The hafnium aluminides HfAl3 and Hf2Al3 studied by perturbed angular correlations with Ta-181 and Cd-111 probes
2000 | journal article. A publication with affiliation to the University of Göttingen.
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The hafnium aluminides HfAl3 and Hf2Al3 studied by perturbed angular correlations with Ta-181 and Cd-111 probes
Wodniecki, P.; Wodniecka, B.; Kulinska, A.; Uhrmacher, M. & Lieb, K.-P. (2000)
Journal of Alloys and Compounds, 312(1-2) pp. 17-24. DOI: https://doi.org/10.1016/S0925-8388(00)01124-5
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- Authors
- Wodniecki, P.; Wodniecka, B.; Kulinska, A.; Uhrmacher, Michael; Lieb, Klaus-Peter
- Abstract
- The electric quadrupole hyperfine interactions for Hf-181/Ta-181 and In-111/Cd-111 probes in the polycrystalline hafnium aluminides HfAl3 and Hf,AI, were measured in the temperature range 30-1100 K. On the basis of the similarities of the numbers, sizes and asymmetries of electric field gradients, lattice site allocations were made. In all matrices, Hf-181/Ta-181 was found to substitute into the Hf site. The In-111/Cd-111 impurities were also assigned to the Hf lattice site in the low-temperature phase of HfAl3, which has DO23 structure, but appear to substitute into the two non-equivalent Al sites in the Hf2Al3 phase, which has Fdd7 crystallographic structure. (C) 2000 Elsevier Science BN. All rights reserved.
- Issue Date
- 2000
- Status
- published
- Publisher
- Elsevier Science Sa
- Journal
- Journal of Alloys and Compounds
- ISSN
- 0925-8388