I-7N ye-Tellurium ye-Crystal yokuKhula kunye neNkqubo yokuCoca iiNkcukacha ngeeParameters zobuGcisa

Inkqubo ye-7N yokucoca i-tellurium idibanisa ukucocwa kwendawo kunye ne-directional crystallization technologies. Iinkcukacha zenkqubo eziphambili kunye neeparamitha zichazwe ngezantsi:

1. Inkqubo yokuCoca indawo
Uyilo lweZixhobo

Izikhephe zokunyibilikisa zezowuni ezinemigangatho emininzi: Ububanzi buyi-300–500 mm, ubude buyi-50-80 mm, zenziwe ngequartz okanye igraphite.
Inkqubo yokufudumeza: Iikhoyili ezingesetyhula ezikwaziyo ukumelana nobushushu obuchanekileyo obuyi ±0.5°C kunye nobushushu obusebenzayo obuyi-850°C.
Iiparamitha eziphambili

Ivacuum: ≤1 × 10⁻³ Pa yonke indawo ukukhusela i-oxidation kunye nosulelo.
Isantya sohambo lwezowuni: 2–5 mm/h (ukujikeleza okukodwa nge-drive shaft).
Iqondo lobushushu: 725±5°C kwindawo etyhidiweyo ngaphambili, ukuphola ukuya ku-<500°C kumda wokulandela umkhondo.
Ukudlula: 10–15 imijikelo; ukususwa kakuhle> 99.9% yokungcola kunye ne-coefficients yokwahlula <0.1 (umzekelo, Cu, Pb).
2. Inkqubo yeCrystallization yomkhombandlela
ULungiselelo lweNyibilika

Izinto eziphathekayo: I-5N tellurium icocwe ngokucokiswa kwendawo.
Iimeko zokunyibilika: Inyibilike phantsi kwe-Ar gas engasebenziyo (≥99.999% ubunyulu) kwi-500-520 °C kusetyenziswa ukufudumeza okuphezulu kwe-induction.
Ukhuseleko olunyibilikayo: Isigqubuthelo segraphite sobunyulu obuphezulu ukucinezela i-volatilization; ubunzulu bedama elinyibilikisiweyo bugcinwe ku-80–120 mm.
Ulawulo lweCrystallization

Izinga lokukhula: 1-3 mm / h kunye ne-gradient yeqondo lokushisa elithe nkqo le-30-50 ° C / cm.
Inkqubo yokupholisa: Isiseko sobhedu esipholiswe ngamanzi sokupholisa phantsi okunyanzeliswayo; ukupholisa ngemitha phezulu.
Ukwahlukaniswa kokungcola: I-Fe, i-Ni, kunye nezinye izinto ezingcolileyo zityetyiswa kwimida yengqolowa emva kwemijikelo ye-3-5 yokubuyisela, ukunciphisa ukugxila kumanqanaba e-ppb.
3. Iimetriki zoLawulo loMgangatho
IParameter yoMgangatho weNgcaciso yexabiso
Ukucoceka kokugqibela ≥99.99999% (7N)
Ubumdaka obupheleleyo besinyithi ≤0.1 ppm
Umxholo weoksijini ≤5 ppm
Ukutenxa ngokweCrystal orientation ≤2°
Ukuxhathisa (300 K) 0.1–0.3 Ω·cm
Izinto eziluncedo kwinkqubo
Ukunyibilika: Izikhephe ezinyibilikayo ezinomaleko amaninzi zonyaka zonyusa umthamo webhetshi nge-3–5× xa kuthelekiswa noyilo oluqhelekileyo.
Ukusebenza kakuhle: Ivacuum echanekileyo kunye nolawulo lobushushu lwenza amazinga aphezulu okususa ukungcola.
Umgangatho weCrystal: Izinga lokukhula okucothayo kakhulu (<3 mm / h) liqinisekisa ukuxinana kwe-dislocation ephantsi kunye nokuthembeka kwekristale enye.
Le tellurium esulungekisiweyo ye-7N ibalulekile kwizicelo eziphambili, kubandakanywa i-infrared detectors, i-CdTe ifilimu encinci ye-solar cell, kunye ne-semiconductor substrates.

IiReferensi:
bonisa idatha yovavanyo evela kwizifundo eziphononongwe ngontanga malunga nokuhlanjululwa kwe-tellurium.