Tsev > Xov xwm > Ntsiab lus

Cov Tshuaj Humate Refractory Cov Tshuaj

Zirconium dioxide yog lub ntsiab oxide ntawm zirconium, feem ntau yog nyob rau hauv cov kev mob ntawm cov ntxhiab tsw ntxhiab thiab ntxhiab tsw, tsis muaj nyob hauv dej, cov tshuaj hydrochloric thiab dilute sulfuric acid. Feem ntau feem ntau muaj qis me ntsis ntawm hafnium dioxide. Cov khoom siv tshuaj muaj zog, thiab muaj lub siab melting point, siab resistivity, high refractive index thiab tsis thermal expansion coefficient ntawm qhov, ua nws tseem ceeb heev cov ntaub ntawv kub, cov ntaub ntawv rwb thaiv tsev thiab cov khoom siv roj zas, cov ntawv cuav yog lub ntsiab raw khoom. Qhov kev sib txawv ntawm band yog 5-7 eV.

Tshuaj lom neeg

1, tau los ntawm burning zirconia hydrate los sis tsis ntov zirconylate zirconium oxide tau li cov hmoov dawb, tsis muaj dej hauv qhov dej

ZrO2 xH2O ZrO2 + xH2O;

2, los ntawm kev mob me ntsis ntawm zirconium dioxide, kuj yooj yim mus tau yaj hauv inorganic acid

ZrO2 + 4H + = Zr4 ++ 2H2

Muaj zog kub hnyiab ntawm cov zirconia tau tsuas yog nyob hauv cov kua xoos hnoos thiab concentrated sulfuric acid, tom qab yaj thiab recrystallization ntawm zirconia tsuas yog nrog hydrofluoric acid;

3, zirconium dioxide yog ib hom amphoteric oxide, thiab alkali eutectic tau ua zirconate, tab sis cov zirconate dej tau yooj yim hydrolyzed rau ZrO2 ยท xH2O thiab nag lossis daus.

ZrO2 + 2NaOH = Na2ZrO3 + H2O

Na.ZrO3 + H2O = ZrO2 + NaOH;

4, zirconium thiab carbon thiab chlorine roj kub cov tshuaj tiv thaiv, los yog nrog cov tetrachloride cov tshuaj tiv thaiv, tsim ntawm zirconium tetrachloride thiab zirconium dichloride, hydrolysis thiab tau zirconium dioxide

3ZrO2 + 2C + 4Cl2 = ZrCl4 + 2CO2 + 2ZrOCl2;

5, nws yog nyob rau hauv kos nrog carbon generated zirconium carbide

ZrO2 + 2C = CO2 + ZrC;

6, rau hauv oblique zircon hom ZrO2 yog xim daj los yog xim daj uas tsis muaj xim siv nyob rau hauv cov dej, hydrochloric acid thiab dilute sulfuric acid, soluble nyob rau hauv cov roj concentrated hydrofluoric acid, nitric acid thiab sulfuric acid. Txhab nrog lub hauv paus los tsim cov zirconates. Tshuaj lom neeg muaj qhov ruaj khov heev. Rau lub system ntawm high-qib ceramics, enamel, cov ntaub ntawv refractory. Yuav zirconia thiab dej qab zib eutectic, nrog dej leaching sodium zirconate, thiab hydrochloric acid rau zirconium dichloride, thiab ces calcined nyob rau hauv lub system.

Cov chaw kawm ntawv

Hlau zirconium thiab nws cov sib txuas

Rau cov zirconium thiab zirconium tebchaw, ua ntawm cov cib thaav thiab crucible, high-frequency ceramics, cov khoom sib tsoo, ceramic pigments thiab zirconates yog siv rau piezoelectric ceramic khoom, ceramics rau txhua hnub siv, hluav taws xob thiab precious hlau smelting Zirconium cib, zirconium tube, crucible thiab thiaj li nyob rau. Tsis tas li ntawd siv nyob rau hauv qhuav ntawm hlau thiab non-ferrous co, optical iav thiab zirconia fiber. Kuj siv rau cov pigments ceramic, electrostatic coatings thiab xim. Rau epoxy resin tuaj yeem ua rau qhov corrosion ntawm tshav kub-resistant brine.

Cov ntaub ntawv txua hluav taws xob

Zirconia fiber yog ib qho polycrystalline refractory fiber ntau cov khoom. Vim lub siab melting point, non-oxidation thiab lwm yam kub kub ntawm ZrO2 cov khoom nws tus kheej, cov ZrO2 fibers muaj dua kub tshaj lwm refractory fiber ntau yam xws li alumina fibers, mullite fibers, thiab txhuas silicate fibres. Zirconium oxide fiber nyob rau hauv 1500 โ„ƒ saum toj kub siab oxidation chaw ntev, qhov siab tshaj plaws ntawm 2200 โ„ƒ, txawm tias 2500 โ„ƒ tau tseem tuav lub fwj kab tiav, thiab kev ruaj siab chemical stability, corrosion resistance, oxidation, Non -volatile, uas tsis yog-polluting, tam sim no lub ntiaj teb sab saum toj ntawm cov khoom fiber ntau refractory. Cov kua qaub tawv corrosion ntawm ZrO2 muaj zog dua li ntawm SiO2 thiab Al2O3. Insoluble nyob rau hauv dej, soluble nyob rau hauv sulfuric acid thiab hydrofluoric acid; me ntsis soluble nyob rau hauv hydrochloric acid thiab nitric acid. Yuav siv tau nrog lub hauv paus eutectic zirconium ntsev

roj cav

Daim ntawv thov plasma sprayed zirconia thermal barrier coatings nyob rau hauv aerospace thiab industrial gas turbines tau zoo kev kawm thiab tau siv nyob rau hauv turbines ntawm roj turbines mus rau ib qho twg. Vim tias qhov txheej no tuaj yeem txo qhov ntsuas kub ntawm cov cua kub cua txias los ntawm 50 mus rau 200C, nws yog ib qho ua tau zoo kom zoo dua qub rau qhov kub ntawm qhov ntsuas kub lossis ntxiv qhov kub ntawm qhov roj los yog txo qhov nyiaj ntawm txias roj thiab tswj kom qhov kub Hloov, yog li txhim kho qhov ua tiav ntawm lub cav.

Cov khoom siv pobzeb

Vim zirconia txoj kev ntsuas qis rau txhaws, qhov siab melting point, corrosion resistance, nws yog siv rau cov khoom raw li kiln. Piezoelectric tej hub khoom siv yog lim, loudspeaker ultrasonic underwater acoustic detectors. Muaj cov ntxhuav txhua txhua hnub (industrial ceramic glaze), zoo nkauj hlau zom nrog zirconium cib thiab zirconium tube. Nano-zased zirconia kuj siv tau los ua ib qho khoom siv rau cov khoom siv polishing, txhuam nplej, piezoelectric ceramics, precision ceramics, ceramic glazes thiab kub pigments.

lwm yam

Tsis tas li ntawd zirconia yuav siv tau rau dawb kub roj ntxoov ntxoo, enamel, dawb iav, refractory crucible, thiab lwm yam. X - duab ci duab. Sib tsoo khoom. Siv ua ke nrog yttrium los ua kom pom lub teeb ci, cov ntaub ntawv tuab ntawm daim txiag thaij duab, piezoelectric Crystal transducer zaub mov txawv hauv infrared spectrometers