J. Phys. IV France 125 (2005) 197-199
Thermo-optical properties of iron-doped low silica calcium aluminosilicate glasses determined by photothermal methodsR.K. Miura1, P.T. Udo1, J.H. Rohling1, E.A. Falcão1, A.N. Medina1, J.R.D. Pereira1, A.C. Bento1, M.L. Baesso1, S.L. Oliveira2 and L.A.O. Nunes2
1 Departamento de Física, Universidade Estadual de Maringá, Maringá, PR, Brazil
2 Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
The aim of this work is to investigate Fe3+ and Fe2+ influence on the thermo-optical properties of low silica calcium aluminosilicate glass. Conventional optical absorption spectroscopy, thermal relaxation calorimetry and thermal lens spectrometry were applied to analyze the samples. The results provided the specific heat, the thermal diffusivity and the optical absorption coefficient as a function of the ions concentration. A significant variation in these parameters was observed, revealing the influence of the iron ions on the glass structure.
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