Comportamiento eléctrico de vidrios funcionales con base en TeO2

S. TERNY; M. A. DE LA RUBIA; S. BAROLIN; R. E. ALONSO; J. DE FRUTOS; M.A. FRECHERO

BOLETíN DE LA SOCIEDAD ESPAñOLA DE CERáMICA Y VIDRIO

SOC ESPANOLA CERAMICA VIDRIO

Lugar: Madrid; Año: 2014 vol. 53 p. 15 - 20

0366-3175

In this paper we study the structural and electrical behavior of glass-ceramic material of general formula: xMgO (1-x) (0.5V 2 O 5 .0.5MoO 3 )2TeO 2 (0≤x≤0.9) through measurements of density, molar volume, oxygen packing density (OPD), differential scanning calorimetry (DSC) and Raman spectroscopy: electric behavior was studied by impedance spectroscopy. We found that magnesium cation induces the growth of slightly crystallized areas inside the material. Those nanocrystallizations were detected to a greater extent by atomic force microscopy (AFM) and in lesser extent by X-ray diffraction (XRD). Regarding the electrical measurements, it can be established that magnesium cation does not act as good ionic conductor in this material.