Properties of Eu3+-doped zirconia ceramics synthesized under spherical shock waves and vacuum annealing
| Autor: | E. V. Ivanova, M. A. Yagovkina, Oksana G. Bogdanova, G. A. Gusev, Boris E. Burakov, V.A. Kravets, K.N. Orekhova, M.V. Zamoryanskaya, Tatiana B. Popova |
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| Rok vydání: | 2019 |
| Předmět: |
Diffraction
Shock wave Materials science Mechanical Engineering Metals and Alloys Detonation Cathodoluminescence 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Condensed Matter::Materials Science Mechanics of Materials visual_art Phase (matter) Materials Chemistry visual_art.visual_art_medium Cubic zirconia Ceramic Composite material 0210 nano-technology Monoclinic crystal system |
| Zdroj: | Journal of Alloys and Compounds. 808:151778 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2019.151778 |
| Popis: | The work is dedicated to the study of the phase stability of (Zr, Hf, Y, Eu)Ox ceramics with the calculated formula Zr0.41Hf0.41Y0.09Eu0.09O1.91 synthesized by the co-precipitation method and subjected to detonation in spherical shock waves and vacuum annealing at 1700 °C. The phase composition of the starting precursor and ceramic samples was investigated by X-ray diffraction analysis. To analyze the local structure of samples, the method of rare-earth ion spectroscopy was applied with the use of the local cathodoluminescence technique. It was demonstrated that detonation in spherical shock waves leads to a decrease of residual monoclinic phase in ceramics, and vacuum annealing leads to its complete disappearance. The significant changes in the phase composition of ceramics after the impact of high temperature in vacuum and high pressure under spherical shock waves are not observed. Such materials can be used as stable matrices for actinide immobilization or advanced luminescence materials to be applied under extreme conditions. |
| Databáze: | OpenAIRE |
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