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Information × Registration Number 0225U000303, (0120U104031) , R & D reports Title Development of the X-ray diffraction (XRD) and thermal desorption spectroscopy (TDS) techniques for investigation of proton (deuterium/helium) induced near-surface effects in fusion-relevant material popup.stage_title Розробка методик дифракційного рентгенівського аналізу та термодесорбціонної спектроскопії для дослідження впливу протонів (дейтерій/гелій) на приповерхневі шари матеріалів, що мають стосунок до термоядерної енергетики Head Kalinkevych Oleksii M., Кандидат фізико-математичних наук Registration Date 08-01-2025 Organization Institute of Applied Physics National Academy of Sciences of Ukraine popup.description1 The task of the proposed research consists in the combination of the X-ray diffraction (XRD) with grazing incidence geometry and the long-wave (soft) X-ray radiation and thermal desorption spectroscopy (TDS) method to study hydrogen behavior in fusion-relevant materials. This will make it possible to monitor the near-surface structural defects, which contribute to the hydrogen permeation, retention and to the overall decrease of hydrogen fracture resistance of the fusion-relevant materials. popup.description2 The thermal desorption spectroscopy installations were improved and calibrated. The linear response of the mass spectrometer signal and the chromatographic signal when different amounts of hydrogen were introduced was shown. The structural characteristics of metal coatings were studied depending on the conditions of application and subsequent processing. In particular, the stress state of the surface of massive materials and magnetron coatings made of the same metal on steel substrates was studied using the X-ray tensometry method. A significant level of macrostresses was found in magnetron-deposited metal coatings depending on their thickness. It was concluded that the permeability of hydrogen through protective tungsten coatings of relatively small thickness (500-250 nm) can be due not only to their insufficient thickness, but also to a high level of macrostresses. Product Description popup.authors Danylchenko Serhii M. Zhinchenko Yevhenii I. Zaporozhets Viacheslav K. Kalinkevych Oksana V. Kalinkevych Oleksii M. Kochenko Olekcandr V. Novikov Serhii V. Chivanov Vadym D. popup.nrat_date 2025-01-08 Close