|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5454234||1398617||2017||6 صفحه PDF||سفارش دهید||دانلود کنید|
- Investigation of structural character of U1âyGdyO2âx solid solutions.
- Defect structures in U1âyGdyO2âx solid solutions were evaluated by Raman spectroscopy.
- Oxygen deficiency due to Gd content causes Raman band related to oxygen vacancy.
The U1âyGdyO2âx solid solutions with yÂ =Â 0.005, 0.01, 0.03, 0.05 and 0.1 were characterized by Raman spectroscopy to investigate the defect structure induced by oxygen vacancies. The oxygen deficiencies of solid solutions were estimated by the relation between the doping level and a lattice parameter calculated from X-ray diffraction patterns. Raman mode shifts to higher wavenumber with increasing doping level showed that crystal lattice disorder due to oxygen vacancies. The frequency shifts and relative ratio of Raman modes were enabled to be the indicator for composition, defect and oxygen vacancy of U1âyGdyO2âx solid solutions.
Journal: Journal of Nuclear Materials - Volume 486, 1 April 2017, Pages 216-221