Light scattering by boron oxide in a nonuniform temperature field and upon varying temperature
| Autor: | N. A. Bokov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Arrhenius equation Scattering Chemistry Analytical chemistry Activation energy 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences Molecular physics Light scattering 0104 chemical sciences symbols.namesake Temperature gradient Boron oxide 0103 physical sciences Materials Chemistry Ceramics and Composites symbols Relaxation (physics) Intensity (heat transfer) |
| Zdroj: | Glass Physics and Chemistry. 43:385-388 |
| ISSN: | 1608-313X 1087-6596 |
| Popis: | It is established that the time dependence of the intensity of the polarized component of visible light scattering by boron oxide under the influence of a constant temperature gradient is characterized by the same features as in the case of temperature variation. Based on this analogy, the relaxation times of the process of increasing the intensity in a nonuniform temperature field for different temperature intervals are determined. The activation energy of the process of increasing the intensity for different experimental conditions is calculated using the Arrhenius equation, and it is found that the calculated activation energy values are in satisfactory agreement with each other and with the data of other studies. The uniform behavior of the time dependence of the intensity of visible light scattering and close activation energy values point to common physical reasons for the structural changes occurring on the boron oxide structure approaching the equilibrium and stationary states. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink