Study of thermal properties of glass system 77% B2O3-23% PbO doped with ZnO in the temperature range 300 to 700 K |
| |
| Authors: | A. M. Abousehly A. M. Abou-El-Azm M. H. Wasfy A. A. El-Sharkawy M. B. Osman |
| |
| Affiliation: | (1) Department of Physics, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt;(2) Department of Physics, Faculty of Girls, Ain Shams University, Cairo, Egypt |
| |
| Abstract: | The thermal properties: specific heat capacity (Cp), thermal conductivity ( ), and thermal diffusivity (a) of the glass system 77% B2O3-23% PbO doped with ZnO, were measured in the temperature range 300 to 700 K. It was found that electronic conduction has no significant contribution to the thermal conductivity. The main mechanism of heat transfer is therefore due to both phonons and photons. A discussion of the results is made in view of various theoretical aspects. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
