Positron Annihilation Spectroscopy Complex for Structural Defect Analysis in Metal–Hydrogen Systems

Positron Annihilation Spectroscopy Complex for Structural Defect Analysis in Metal–Hydrogen Systems

Dettagli Bibliografici
Parent link:	Materials Vol. 15, iss. 5.— 2022.— [1823, 15 p.]
Enti autori:	Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики, Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение ядерно-топливного цикла
Altri autori:	Bordulev Yu. S. Yuri Sergeevich, Laptev R. S. Roman Sergeevich, Kudiyarov V. N. Victor Nikolaevich, Elman R. R. Roman Romanovich, Popov A. V. Aleksandr Viktorovich, Kabanov D. V. Denis Viktorovich, Ushakov I. A. Ivan Alekseevich, Lider A. M. Andrey Markovich
Riassunto:	Title screen The current work is devoted to developing a system for the complex research of metal–hydrogen systems, including in an in situ mode. The system consists of a controlled gas reactor with a unique reaction chamber, a radioisotope positron source, and a positron annihilation spectroscopy complex. The use of the system enables in situ investigation of the defect structure of solids in hydrogen sorption–desorption processes at temperatures up to 900 °C and pressures up to 50 bar. Experimental investigations of magnesium and magnesium hydride during thermal annealing were carried out to approve the possibilities of the developed complex. It was shown that one cycle of magnesium hydrogenation–dehydrogenation resulted in the accumulation of irreversible hydrogen-induced defects. The defect structure investigation of the magnesium–hydrogen system by positron annihilation techniques was supplemented with a comprehensive study by scanning electron microscopy, X-ray diffraction analysis, and hydrogen sorption–desorption studies.
Pubblicazione:	2022
Soggetti:	электронный ресурс труды учёных ТПУ positron annihilation defects in situ neutron activation 64Cu nuclear reactor hydrogen-induced defects thermal vacancies metal–hydrogen systems magnesium hydride аннигиляция дефекты нейтронная активация ядерные реакторы
Accesso online:	https://doi.org/10.3390/ma15051823
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667265

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