Non-destructive analysis of didymium and praseodymium molybdate crystals using energy dispersive X-ray fluorescence technique
| Autor: | P. N. Kotru, Daisy Joseph, Sanjay Pandita, C.K. Bhat |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Radiation Materials science Praseodymium Analytical chemistry chemistry.chemical_element X-ray fluorescence Didymium 02 engineering and technology Molybdate 021001 nanoscience & nanotechnology 01 natural sciences Samarium Crystal chemistry.chemical_compound chemistry Impurity 0103 physical sciences 0210 nano-technology Single crystal |
| Zdroj: | Radiation Physics and Chemistry. 125:9-13 |
| ISSN: | 0969-806X |
| Popis: | Analysis of didymium (Di) and praseodymium molybdate crystals were carried out using energy dispersive X-ray fluorescence (EDXRF). The assigned empirical chemical formulae of the composites were tested and verified by the EDXRF technique by estimating experimental major elemental concentration ratios. On the Basis of these ratios, the established formulae for some of the composite materials have been verified and suggestions made for their refinement. Non-destructive technique used in this analysis enables to retain the original crystal samples and makes rapid simultaneous scan of major elements such as La, Pr, Ned and Mo as well as impurities such as Ce. Absence of samarium(Sm) in the spectrum during analysis of didymium molybdate crystals indicated an incomplete growth of mixed rare earth single crystal. These crystals (e.g.,Di) are shown to be of modified stoichiometry with Ce as trace impurity. |
| Databáze: | OpenAIRE |
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