Anatase

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Anatase

Yuav cov anatase ntuj hauv peb lub khw


Anatase yog cov ntaub ntawv pov thawj metastable ntawm titanium dioxide. Cov ntxhia hauv cov ntaub ntawv ntuj feem ntau ntsib raws li cov khoom dub, txawm hais tias cov khoom ntshiab yog tsis muaj xim lossis dawb. Ob lwm qhov ib txwm muaj tshwm sim cov ntxhia hauv cov TiO2 yog paub, brookite thiab rutile.

Anatase ib txwm pom muaj xws li me me, cais thiab ntse tsim muaju, thiab zoo li lub thermodynamically ruaj khov rutile, nws crystallizes nyob rau hauv tetragonal system. Lub pov haum yog metastable ntawm txhua qhov kub thiab nias, nrog rutile yog qhov sib luag ntawm cov pob zeb loj. Txawm li cas los xij, anatase feem ntau yog thawj titanium dioxide theem tsim nyob rau hauv ntau cov txheej txheem, vim nws qis qis zog lub zog, nrog kev hloov pauv rau rutile noj qhov chaw ntawm qhov kub nce. Txawm hais tias qhov kev ntsuas ntawm kev ntsuas zoo ib yam rau ob qho tib si anatase thiab rutile, tsis muaj kev cuam tshuam ntawm cov kev sib tshuam ntawm cov ces kaum ob ntawm cov zaub mov, tshwj tsis yog nyob hauv thaj chaw muaj txiaj ntsig ntawm 45 ° thiab 90 °. Cov xwm txheej uas zoo ib yam ntawm anatase, thaum uas tig mus rau lub ntsej muag ntawm qhov uas muaj cov kab rov tav zoo tag nrho, muaj lub kaum sab xis tshaj sab qaum ntawm ntug polar ntawm 82 ° 9 ′, lub kaum sab xis coj ntawm rutile tau 56 ° 52½ '. Vim los ntawm no steeper pyramid,

Crystal cwj pwm

Ob txoj kev loj hlob ntawm cov anatase muaju yuav txawv. Qhov ntau tshwm sim tshwm sim xws li yooj yim ntse ob chav pyramids nrog ib qho indigo-xiav rau xim dub thiab tawv ncauj lus. Cov khoom siv dag tau ntawm cov khoom no muaj ntau ntawm Le Bourg-d'Oisans hauv Dauphiné, qhov uas lawv cuam tshuam nrog pob zeb-siv lead ua, feldspar, thiab axinite hauv crevices hauv granite thiab mica-schist. Cov pob zeb zoo sib xws, tab sis ntawm cov loj me me, tau muab faib dav hauv cov pob zeb sedimentary, xws li cov xuab zeb, cov av nplaum, thiab cov nplais, los ntawm qhov uas lawv tuaj yeem sib cais los ntawm kev ntxuav cov teeb meem ntawm cov pob zeb hmoov. Lub dav hlau ntawm anatase yog qhov chaw tshaj plaws thermodynamically ruaj khov qhov chaw thiab yog li qhov feem ntau nthuav dav hauv ntuj thiab hluavtaws anatase.

Lub ntsej muag ntawm hom ob muaj ntau lub ntsej muag pyramidal tsim, thiab lawv feem ntau yog ntse lossis qee zaum prismatic hauv tus cwj pwm, cov xim yog zib ntab-daj rau xim av. Xws li cov muaju nyob ze rau xenotime zoo li qhov tseeb thiab, tseeb, tau ntev rau lub sijhawm tsim nyog koom nrog hom tsiaj no, lub npe tshwj xeeb wiserine tau thov rau lawv. Lawv tshwm sim txuas rau ntawm cov phab ntsa ntawm kev ua kom puas ntawm gneisses ntawm Alps, Binnenthal nyob ze Brig hauv canton Valais, Switzerland, yog ib qho chaw muaj npe nrov. Lawm tshwm sim pseudomorphs ntawm rutile tom qab anatase kuj paub.

Anatase


Yuav cov anatase ntuj hauv peb lub khw

kev ua yuam kev: Cov ntsiab lus yog kev tiv thaiv !!