Analysis of the Snoek relaxation in NbO alloys through the loss tangent distribution function
The Snoek relaxation in an Nb-0.15at.%O alloy reported in the literature, measured at different temperatures and in forced oscillations, is analysed within the framework of the theory of the tangent distribution function and its equivalent form, the integrated distribution, which has been introduced...
Guardado en:
| Autor principal: | |
|---|---|
| Otros Autores: | |
| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
1994
|
| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| Sumario: | The Snoek relaxation in an Nb-0.15at.%O alloy reported in the literature, measured at different temperatures and in forced oscillations, is analysed within the framework of the theory of the tangent distribution function and its equivalent form, the integrated distribution, which has been introduced recently in the literature. It is demonstrated that the relaxation spectrum can be described in terms of a frequency dependence of the pre-exponential factor in the Arrhenius relationship of the relaxation times. A single value for the activation enthalpy is encountered in the whole range of temperatures and frequencies covered by the measurements. Finally, the results are compared with those previously obtained in an Nb-0.6at.%O alloy as a function of temperature and in free oscillations, where similar values were obtained for the parameters that characterize the relaxation process. © 1994. |
|---|---|
| Bibliografía: | Nowick, Berry, (1972) Anelastic Relaxation in Crystalline Solids, , Academic Press, New York Povolo, Matteo, (1992) Mater. Trans. Jpn. Inst. Met, 33, p. 824 Woirgard, (1977) Scr. Metall, 11, p. 641 |
| ISSN: | 09258388 |
| DOI: | 10.1016/0925-8388(94)90558-4 |