Open AccessDirectional solidification, thermo-mechanical and optical properties of (Mg_xCa_1-x)_3Al_2Si_3O_12 glasses doped with Nd^3+ ions
Author(s) -
D. Sola,
D. Conejos,
Jon Martínez de Mendívil,
Luis Ortega-San-Martín,
G. Lifante,
José Peña
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.026356
Subject(s) - materials science , ion , doping , analytical chemistry (journal) , absorption spectroscopy , ionic bonding , absorption (acoustics) , glass transition , optics , composite material , polymer , chemistry , optoelectronics , physics , organic chemistry , chromatography
In this work glass rods of (Mg(x)Ca(1-x))(3)Al(2)Si(3)O(12) (x = 0, 0.5 and 1) doped with 1 wt% Nd(2)O(3) were produced by the laser floating zone technique. Thermo-mechanical and spectroscopic properties have been evaluated. The three glass samples present good thermo-mechanical properties, with similar hardness, toughness and glass transition temperatures. The spectroscopic characterization shows spectral shifts in absorption and emission spectra. These spectral shifts together with Judd-Ofelt intensity parameters and ionic packing ratio have been used to investigate the local structure surrounding the Nd(3+) ions and the covalency of the Nd-O bond. All obtained results agree and confirm the higher covalency of the Nd-O bond in the Ca(3)Al(2)Si(3)O(12) glass.