1. [Kev Taw Qhia]
Tellurium yog ib qho khoom siv hlau quasi-metallic nrog lub cim Te. Tellurium yog ib qho siv lead ua los ntawm nyiaj-dawb ntawm rhombohedral series, soluble hauv sulfuric acid, nitric acid, aqua regia, potassium cyanide thiab potassium hydroxide, insoluble hauv dej txias thiab dej kub thiab carbon disulfide. Tellurium purity siab tau txais los ntawm kev siv hmoov tellurium ua cov khoom siv raw thiab rho tawm thiab refining nrog sodium polysulfide. Qhov purity yog 99.999%. Rau cov khoom siv semiconductor, alloys, cov khoom siv tshuaj lom neeg thiab cov khoom siv ntxiv rau kev lag luam xws li hlau cam khwb cia, roj hmab, iav, thiab lwm yam.
2. [Xwm Txheej]
Tellurium muaj ob hom allotropy, uas yog, hmoov dub, amorphous tellurium thiab silvery dawb, metallic luster, thiab hexagonal crystalline tellurium. Semiconductor, bandgap 0.34 ev.
Ntawm ob qho allotropy ntawm tellurium, ib qho yog crystalline, metallic, silvery-dawb thiab brittle, zoo ib yam li antimony, thiab lwm qhov yog amorphous hmoov, grey tsaus. Nruab nrab ceev, qis melting thiab boiling point. Nws yog ib tug nonmetal, tab sis nws conducts cua sov thiab hluav taws xob zoo heev. Ntawm tag nrho nws cov phooj ywg tsis yog hlau, nws yog cov hlau tshaj plaws.
3. [Daim Ntawv Thov]
Cov khoom siv tellurium uas muaj purity siab yog ib hom khoom siv infrared tshiab. Cov tellurium ib txwm muaj ntxiv rau cov hlau thiab tooj liab kom txhim kho lawv txoj kev ua haujlwm thiab ua kom tawv; hauv cov hlau dawb, cov tellurium ib txwm muaj siv ua cov carbide stabilizer los ua kom qhov chaw tawv thiab hnav-resistant; cov hlau txhuas, uas muaj me ntsis tellurium, ntxiv rau cov hlau txhuas kom txhim kho nws txoj kev ua haujlwm thiab ua kom nws qhov tawv, nws txhim kho cov khoom siv tiv thaiv corrosion, hnav-resistant thiab lub zog, thiab siv ua lub hnab rau cov cables submarine; ntxiv tellurium rau cov hlau txhuas ua rau nws qhov tawv, thiab siv los ua cov phaj roj teeb thiab hom. Tellurium tuaj yeem siv ua cov khoom ntxiv rau cov roj av tawg catalysts thiab ua cov catalyst rau kev npaj ethylene glycol. Tellurium oxide siv ua cov xim hauv iav. Cov tellurium uas muaj purity siab tuaj yeem siv ua cov khoom sib xyaw hauv cov khoom siv thermoelectric. Bismuth telluride yog cov khoom siv refrigerant zoo. Tellurium yog Daim ntawv teev cov khoom siv semiconductor nrog ntau cov telluride compounds, xws li cadmium telluride, hauv cov hlwb hnub ci.
Tam sim no, kev lag luam ntawm cdte zaj duab xis nyias lub hnub ci zog tab tom txhim kho sai, uas suav hais tias yog ib qho ntawm cov thev naus laus zis hnub ci zoo tshaj plaws.
Lub sijhawm tshaj tawm: Plaub Hlis-18-2024