Ultrasonic relaxation of TeWB glasses at low temperatures
The ultrasonic relaxation of tellurite glasses xB2O3 – 70 TeO2 – (30 – x) WO3, 0 ≤ x ≤ 30 mol% was investigated by measuring the ultrasonic attenuation (αL) in these glasses in the thermal range 140–300 K (T) at various frequencies (f). Some characteristics can be obtained from the relation of αL–T,...
| Autores principales: | , , , , , , , |
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| Formato: | Artículo |
| Publicado: |
Elsevier
2021
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| _version_ | 1825937362381701120 |
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| author | Saddeek, Yasser B. Ivanov, V. Saddek, Amr Bakr Zakaly, Hesham M. H. Sidek, H. A. A. Mahmoud, I. S. Matori, K. A. Zaid, M. H. M. |
| author_facet | Saddeek, Yasser B. Ivanov, V. Saddek, Amr Bakr Zakaly, Hesham M. H. Sidek, H. A. A. Mahmoud, I. S. Matori, K. A. Zaid, M. H. M. |
| author_sort | Saddeek, Yasser B. |
| collection | UPM |
| description | The ultrasonic relaxation of tellurite glasses xB2O3 – 70 TeO2 – (30 – x) WO3, 0 ≤ x ≤ 30 mol% was investigated by measuring the ultrasonic attenuation (αL) in these glasses in the thermal range 140–300 K (T) at various frequencies (f). Some characteristics can be obtained from the relation of αL–T, such as the average activation energy (Ep) and the attempt frequency (f0). The variables Ep and f0 are a function of frequency and B2O3 content. Moreover, the relation αL–T accounts well for the oscillations of the oxygen atoms in a relaxation process. Such a physical process is originated from transmitting ultrasonic energy to the oscillating oxygen atoms in a dual-well potential. The relaxation process is inspected by a model named central force one. The subtracted different physical variables from such a model are a function of B2O3 content. |
| first_indexed | 2024-03-06T10:58:23Z |
| format | Article |
| id | upm.eprints-93459 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T10:58:23Z |
| publishDate | 2021 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-934592023-01-12T07:23:47Z http://psasir.upm.edu.my/id/eprint/93459/ Ultrasonic relaxation of TeWB glasses at low temperatures Saddeek, Yasser B. Ivanov, V. Saddek, Amr Bakr Zakaly, Hesham M. H. Sidek, H. A. A. Mahmoud, I. S. Matori, K. A. Zaid, M. H. M. The ultrasonic relaxation of tellurite glasses xB2O3 – 70 TeO2 – (30 – x) WO3, 0 ≤ x ≤ 30 mol% was investigated by measuring the ultrasonic attenuation (αL) in these glasses in the thermal range 140–300 K (T) at various frequencies (f). Some characteristics can be obtained from the relation of αL–T, such as the average activation energy (Ep) and the attempt frequency (f0). The variables Ep and f0 are a function of frequency and B2O3 content. Moreover, the relation αL–T accounts well for the oscillations of the oxygen atoms in a relaxation process. Such a physical process is originated from transmitting ultrasonic energy to the oscillating oxygen atoms in a dual-well potential. The relaxation process is inspected by a model named central force one. The subtracted different physical variables from such a model are a function of B2O3 content. Elsevier 2021-07 Article PeerReviewed Saddeek, Yasser B. and Ivanov, V. and Saddek, Amr Bakr and Zakaly, Hesham M. H. and Sidek, H. A. A. and Mahmoud, I. S. and Matori, K. A. and Zaid, M. H. M. (2021) Ultrasonic relaxation of TeWB glasses at low temperatures. Results in Physics, 26. art. no. 104336. pp. 1-8. ISSN 2211-3797 https://www.sciencedirect.com/science/article/pii/S2211379721004642 10.1016/j.rinp.2021.104336 |
| spellingShingle | Saddeek, Yasser B. Ivanov, V. Saddek, Amr Bakr Zakaly, Hesham M. H. Sidek, H. A. A. Mahmoud, I. S. Matori, K. A. Zaid, M. H. M. Ultrasonic relaxation of TeWB glasses at low temperatures |
| title | Ultrasonic relaxation of TeWB glasses at low temperatures |
| title_full | Ultrasonic relaxation of TeWB glasses at low temperatures |
| title_fullStr | Ultrasonic relaxation of TeWB glasses at low temperatures |
| title_full_unstemmed | Ultrasonic relaxation of TeWB glasses at low temperatures |
| title_short | Ultrasonic relaxation of TeWB glasses at low temperatures |
| title_sort | ultrasonic relaxation of tewb glasses at low temperatures |
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