Ts'ebetso ea tlhoekiso ea 7N tellurium e kopanya mahlale a ntlafatso ea libaka le mahlale a crystallization ea tataiso. Lintlha tsa bohlokoa tsa ts'ebetso le li-parameter li hlalositsoe ka tlase:
1. Mokhoa oa ho hloekisa libaka
Moralo oa Lisebelisoa
Likepe tse qhibilihang tsa libaka tse ngata-ngata: bophara ba 300-500 mm, bophahamo ba 50-80 mm, tse entsoeng ka quartz e hloekileng haholo kapa graphite.
Sistimi ea ho futhumatsa: Likhoele tse thibelang mocheso o ka tlase ho ± 0.5 ° C le mocheso o phahameng oa 850 ° C.
Li-Parameters tsa bohlokoa
Vacuum : ≤1×10⁻³ Pa hohle ho thibela oxidation le tšilafalo.
Lebelo la maeto a libaka: 2-5 mm / h (ho potoloha ka tsela e sa lekanyetsoang ka drive shaft).
Thempereichara gradient: 725 ± 5 ° C sebakeng se ka pele se entsoeng ka ho qhibilihisoa, ho pholile ho ea ho <500 ° C moeling o latelang.
Ho feta: Lipotoloho tse 10-15; ho tlosa katleho> 99.9% bakeng sa litšila tse nang le li-coefficients tsa karohano <0.1 (mohlala, Cu, Pb).
2. Ts'ebetso ea Crystallization ea Directional
Tokiso ea Melt
Boitsebiso: 5N tellurium e hloekisitsoe ka ho hloekisa libaka.
Maemo a ho qhibiliha: E qhibilihisitsoe ka tlas'a khase ea Ar gas (≥99.999% bohloeki) ho 500-520 ° C e sebelisa mocheso o phahameng oa maqhubu.
Tšireletso e qhibilihisitsoeng: Sekoaelo sa graphite se phahameng-hloekileng ho hatella volatilization; botebo ba letamo le qhibilihisitsoeng bo bolokoa ho 80-120 mm.
Taolo ea Crystallization
Sekhahla sa khōlo: 1–3 mm/h ka mocheso o otlolohileng oa 30–50°C/cm.
Sistimi e pholileng: Setsi sa koporo se pholileng ka metsi bakeng sa ho pholisa tlase ho qobelloa; pholiso ea mahlaseli hodimo.
Karohano ea litšila: Fe, Ni, le litšila tse ling li ntlafatsoa meeling ea lijo-thollo ka mor'a 3-5 remelting cycles, ho fokotsa ho tsepamisa mohopolo ho maemo a ppb.
3. Metrics ea Taolo ea Boleng
Reference Standard Value Reference
Bohloeki ba ho qetela ≥99.99999% (7N)
Kakaretso ea litšila tsa tšepe ≤0.1 ppm
Likahare tsa oksijene ≤5 ppm
Ho kheloha ha kristale ≤2°
Ho hanyetsa (300 K) 0.1–0.3 Ω·cm
Melemo ea Ts'ebetso
Scalability: Likepe tse qhibilihang tse nang le mekhahlelo e mengata li eketsa bokhoni ba batch ka 3–5× ha li bapisoa le meralo e tloaelehileng.
Katleho: Vacuum e nepahetseng le taolo ea mocheso li nolofalletsa litekanyetso tse phahameng tsa ho tlosa litšila.
Boleng ba Crystal: Sekhahla sa khōlo e liehang haholo (<3 mm/h) e netefatsa hore ho na le tšubuhlellano e tlase ea kristale le botšepehi ba kristale e le 'ngoe.
Tellurium ena e hloekisitsoeng ea 7N e bohlokoa bakeng sa lits'ebetso tse tsoetseng pele, ho kenyelletsa li-detectors tsa infrared, CdTe thin-film solar cell cell, le semiconductor substrates.
Litšupiso:
bolela lintlha tsa liteko ho tsoa lithutong tse hlahlobiloeng ke lithaka mabapi le tlhoekiso ea tellurium.
Nako ea poso: Mar-24-2025