| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9817467 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 5 Pages |
Abstract
Cadmium niobate pyrochlore (Cd2Nb2O7) single crystals have been irradiated at 150, 300, 450 and 600Â K using 1.0Â MeV Au2+ ions over fluences ranging from 0.01 to 3.5Â ions/nm2. The relative disorder on the Cd sublattice in the as-irradiated Cd2Nb2O7 has been analyzed based on in situ 3.0Â MeV He+ Rutherford backscattering spectrometry along the ã1Â 0Â 0ã-axial channeling direction. The results show that the crystal can be readily amorphized under the Au2+ irradiation at or below 450Â K; however, the relative Cd disorder tends to saturate at 600Â K, and full amorphization does not occur at doses up to 5Â dpa. Isochronal annealing (20Â min) also has been performed at temperatures from 180 to 295Â K for samples irradiated at 150Â K. Thermal recovery of the disorder has been observed below room temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
W. Jiang, W.J. Weber, L.A. Boatner,