Enhanced 95 Zr diffusion in grain boundaries of nano-crystalline ZrO2 ·9.5 mol% Y2 O3
| Autor: | Ágnes Szökefalvi-Nagy, Ulrich Brossmann, H. D. Carstanjen, Cornelia Noll, Hans-Eckhardt Schaefer, Harald Drings |
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| Rok vydání: | 2008 |
| Předmět: |
Orders of magnitude (temperature)
Chemistry Diffusion Analytical chemistry Surfaces and Interfaces Atmospheric temperature range Condensed Matter Physics Nanocrystalline material Grain size Surfaces Coatings and Films Electronic Optical and Magnetic Materials Crystallography Mole Materials Chemistry Grain boundary Electrical and Electronic Engineering Nano crystalline |
| Zdroj: | physica status solidi (a). 206:54-58 |
| ISSN: | 1862-6300 |
| DOI: | 10.1002/pssa.200824077 |
| Popis: | The 95Zr cation self-diffusivity in fully-dense, nanocrystalline cubic ZrO2·9.5 mol% Y2O3 (n-YSZ, mean grain size 50 nm) has been studied by tracer self-diffusion and precision-grinding sectioning. In the temperature range of 897 °C to 937 °C the 95Zr diffusion coefficient in grain boundaries was found to be about 7 orders of magnitude higher than in single crystals of similar composition. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| Databáze: | OpenAIRE |
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