Отправить статью по E-mail Anomalous Elastic and Inelastic Properties of the Cox(CaF2)100 –x Nanogranular Composites
- Авторы: Tarasov D.1
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Учреждения:
- Military Educational and Scientific Center of Air Forces, Zhukovsky and Gagarin Air Force Engineering Academy
- Выпуск: Том 64, № 6 (2019)
- Страницы: 848-852
- Раздел: Physical Science of Materials
- URL: https://journals.rcsi.science/1063-7842/article/view/203579
- DOI: https://doi.org/10.1134/S1063784219060215
- ID: 203579
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Аннотация
Elastic (G) and inelastic (Q–1) properties of the Cox(CaF2)100 –x (x = 41–84 at %) nanocomposites fabricated with the aid of ion-beam sputtering are studied in a temperature interval of 170–750 K. Maximum internal friction related to hopping of Co atoms inside metal granules is revealed at a temperature of 227 K. It is shown that the maxima increase with increasing concentration of metal phase. A noticeable increase in dependence Q–1(T) at a temperature of greater than 675 K is caused by diffusion of vacancies in the Co granules under geometrical confinements.
Об авторах
D. Tarasov
Military Educational and Scientific Center of Air Forces, Zhukovsky and Gagarin Air Force Engineering Academy
Автор, ответственный за переписку.
Email: demetriys@mail.ru
Россия, Voronezh, 394064
