Nrov Science Horizons| rau hauv Ntiaj Teb ntawm Tellurium

1. [Introduction]
Tellurium yog ib qho khoom siv hlau nrog lub cim Te. Tellurium yog cov xim dawb-dawb ntawm rhombohedral series, soluble hauv sulfuric acid, nitric acid, aqua regia, potassium cyanide thiab potassium hydroxide, insoluble hauv dej txias thiab kub thiab carbon disulfide. High purity tellurium tau txais los ntawm kev siv tellurium hmoov ua raw khoom thiab rho tawm thiab refining nrog sodium polysulfide. purity yog 99.999%. Rau cov khoom siv semiconductor, alloys, tshuaj raw cov ntaub ntawv thiab muaj additives xws li cam khwb cia hlau, roj hmab, iav, thiab lwm yam.

2. [Nature]
Tellurium muaj ob lub allotropy, uas yog, dub hmoov, amorphous tellurium thiab silvery dawb, nws yog xim hlau luster, thiab hexagonal crystalline tellurium. Semiconductor, bandgap 0.34 ev.
Ntawm ob lub allotropy ntawm tellurium, ib qho yog crystalline, nws yog xim hlau, silvery-dawb thiab nkig, zoo ib yam li antimony, thiab lwm yam yog amorphous hmoov, tsaus grey. Nruab nrab ceev, tsawg melting thiab boiling point. Nws yog nonmetal, tab sis nws ua rau kub thiab hluav taws xob zoo heev. Ntawm tag nrho nws cov khub uas tsis yog xim hlau, nws yog xim hlau tshaj plaws.

3. [Daim ntawv thov]
High purity tellurium ib leeg siv lead ua yog ib yam tshiab ntawm cov khoom siv infrared. Cov pa tellurium yog ntxiv rau cov hlau thiab tooj liab alloys los txhim kho lawv cov machinability thiab nce hardness; nyob rau hauv cov hlau cam khwb cia dawb, cov pa tellurium yog siv los ua cov carbide stabilizer ua rau saum npoo tawv thiab hnav-resistant; txhuas, uas muaj me me ntawm tellurium, yog ntxiv rau cov hlau los txhim kho nws cov machinability thiab nce nws hardness, nws txhim kho cov khoom siv corrosion kuj, hnav tsis kam thiab lub zog, thiab yog siv los ua ib lub hnab rau submarine cables; ntxiv tellurium rau txhuas tsub kom nws hardness, thiab yog siv los ua roj teeb daim hlau thiab hom. Tellurium tuaj yeem siv los ua ib qho ntxiv rau cov roj av cracking catalysts thiab ua ib qho catalyst rau kev npaj ntawm ethylene glycol. Tellurium oxide yog siv los ua cov xim hauv iav. High purity tellurium tuaj yeem siv los ua cov khoom sib xyaw ua ke hauv cov ntaub ntawv thermoelectric. Bismuth telluride yog cov khoom siv tub yees zoo. Tellurium yog Daim Ntawv Teev Npe ntawm cov khoom siv semiconductor nrog ob peb lub ntsiab lus telluride, xws li cadmium telluride, hauv lub hnub ci.
Tam sim no, kev lag luam ntawm cdte nyias zaj duab xis hnub ci zog yog tsim sai heev, uas yog suav hais tias yog ib qho kev cog lus zoo tshaj plaws hnub ci zog technologies.