X-ray diffraction study of a tungsten-based material for the first wall of ITER
Autor: | A V Voronin, A Kozushkina, A A Levin, R V Sokolov, S I Pavlov |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Journal of Physics: Conference Series. 1697:012134 |
ISSN: | 1742-6596 1742-6588 |
Popis: | Methods of X-ray diffraction (XRD), Scanning Electron Microscopy and Energy Dispersive X-ray Spectroscopy were applied to POLEMA W sample after He plasma irradiation. The W reflections of the plasma treated sample exhibit an evident asymmetry characterized by a negative asymmetry parameter. Using the Williamson-Hall Plot technique the XRD reflection asymmetry has been successfully quantitatively described in frame of a model with two W phases with slightly different unit cell parameters and essentially different crystallite size and microstrain values. |
Databáze: | OpenAIRE |
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