Structure and properties of water free Nd2O3 doped low silica calcium aluminate glasses

• Published in: Journal of non-crystalline solids Vol. 247; no. 1-3; pp. 196 - 202
• Main Authors: SAMPAIO, J. A, CATUNDA, T, GANDRA, F. C. G, GAMA, S, BENTO, A. C, MIRANDA, L. C. M, BAESSO, M. L
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Amsterdam Elsevier 02.06.1999
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Disordered solids; Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; Glass transitions; Glasses; Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity); Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physics; Specific phase transitions; Structure of solids and liquids; crystallography; Vickers hardness; Inorganic compounds; Refractive index; Crystallization; Neodymium oxides; Glass; Doped materials; Thermal diffusivity; Experimental study; Density; Calcium oxides; Silicon oxides; Glass transformations; Magnesium oxides; Optical absorption; Aluminium oxides
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/S0022-3093(99)00062-9

Title glasses are melted under vacuum conditions. Measurements of thermal diffusivity, density, optical absorption coefficient, T subg, crystallization temperature, dilatometric softening temperature, and Vickers microhardness are carried out. Results provide information about the sample's structure and show that, for Nd2O3 concentration up to 5 wt%, there is no devitrification of the samples. The decrease in hardness and thermal diffusivity is about 8%, while the density increases about 8% with the increasing concentration of Nd2O3. Thermomechanical properties combined with their quantum efficiency indicate that this material is a candidate for an ative medium for solid-state lasers. 27 refs.