7N Tellurium Crystal Kukula ndi Njira Yoyeretsera Tsatanetsatane ndi Ma Parameter Aukadaulo

Njira yoyeretsera ya 7N tellurium imaphatikiza matekinoloje oyenga madera ndi ukadaulo wowongolera. Tsatanetsatane wa ndondomeko ndi magawo afotokozedwa pansipa:

1. Zone Refining Njira
Zida Design

Maboti osungunuka amitundu yosiyanasiyana: Diameter 300-500 mm, kutalika 50-80 mm, opangidwa ndi quartz yoyera kwambiri kapena graphite.
Dongosolo lotenthetsera: Makoyilo osazungulira ozungulira omwe amatha kuwongolera kutentha kwa ± 0.5 ° C komanso kutentha kwambiri kwa 850 ° C.
Ma Parameters Ofunika

Vacuum: ≤1 × 10⁻³ Pa ponseponse kuti mupewe makutidwe ndi okosijeni komanso kuipitsidwa.
Liwiro loyenda madera: 2-5 mm/h (kuzungulira kozungulira kudzera pa shaft drive).
Kutentha kwa kutentha: 725 ± 5 ° C kutsogolo kwa zone yosungunuka, kuzizira mpaka <500 ° C m'mphepete mwa njira.
Kudutsa: 10-15 kuzungulira; kuchotsa bwino> 99.9% pa zonyansa zokhala ndi ma coefficients a tsankho <0.1 (mwachitsanzo, Cu, Pb).
2. Directional Crystallization process
Kukonzekera kwa Sungunulani

Zofunika: 5N tellurium yoyeretsedwa kudzera pakuyenga madera.
Kusungunuka: Kusungunuka pansi pa mpweya wa Ar gasi (≥99.999% chiyero) pa 500-520 ° C pogwiritsa ntchito kutentha kwapakati pafupipafupi.
Chitetezo cha Sungunulani: Chophimba chapamwamba cha graphite kuti chichepetse kuphulika; kuya kwa dziwe losungunuka kumakhalabe pa 80-120 mm.
Kuwongolera kwa Crystallization

Kukula: 1-3 mm / h ndi kutentha kwapakati pa 30-50 ° C/cm.
Dongosolo lozizirira: Mkuwa wozizidwa ndi madzi pouzira pansi; kuzirala kotentha pamwamba.
Kulekanitsa zonyansa: Fe, Ni, ndi zonyansa zina zimalemeretsedwa pamalire a tirigu pambuyo pa 3-5 remelting cycles, kuchepetsa kuchuluka kwa ppb.
3. Quality Control Metrics
Parameter Standard Value Reference
Kuyera komaliza ≥99.99999% (7N)
Zonse zonyansa zazitsulo ≤0.1 ppm
Zomwe zili ndi okosijeni ≤5 ppm
Kupatuka kwa kristalo ≤2 °
Kukaniza (300 K) 0.1–0.3 Ω·cm
Ubwino wa Njira
Kuchulukirachulukira: Maboti osungunuka amitundu ingapo amawonjezera kuchuluka kwa batch ndi 3–5× poyerekeza ndi mapangidwe wamba.
Kuchita bwino: Vacuum yolondola komanso kuwongolera kutentha kumathandizira kuti pakhale mitengo yochotsa zonyansa.
Ubwino wa Crystal: Kukula kwapang'onopang'ono kwambiri (<3 mm/h) kumatsimikizira kusasunthika kochepa komanso kukhulupirika kwagalasi imodzi.
7N tellurium yoyeretsedwayi ndi yofunika kwambiri pa ntchito zapamwamba, kuphatikizapo zowunikira ma infrared, CdTe thin-film solar cell, ndi semiconductor substrates.

Zolozera:
kutanthauza deta yoyesera kuchokera ku maphunziro owunikiridwa ndi anzawo pa kuyeretsedwa kwa tellurium.