J. Phys. IV France
Volume 125, June 2005
Page(s) 197 - 199

J. Phys. IV France 125 (2005) 197-199

DOI: 10.1051/jp4:2005125046

Thermo-optical properties of iron-doped low silica calcium aluminosilicate glasses determined by photothermal methods

R.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.

© EDP Sciences 2005