On the determination of growth stress during oxidation of pure zirconium at elevated temperature
| Autor: | Gérard Moulin, L. Kurpaska, L. Lahoche, Jérôme Favergeon |
|---|---|
| Přispěvatelé: | Roberval (Roberval), Université de Technologie de Compiègne (UTC) |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Scanning electron microscope Oxide General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 01 natural sciences Isothermal process [SPI.MAT]Engineering Sciences [physics]/Materials [SPI]Engineering Sciences [physics] chemistry.chemical_compound 0103 physical sciences Cubic zirconia Composite material ComputingMilieux_MISCELLANEOUS 010302 applied physics Zirconium Atmospheric pressure Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Surfaces Coatings and Films chemistry Acoustic emission 13. Climate action 0210 nano-technology |
| Zdroj: | Applied Surface Science Applied Surface Science, Elsevier, 2018, 446, pp.27-35. ⟨10.1016/j.apsusc.2018.02.215⟩ |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2018.02.215 |
| Popis: | An experimental approach have been proposed to evaluate growth of stress during high temperature oxidation of pure zirconium. The development of stress in the oxide scale has been investigated experimentally in in-situ conditions by combining the Deflection Test in Monofacial Oxidation (DTMO) with Acoustic Emission analysis (AE). Microstructure of the sample were studied by using Scanning Electron Microscopy technique. Oxidation experiments were performed continuously during 24 h at 400 °C and 500 °C in air under normal atmospheric pressure. Taking into account purely elastic behaviour of the material, primary evolution of growth stress developed in the oxide scale during oxidation process have been estimated. Presented study of the Zr/ZrO2 system revealed two opposite phenomena of stress relief when cooling from 400 °C and 500 °C to room temperature. This study is presented as a tool to understand the phenomena of stress evolution in the zirconia layer during isothermal treatment at high temperature and after cooling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect