Studies on Thermophysical Properties of CaO and MgO by γ-Ray Attenuation

The study on temperature dependent γ -ray attenuation and thermophysical properties of CaO and MgO has been carried out in the temperature range 300 K–1250 K using different energies of γ -beam, namely, Am (0.0595 MeV), Cs (0.66 MeV), and Co (1.173 MeV and 1.332 MeV) on γ -ray densitometer fabricated in our laboratory. The linear attenuation coefficients ( μ l ) for the pellets of CaO and MgO as a function of temperature have been determined using γ -beam of different energies. The coefficients of temperature dependence of density have been reported. The variation of density and linear thermal expansion of CaO and MgO in the temperature range of 300 K–1250 K has been studied and compared with the results available in the literature. The temperature dependence of linear attenuation coefficients, density, and thermal expansion has been represented by second degree polynomial. Volume thermal expansion coefficients have been reported.