7N Tellurium Crystal Growth da Tsarkake Tsari Cikakkun Cikakkun Ciki tare da Ma'aunin Fasaha

Tsarin tsarkakewa na tellurium na 7N ya haɗu da gyaran yanki da fasahar crystallization. Mahimmin cikakkun bayanai da sigogi an tsara su a ƙasa:

1. Tsarin Gyaran Yanki
Zane Kayan Kayan Aiki

Jiragen narkewar yanki mai yawan Layer annular: Diamita 300-500 mm, tsayi 50-80 mm, wanda aka yi da ma'adini mai tsafta ko graphite.
Tsarin dumama: Semi-madauwari resistive coils tare da yanayin kula da daidaito na ± 0.5 ° C da matsakaicin zafin aiki na 850 ° C.
Maɓallin Maɓalli

‌Vacuum‌: ≤1×10⁻³ Pa ko'ina don hana iskar shaka da gurɓatawa.
Gudun tafiya na yanki: 2-5 mm / h (juyawa ta hanyar tuƙi).
Zazzabi gradient: 725 ± 5 ° C a gaban yankin narkakkar, sanyaya zuwa <500°C a gefen sawu.
Wuta: 10-15 hawan keke; iyawar cirewa> 99.9% don ƙazanta tare da ƙididdiga masu rarraba <0.1 (misali, Cu, Pb).
2. Tsari Tsari na Crystallization
Narke Shiri

Material: 5N tellurium an tsarkake ta hanyar gyaran yanki.
Yanayin narkewa: Narke ƙarƙashin inert Ar gas (≥99.999% tsarki) a 500-520°C ta amfani da dumama shigar da mitoci.
Kariyar Narke: Ƙaƙƙarfan murfin graphite mai tsabta don murkushe haɓakawa; Zurfin tafkin narkakkar da aka kiyaye a 80-120 mm.
Sarrafa crystallization

Ƙimar girma: 1-3 mm / h tare da madaidaicin zafin jiki na 30-50 ° C / cm.
Tsarin kwantar da hankali: Tushen jan ƙarfe mai sanyaya ruwa don sanyaya ƙasa mai tilastawa; radiyo sanyaya a saman.
Rashin tsabta: Fe, Ni, da sauran ƙazanta ana wadatar su a iyakokin hatsi bayan sake sake zagayowar 3-5, rage yawan taro zuwa matakan ppb.
3. Ma'aunin Kula da inganci
Matsakaicin Matsayin Ma'auni
Tsaftar ƙarshe ≥99.99999% (7N)
Jimlar ƙazantattun ƙarfe ≤0.1 ppm
Oxygen abun ciki ≤5 ppm
Ra'ayin kristal ≤2°
Juriya (300 K) 0.1-0.3 Ω · cm
Amfanin Tsari
Scalability‌: Multi-Layer annular zone narkewa kwale-kwale yana ƙara ƙarfin tsari da 3-5 × idan aka kwatanta da ƙirar al'ada.
Inganci‌: Madaidaicin vacuum da thermal control yana ba da damar ƙimar cire ƙazanta mai yawa.
‌Crystal Quality‌: Ultra-slow girma rates (<3 mm/h) tabbatar da low dislocation yawa da kuma guda-crystal mutunci.
Wannan ingantaccen 7N tellurium yana da mahimmanci ga aikace-aikace na ci gaba, gami da na'urorin gano infrared, CdTe thin-fim hasken rana Kwayoyin, da semiconductor substrates.

Nassoshi:
nuna bayanan gwaji daga binciken da aka yi bitar takwarorinsu akan tsarkakewar tellurium.