Deep purification of tellurium, zinc and cadmium for use in electronic devices
| Autor: | V. N. Abryutin, E. V. Davydova, M. A. Egorov, I. I. Maronchuk, D. D. Sanikovich |
|---|---|
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering. 25:164-174 |
| ISSN: | 2413-6387 1609-3577 |
| DOI: | 10.17073/1609-3577-2022-2-164-174 |
| Popis: | A combined method of profound purification of Cd, Zn and Te developed by the Authors and allowing one to produce high-purity materials in a vertical reactor unit has been considered. The method includes the following processes: filtration refinement of metal alloy with the possibility of its vacuum degassing and additional purification through an oxide layer; first distillation with the possibility to use gettering additions in the melt and gettering filters; melt degassing with the removal of highly volatile impurities to the condenser in rough vacuum; second distillation and metal casting for weighed quantities. The Authors have developed and produced a test model of the unit for the experimental profound purification of metals using the method developed herein. Physical experiments have been conducted for obtaining 99,9999 wt.% purity Cd, Zn and Te for 30 residual impurities with a product yield of at least 55%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|