Study of thermal properties of glass system 77% B2O3-23% PbO doped with ZnO in the temperature range 300 to 700 K
- 50 Downloads
The thermal properties: specific heat capacity (Cp), thermal conductivity (λ), 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.
KeywordsPolymer Heat Transfer Thermal Conductivity Heat Capacity Thermal Property
Unable to display preview. Download preview PDF.
- 1.J. Schatz andG. Simons,J. Geophys. Res. 77 (1972) 35.Google Scholar
- 2.A. A. El-Sharkawy, A. S. Hilal andS. R. Atalla,Phys. Status Solidi (a) 83 (1984) 123.Google Scholar
- 3.A. A. El-Sharkawy, A. M. Abousehly andE. S. M. Higgy,Phys. Status Solidi (a) 95 (1986) 605.Google Scholar
- 4.D. P. Button, R. Tandon, C. King.M. H. Velez, H. L. Tuller andD. R. Uhlmann,J. Non-Cryst. Solids 49 (1982) 129.Google Scholar
- 5.W. D. Kingery, H. K. Dows andD. R. Whilmann. “Introduction to Ceramics” (John Wiley, New York, 1976).Google Scholar
- 6.C. Kittel, “Introduction to Solid State Physics”, 5th Edn (John Wiley, New York, 1967).Google Scholar
- 7.A. A. El-Sharkawy, I. H. Rashed, M. S. Zaghloul andM. H. Ghoniem,Phys. Status Solidi (a) 85 (1984) 429.Google Scholar