Feasibility study of the production of bulk stable Ge isotopes by the hydrogen plasma chemical reduction of fluorides
| Autor: | R.A. Kornev, A.M. Potapov, Nickolay Abrosimov, P.G. Sennikov, A.D. Bulanov, V.A. Gavva |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Zone melting Materials science Hydrogen Isotopes of germanium Mechanical Engineering Inorganic chemistry chemistry.chemical_element Germanium 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Germanium tetrafluoride 01 natural sciences chemistry.chemical_compound chemistry Mechanics of Materials Yield (chemistry) 0103 physical sciences Tetrafluoride General Materials Science 0210 nano-technology Fluoride |
| Zdroj: | Materials Science and Engineering: B. 244:1-5 |
| ISSN: | 0921-5107 |
| Popis: | A «fluoride» method for preparation of germanium isotopes was developed and tested, including two main stages: 1) germanium deposition in the process of plasma chemical hydrogen reduction of germanium tetrafluoride with the subsequent compaction of the deposited polycrystalline germanium; 2) zone refining and single grystal growth of germanium if required. Degree of conversion of germanium tetrafluoride of 90–95% was achieved with a productivity of up to 10 g/h. The total yield of about 38% was attained for 72Ge n-type single crystal with a purity of >7 N. The method suggested has been compared with methods described in literature. Its advantage is the high yield production of germanium isotopes directly from enriched tetrafluoride without optional reagents. Plasma-chemical reduction of germanium tetrafluoride does not require sophisticated equipment. Thus, the “fluoride” method could be promising for production of germanium isotopes on industrial scale. |
| Databáze: | OpenAIRE |
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