Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1787095 | Current Applied Physics | 2012 | 8 Pages |
Abstract
⺠Prepared alkali- borate glasses (1 â x) [29Na2O â 4Al2O3 â 67B2O3] â x ZnO. ⺠Attenuation studied showed well-defined peak shifts toward high temperature and frequency. ⺠Attributed to thermally activated relaxation governed by the Arrhenius relationship. ⺠The number of loss centers dependence of the elastic moduli and oxygen density. ⺠Activation energy and attempt frequency increase with increase the ZnO.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
G.E. El-Falaky, M.S. Gaafar, N.S. Abd El-Aal,