RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS
The effect of various process variables on the powder properties of recycled U3O8 from MnO-Al2O3 doped large grain UO2 pellets and the effect of those recycled U3O8 powders on the sintered density and grain size of MnO-Al2O3 doped large grain UO2 pellets have been investigated. The evolution of morp...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573315300978 |
| _version_ | 1818614940382003200 |
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| author | JANG SOO OH DONG-JOO KIM JAE HO YANG KEON SIK KIM YOUNG WOO RHEE YANG-HYUN KOO |
| author_facet | JANG SOO OH DONG-JOO KIM JAE HO YANG KEON SIK KIM YOUNG WOO RHEE YANG-HYUN KOO |
| author_sort | JANG SOO OH |
| collection | DOAJ |
| description | The effect of various process variables on the powder properties of recycled U3O8 from MnO-Al2O3 doped large grain UO2 pellets and the effect of those recycled U3O8 powders on the sintered density and grain size of MnO-Al2O3 doped large grain UO2 pellets have been investigated. The evolution of morphology, size, and BET surface area of the recycled U3O8 powders according to the respective variation of the thermo-mechanical treatment variables of oxidation temperature, powder milling, and sequential cyclic heat treatment of oxidation and then reduction was examined. The correlation between the BET surface area of recycled U3O8 powder and the sintered pellet properties of MnO-Al2O3 doped pellets showed that the pellet density and grain size of doped pellets were increased and then saturated by increasing the BET surface area of the recycled U3O8 powder. The density and grain size of the pellets were maximized when the BET surface area of the recycled U3O8 powder was in the vicinity of 3m2/g. Among the process variables applied in this study, the cyclic heat treatment followed by low temperature oxidation was a potential process combination to obtain the sinter-active U3O8 powder. |
| first_indexed | 2024-12-16T16:26:00Z |
| format | Article |
| id | doaj.art-7db69ead90704c7ebe59791abfb9aa89 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-16T16:26:00Z |
| publishDate | 2014-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-7db69ead90704c7ebe59791abfb9aa892022-12-21T22:24:45ZengElsevierNuclear Engineering and Technology1738-57332014-02-0146111712410.5516/NET.07.2013.043RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETSJANG SOO OHDONG-JOO KIMJAE HO YANGKEON SIK KIMYOUNG WOO RHEEYANG-HYUN KOOThe effect of various process variables on the powder properties of recycled U3O8 from MnO-Al2O3 doped large grain UO2 pellets and the effect of those recycled U3O8 powders on the sintered density and grain size of MnO-Al2O3 doped large grain UO2 pellets have been investigated. The evolution of morphology, size, and BET surface area of the recycled U3O8 powders according to the respective variation of the thermo-mechanical treatment variables of oxidation temperature, powder milling, and sequential cyclic heat treatment of oxidation and then reduction was examined. The correlation between the BET surface area of recycled U3O8 powder and the sintered pellet properties of MnO-Al2O3 doped pellets showed that the pellet density and grain size of doped pellets were increased and then saturated by increasing the BET surface area of the recycled U3O8 powder. The density and grain size of the pellets were maximized when the BET surface area of the recycled U3O8 powder was in the vicinity of 3m2/g. Among the process variables applied in this study, the cyclic heat treatment followed by low temperature oxidation was a potential process combination to obtain the sinter-active U3O8 powder.http://www.sciencedirect.com/science/article/pii/S1738573315300978Doped Large Grain PelletRecycling ProcessMnO-Al2O3U3O8 Powder |
| spellingShingle | JANG SOO OH DONG-JOO KIM JAE HO YANG KEON SIK KIM YOUNG WOO RHEE YANG-HYUN KOO RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS Nuclear Engineering and Technology Doped Large Grain Pellet Recycling Process MnO-Al2O3 U3O8 Powder |
| title | RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS |
| title_full | RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS |
| title_fullStr | RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS |
| title_full_unstemmed | RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS |
| title_short | RECYCLING PROCESS OF U3O8 POWDER IN MnO-Al2O3 DOPED LARGE GRAIN UO2 PELLETS |
| title_sort | recycling process of u3o8 powder in mno al2o3 doped large grain uo2 pellets |
| topic | Doped Large Grain Pellet Recycling Process MnO-Al2O3 U3O8 Powder |
| url | http://www.sciencedirect.com/science/article/pii/S1738573315300978 |
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