Results of Recent Microstructural Characterization of Irradiated U-Mo Dispersion Fuels with Al Alloy Matrices that Contain Si
RERTR U-Mo dispersion fuel plates are being developed for application in research reactors throughout the world. Of particular interest is the irradiation performance of U-Mo dispersion fuels with Si added to the Al matrix. Si is added to improve the performance of U-Mo dispersion fuels. Microstructural examinations have been performed on fuel plates with either Al-0.2Si or 4043 Al (~4.8% Si) alloy matrix in the as-fabricated and/or as-irradiated condition using optical metallography and/or scanning electron microscopy. Fuel plates with either matrix can have Si-rich layers around the U-7Mo particles after fabrication, and during irradiation these layers were observed to grow in thickness and to become Si-deficient in some areas of the fuel plates. For the fuel plates with 4043 Al, this was observed in fuel plate areas that were exposed to very aggressive irradiation conditions.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- DOE - NE
- DOE Contract Number:
- DE-AC07-99ID-13727
- OSTI ID:
- 928084
- Report Number(s):
- INL/CON-08-13808; TRN: US0804578
- Resource Relation:
- Conference: RRFM-2008 INTERNATIONAL MEETING ON RESEARCH REACTOR FUEL MANAGEMENT,Hamburg, Germany,03/02/2008,03/05/2008
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of Irradiation on the Microstructure of U-7Mo Dispersion Fuel with Al-2Si Matrix
Characterization of the Microstructure of Irradiated U-Mo Dispersion Fuel with a Matrix that Contains Si