Effect of oxygen potential on the sintering behavior of MgO-based heterogeneous fuels containing (Pu,Am)O2−x
Source abstract
Abstract
Abstract The effect of oxygen potential on the sintering behavior of MgO-based heterogeneous fuels containing (Pu, Am)O 2− x was experimentally investigated. Sintering tests in various atmospheres, i.e. air, moisturized 4%H 2 –Ar, and 4%H 2 –Ar atmosphere, were carried out. The sintering behavior was found to be significantly affected by the oxygen potential in the sintering atmosphere. The sintered density decreased with decreasing oxygen potential. The (Pu, Am)O 2− x phase sintered in a reductive atmosphere had hypostoichiometry. The aggregates of the (Pu, Am)O 2− x phase sintered in the reductive atmosphere grew, in comparison with those in the oxidizing one. The sintering mechanism was discussed in terms of the difference in sintering behavior of (Pu, Am)O 2− x and MgO.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Radioactive element chemistry and processing · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. Osaka · J. Nucl. Sci. Technol. · 2007 · 44 · 30910.3327/jnst.44.309 ↗
2. M. Osaka, S. Miwa, K. Tanaka, I. Sato, T. Hirosawa, H. Obayashi, K. Mondo, Y. Akutsu, Y. Ishi, S. Koyama, H. Yoshimochi, K. Tanaka, in: C.A. Brebbia, V. Popov (Eds.), Energy and Sustainability, Transaction: Ecology and the Environment, vol. 105, Wessex Institute of Technology, UK, 2007, p. 357.
3. Croixmarie · J. Nucl. Mater. · 2003 · 320 · 1110.1016/S0022-3115(03)00162-4 ↗
4. Osaka · Ceram. Int. · 2006 · 32 · 65910.1016/j.ceramint.2005.04.026 ↗
5. S. Miwa, M. Osaka, K. Tanaka, Y. Ishi, H. Yoshimochi, K. Tanaka, in: Proceedings of GLOBAL 2007, Boise, USA, September 9–13, 2007, p. 903.
6. Sudre · J. Am. Ceram. Soc. · 1992 · 75 · 324110.1111/j.1151-2916.1992.tb04417.x ↗
7. Raj · Acta Metall. · 1984 · 32 · 100310.1016/0001-6160(84)90003-8 ↗
8. Evans · J. Am. Ceram. Soc. · 1982 · 65 · 49710.1111/j.1151-2916.1982.tb10340.x ↗
9. Fernandez · J. Mater. Sci. Lett. · 2003 · 22 · 11910.1023/A:1021810803064 ↗
10. Kutty · J. Nucl. Mater. · 2002 · 305 · 15910.1016/S0022-3115(02)00934-0 ↗
11. Kutty · J. Nucl. Mater. · 2001 · 297 · 12010.1016/S0022-3115(01)00614-6 ↗
12. Kutty · J. Nucl. Mater. · 1999 · 264 · 1010.1016/S0022-3115(98)00490-5 ↗
13. Osaka · J. Alloys Compd. · 2005 · 397 · 11010.1016/j.jallcom.2005.01.024 ↗
14. Miwa · 2006 · 400
15. M. Osaka, K. Kurosaki, S. Yamanaka, J. Nucl. Mater. 357 (2006) 69.10.1016/j.jnucmat.2006.05.044 ↗
16. Miwa · J. Alloys Compd. · 2007 · 444&445 · 61010.1016/j.jallcom.2006.10.059 ↗
17. Chikalla · J. Inorg. Nucl. Chem. · 1967 · 29 · 228110.1016/0022-1902(67)80282-3 ↗
18. M.N. Raraman, Sintering of Ceramics, CRC Press, New York, 2007, p. 46.
19. Hj. Matzke, in: T. Sorensen (Ed.), Nonstoichiometric Oxides, Academic Press, New York, 1981, p. 156.10.1016/B978-0-12-655280-5.50009-2 ↗
20. Matzke · J. Chemical Society, Faraday Trans. · 1990 · 86 · 124310.1039/ft9908601243 ↗