Rate control sintering of the uranium dioxide
| Autor: | V. G. Baranov, M A Burlakova, A. V. Tenishev, R S Kuzmin, V V Mikhalchik |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
020209 energy Uranium dioxide technology industry and agriculture Pellets Oxide Sintering Rate control macromolecular substances 02 engineering and technology Shrinkage rate equipment and supplies Isothermal process chemistry.chemical_compound Operation mode chemistry 0202 electrical engineering electronic engineering information engineering Composite material |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 130:012021 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/130/1/012021 |
| Popis: | The application of rate controlled sintering (RCS) technique for fabricating oxide fuel pellets in industrial conditions is investigated. Green pellets of UO2 (with no additives) which underwent industrial-type compacting were sintered in reducing Ar - 8% H2 medium using dynamic and isothermal RCS modes with exposure at 1600 °C during 8 hours. Decreasing shrinkage rate resulted in growth of sintered density for the dynamic RCS mode. Opposite to the results of earlier works [1,2], decreasing heating rate did not result in reducing sintering rate. Isothermal mode allowed sintering rate to be maintained between 0.1- 0.15%/min. Temperature-time modes obtained using RCS are close to the operation mode of through-type furnace used for mass production. |
| Databáze: | OpenAIRE |
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