Microstructure of RERTR Du-Alloys Irradiated with Krypton Ions up to 100 dpa

Journal Article · Fri Apr 01 04:00:00 EDT 2011 · Journal of Nuclear Materials

DOI:https://doi.org/10.1016/j.jnucmat.2011.01.121· OSTI ID:1016173

Gan, J; Keiser, Jr, D D; Wachs, D M; Miller, B D; Allen, T R; Kirk, M; Rest, J

The radiation stability of the interaction product formed at the fuel–matrix interface of research reactor dispersion fuels, under fission-product bombardment, has a strong impact on fuel performance. Three depleted uranium alloys were cast that consisted of the following five phases to be investigated: U(Si, Al)3, (U, Mo)(Si, Al)3, UMo2Al20, U6Mo4Al43, and UAl4. Irradiation of transmission electron microscopy (TEM) disc samples with 500-keV Kr ions at 200 °C to doses up to 100 displacements per atom (dpa) were conducted using a 300-keV electron microscope equipped with an ion accelerator. TEM results show that the U(Si, Al)3 and UAl4 phases remain crystalline at 100 dpa without forming voids. The (U, Mo)(Si, Al)3 and UMo2Al20 phases become amorphous at 1 and 2 dpa, respectively, and show no evidence of voids at 100 dpa. The U6Mo4Al43 phase goes to amorphous at less than 1 dpa and reveals high density voids at 100 dpa.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1016173
• Report Number(s): INL/JOU-10-18773
• Journal Information: Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Journal Issue: 1 - 3 Vol. 411; ISSN 0022-3115
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ALLOYS
ATOMS
DEPLETED URANIUM
ELECTRON MICROSCOPES
IRRADIATION
KRYPTON IONS
MICROSTRUCTURE
PERFORMANCE
RADIATIONS
RERTR DU-Alloys
RESEARCH REACTORS
STABILITY
TRANSMISSION ELECTRON MICROSCOPY