ntawm cov av nplaum raug rho tawm haujlwm yog tsawg dua, thiab lub teeb tseem tshwm sim hauv lub phaj.Tom qab kev kho mob immersion, lub teeb tsis tuaj yeem cuam tshuam los ntawm sab hauv, ua rau muaj qhov tsis pom tseeb hauv cov ntaub ntawv tshawb pom, uas yog tshwj xeeb tshaj yog nyob rau hauv kaolin uas muaj mica.Nyob rau tib lub sij hawm thaum tua hluav taws, qhov hluav taws kub cua yuav tsum tau tswj thiab tiv thaiv kom txhob muaj qhov txo ntawm whiteness los ntawm carbon deposition.

 

Nyob rau hauv lub tsev ceramic glaze,cov teebmeem ntawm peb hom teeb yuav tshwm sim.Yog li ntawd, thaum lub sij hawm tus txheej txheem ntawm formulation thiab npaj, nws yog feem ntau txiav txim siab nyob rau hauv ntau lawm los qhia ib yam khoom thiab tsis muaj zog rau lwm tus neeg nyob rau hauv thiaj li yuav txhim kho ib co nyhuv.