Cikakkun Bayanan Tsarin Girma da Tsarkakewa na Tellurium 7N tare da Sigogi na Fasaha

Tsarin tsarkakewa na 7N tellurium ya haɗu da fasahar tace yanki da kuma fasahar crystallization ta hanya ɗaya. An bayyana muhimman bayanai da sigogi a ƙasa:

1. Tsarin Gyaran Yankuna
Tsarin Kayan Aiki

Kwale-kwalen narkewa na yanki mai faɗi da yawa: Diamita 300–500 mm, tsayi 50–80 mm, an yi shi da quartz ko graphite mai tsarki.
Tsarin dumama: Na'urorin jure zafi na rabin zagaye tare da daidaiton sarrafa zafin jiki na ±0.5°C da matsakaicin zafin aiki na 850°C.
Maɓallan Maɓalli

‌Vacuum‌: ≤1×10⁻³ Pa a ko'ina don hana iskar shaka da gurɓatawa.
Saurin tafiya na yanki‌: 2–5 mm/h (juyawa ta hanyar shaft ɗin tuƙi ɗaya-ɗaya).
‌Zafin jiki mai sauƙi‌: 725±5°C a gaban yankin narkakken abu, yana sanyaya zuwa <500°C a gefen da ke biye.
Wucewa: zagaye 10-15; ingancin cirewa >99.9% ga ƙazanta tare da ma'aunin rarrabuwa <0.1 (misali, Cu, Pb).
2. Tsarin Gilashin Alƙawari
Shiri na Narkewa

Kayan aiki: An tsarkake 5N tellurium ta hanyar tace yankin.
Yanayin narkewa: Ana narkewa a ƙarƙashin iskar gas mai aiki da iskar Ar (tsaftacewa ≥99.999%) a zafin 500–520°C ta amfani da dumama mai yawan mita.
Kariyar narkewa: Murfin graphite mai tsafta don hana dumamawa; zurfin tafkin da aka narke a 80-120 mm.
Kula da Kirkirar Gilashi

‌Ƙimar girma‌: 1–3 mm/h tare da yanayin zafi a tsaye na 30–50°C/cm.
Tsarin sanyaya: Tushen jan ƙarfe mai sanyaya ruwa don sanyaya ƙasa da aka tilasta; sanyaya iska a sama.
Rarraba kazanta: Fe, Ni, da sauran ƙazanta suna wadatarwa a iyakokin hatsi bayan sake zagayowar narkewa sau 3-5, suna rage yawan zuwa matakan ppb.
‌3. Ma'aunin Kula da Inganci‌
Nazarin Darajar Daidaitaccen Siga
Tsabta ta ƙarshe ≥99.99999% (7N)
Jimlar ƙazanta na ƙarfe ≤0.1 ppm
Yawan iskar oxygen ≤5 ppm
Bambancin yanayin lu'ulu'u ≤2°
Juriya (300 K) 0.1–0.3 Ω·cm
Fa'idodin Tsarin Aiki
‌Scalability‌: Kwale-kwalen narkewa na yanki mai faɗi da yawa suna ƙara ƙarfin batch da 3-5× idan aka kwatanta da ƙira na gargajiya.
Inganci: Daidaitaccen injin tsabtace iska da kuma sarrafa zafi yana ba da damar cire ƙazanta mai yawa.
Ingancin lu'ulu'u: Yawan girma mai jinkirin girma (<3 mm/h) yana tabbatar da ƙarancin yawan nakasa da kuma daidaiton lu'ulu'u ɗaya.
Wannan ingantaccen tellurium na 7N yana da matuƙar muhimmanci ga aikace-aikacen ci gaba, gami da na'urorin gano infrared, ƙwayoyin hasken rana na CdTe, da kuma abubuwan da ke cikin semiconductor.

Nassoshi:
nuna bayanan gwaji daga nazarin da takwarorinsu suka yi nazari a kai kan tsarkakewar tellurium.