Uburyo bwo gusukura tellurium ya 7N buhuza ikoranabuhanga ryo gutunganya zone na directional crystallization. Ibisobanuro by'ingenzi by'uburyo n'ibipimo byabyo birasobanuwe hano hepfo:
1. Uburyo bwo gutunganya akarere
Igishushanyo mbonera cy'ibikoresho
Ubwato bushongesha ahantu hanini bugizwe n'ibice byinshi: Ubugari bwa mm 300–500, uburebure bwa mm 50–80, bukozwe muri quartz cyangwa grafiti ifite isuku nyinshi.
Sisitemu yo gushyushya: Imigozi irwanya imirasire ifite ubushobozi bwo kugenzura ubushyuhe bwa ± 0.5°C n'ubushyuhe ntarengwa bwo gukora bwa 850°C.
Ibipimo by'ingenzi
Umwobo w'amazi: ≤1×10⁻³ Pa yose kugira ngo hirindwe ogisijeni n'ubwandu.
Umuvuduko w'urugendo rw'akarere: 2–5 mm/h (guzunguruka mu cyerekezo kimwe unyuze mu gice cy'imodoka).
Ubushyuhe bungana: 725±5°C imbere y'agace kashongeshejwe, bukonje kugeza kuri <500°C ku nkengero z'inyuma.
Impamyabushobozi: 10–15 cycles; ubushobozi bwo gukuraho >99.9% ku myanda ifite coefficients zo gutandukanya <0.1 (urugero, Cu, Pb).
2. Uburyo bwo guhuza kristali mu cyerekezo
Gutegura gushonga
Ibikoresho: 5N tellurium isukurwa binyuze mu gutunganya ahantu.
Imiterere y'ishonga: Ishongeshejwe munsi ya gaze ya Ar idafite isuku (ubuziranenge bwa ≥99.999%) kuri 500–520°C hakoreshejwe ubushyuhe bwinshi.
Uburinzi bw'ibintu bishonga: Igipfukisho cya grafiti gifite isuku nyinshi kugira ngo kidahinduka; ubujyakuzimu bw'ikidendezi gishongeshejwe buguma kuri mm 80–120.
Kugenzura imiterere y'amakristali
Igipimo cyo gukura: 1–3 mm/h hamwe n'ubushyuhe buhagaze bwa 30–50°C/cm.
Uburyo bwo gukonjesha: Ishingiro ry'umuringa wakonjeshejwe n'amazi kugira ngo hakonjeshwe hasi; gukonjesha hakoreshejwe imirasire hejuru.
Gutandukanya umwanda: Fe, Ni, n'indi myanda ikungahaye ku mbibi z'ingano nyuma y'inshuro 3-5 zo gushonga, bigabanura ingano ya ppb.
3. Ibipimo byo kugenzura ubuziranenge
Indangaciro Isanzwe y'agaciro
Ubuziranenge bwa nyuma ≥99.99999% (7N)
Imyanda yose hamwe y'icyuma ≤0.1 ppm
Ingano ya ogisijeni ≤5 ppm
Gutandukana kw'icyerekezo cya kristu ≤2°
Ubushobozi bwo guhangana n'umuyaga (300 K) 0.1–0.3 Ω·cm
Ibyiza by'Ibikorwa
Uburyo bwo gupima: Ubwato bushongesha ahantu henshi bwongereye ubushobozi bwo gushongesha ho 3–5× ugereranije n'imiterere isanzwe.
Ingufu: Gukoresha imashini isukura neza no kugenzura ubushyuhe bituma habaho igipimo cyo gukuraho imyanda.
Ubwiza bwa kristale: Igipimo cyo gukura buhoro cyane (<3 mm/h) gitanga ubucucike buke bwo kwimuka no kuba kristale imwe gusa.
Iyi tellurium ya 7N itunganyijwe ni ingenzi cyane mu bikorwa bigezweho, harimo ibikoresho bipima infrared, uturemangingo tw’izuba twa CdTe, hamwe n’ibikoresho bya semiconductor.
Ingero:
garagaza amakuru y'igerageza yavuye mu bushakashatsi bwasuzumwe n'urungano ku isuku ya tellurium.
Igihe cyo kohereza: Werurwe-24-2025