The defect structure of CaF2:U3+
| Autor: | M.-T. Fernandez-Diaz, J.A. Campbell, J.-P. Laval, M. Foster |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
chemistry.chemical_classification
Dopant Mechanical Engineering Neutron diffraction Metals and Alloys Analytical chemistry Crystallographic defect Ion law.invention Divalent Tetragonal crystal system chemistry Mechanics of Materials law Materials Chemistry Electron paramagnetic resonance Nuclear chemistry Solid solution |
| Zdroj: | Journal of Alloys and Compounds. :111-114 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/s0925-8388(01)00977-x |
| Popis: | Neutron diffraction on two single crystals of CaF 2 doped with 6 and 12 mole% UF 3 shows anionic vacancies on the normal F ion site and excess anions on an interstitial site F. The ratio of F sites to anionic vacancies and to U 3+ dopant cation indicates that the cluster is of the 1:0:n (n=2, 3) type found for homologous CaF 2 :LaF 3 solid solution. Electron Paramagnetic Resonance measurements on isolated U 3+ ions ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect