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Txheej Ntawm Cov Titanium Dioxide Hauv Chaw Ua Lag Luam Txhua Yam Yuav Tsum Tau Muaj Ib Daim Ntawv Thov Siv Ntau Qhov Chaw

Qhov tsim ntawm yim ntsiab ntawm ceramics yog ntau paub. K2O, Na2O, CaO, MgO, $ literal, SiO2 thiab $ literal, TiO2. Thawj rau ntsiab rau peb siv, raws li kev sib txawv ntawm cov khoom uas yuav tsum tau, kev ua formulation ntawm ntau formulations. Tom qab ntawd ob yam khoom, raws li cov ntsiab lus coloring, nyob rau hauv ntau, peb tsis xav pom nyob rau hauv raw cov ntaub ntawv. Cov hlau tseem ceeb Tsis tas yuav hais, peb yuav txawm nyob rau hauv cov txheej txheem ntau lawm los tswj cov kev tshem tawm cov hlau tawm kom tsis muaj zog nws txoj kev ntxhib. Lub titanium keeb nyob rau hauv cov ntaub ntawv yooj yim raw, nws yog nyuaj rau tshem tawm, feem ntau, cov neeg nyob rau hauv raw cov ntaub ntawv ntawm titanium tsis paub pab. Yog li, peb tuaj yeem to taub, qhov tseeb, titanium tsis zoo li peb xav, tsis siv.

Muaj peb hom titanium dioxide, namely phaj titanium ore, anatase thiab rutile. Txawm hais tias nyob hauv cov txuj ci ntau lawm, peb xav tias nws yog xim xim, qhov tseeb, qhov xwm txheej, titanium dioxide yog lub ntuj tso tawm cov dawb dawb tshaj plaws. Lub npe ntawm titanium dioxide qhia tias nws tus cwj pwm yog dawb. Thiab yog vim li cas vim titanium dioxide nyob rau hauv ceramic ntau yog xav ua ib tug coloring caij, unfavorable rau ntau lawm, mas vim titanium dioxide tom qab 800 ℃, qhov tshwm sim ntawm crystalline transformation, ua ib siv lead ua xim, yog li coloring. Nyob rau hauv peb cov khoom siv zus, qhov kub yog feem ntau siab li 1000 ℃, yog li ntawd, nyob rau ntau qhov lag luam ntawm cov khoom zoo heev titanium dioxide hauv kev ua lag luam txhuam tau los ua qhov tsis zoo.

Nyob rau hauv xyoo tsis ntev los ntawm ceramic qhuav txoj kev, thaum pib ntawm lub sij hawm, ceramic raw cov ntaub ntawv rau hlau thiab titanium ntsiab yog tiag tiag los mus ceev faj kom tsis txhob muaj xim. Tab sis maj mam pib tshwm hauv qee qhov kev hloov, ib tug neeg tso zis rau qee cov khoom siv los tsim cov khoom siv raw li yuav tsum tau pib ua kom muaj hlau thiab titanium rau hauv cov qauv cog. xws li feldspar nyob rau hauv cov ntsiab lus hlau ntawm 0.15% amplification rau 0.2 ~ 0.4%, thiab titanium cov ntsiab lus ntawm 0.1% hauv lub magnification mus 0.2 ~ 0.3% hauv. Lub ntsiab xav yog tias hlau thiab titanium tuaj yeem ua tau mob, ua cov xim cov xim uas phim qee yam khoom.

Tsis tas li ntawd, tus kws sau ntawv ntseeg hais tias nyob rau hauv kev lag luam tej hub, titanium dioxide yuav tsum muaj ib qhov chaw ntau dua, yog li ntawd tib neeg siv txoj haujlwm siv Titanium siv titanium. Qhov no yog qhov khoom ntawm titanium dioxide cov khoom sib thooj rau cov khoom tu yus tus kheej. Raws li lub npe pom zoo, los ntawm cov txheej txheem tsim nyog, cov khoom siv xuab zeb nyob ntawm qhov npaj ntawm ib txheej ntawm titanium dioxide zaj duab xis, cov khoom siv xuas ntoo tuaj yeem tsim cov tshuaj tua tus kheej, zoo heev rau sab nrauv thiab chav dej khoom siv ua ke.

Txoj cai tswjfwm ntawm tus kheej no yog nyob rau hauv nano-theem anatase titanium dioxide, lub luag haujlwm hauv lub luag haujlwm ntawm lub hnub ci, dej molecules tuaj yeem hloov mus rau hauv hydrogen atoms thiab cov atoms oxygen, thaum lub neej ntawm tus neeg sab nraud oxygen atom muaj zog muaj peev xwm oxidize nto ntawm cov khoom kom tshem tawm cov av xuab. Qhov no zoo ib yam li cov hmoov uas paub zoo, ntxuav cov hmoov ntsaws ntxiv rau lub luag haujlwm ntawm cov stains yog muaj nyob rau hauv NaClO hauv dej kom zoo rau hauv NaCl thiab cov atoms, thiab cov pa oxygen tawm tau cov xim. Nws lub peev xwm oxidation, ntau tshaj li 10-feeb ntxuav txheej txheem tom qab kawg ntawm cov neeg txhais tes yuav whitish.

Txij li thaum lub khoom huv huv tau siv nyob rau hauv cov khoom iav heev thaum ntxov. Nyiv nyob rau hauv 2000 xyoo los yog li nyob rau hauv ib co qhov chaw nyob rau hauv lub sim ntawm cov khoom muag, tswv yim zoo. Nws cov txheej txheem ntau lawm, tsuas yog nyob rau hauv cov khoom lag luam ntawm iav lig, nyob rau hauv cov kab ntau tshaj li ntawm 600 ℃ hauv cheeb tsam, lub installation ntawm cov khoom phom. Nanometer qib titanium dioxide Left yog txau ntawm cov khoom iav, lub Lawm yog melted ntawm high temperature, thiab dawb Titania zaj duab xis yog txau ntawm lub khob. Muaj ntau yam xws li kev tshawb fawb hauv Suav teb, 5 ~ 50nm qib titanium dioxide zaj duab xis txheej tau tsim los ntawm Shenzhen University thiab Zhejiang University hauv 450 ~ 550 ℃, uas muaj cov txiaj ntsim zoo kawg. Kev npaj ntawm Loos hauv ib qho tsim nyog doping, xws li SiO2 doping thiab tsawg ntiaj teb ions doped, cov nyhuv yog zoo dua.

Tam sim no, cov khoom siv zas ntsej muag yog ib lub khw lag luam loj. Los ntawm cov khoom siv ua ntej ntawm cov khoom siv, kom tam sim no cia siab rau qhov zoo thiab qhov chaw zoo nkauj ua kom zoo siab rau cov neeg siv khoom, ntseeg tias yav tom ntej, nrog tej qhov kev ua haujlwm ntawm cov khoom xyaw yuav tau nyob hauv lub khw. thiab titanium dioxide txheej tshuab, nws tsim nyog peb qhov kev cia siab.


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