journal article·2018-11Open access

Structural and electrical characterization of glasses in the Li2O–CaO–B2O3 system

N.B. Pimentel, V.R. Mastelaro, J.-C. M'Peko, S.W. Martin, S.S. Rojas, J.E. De Souza

Abstract

Abstract Glasses in the ternary xLi2O + (33-x)CaO + 67B2O3 tetraborate system, with x = 0, 5, 10, 15, 20, 25, 30 and 33 mol%, were prepared by melting and casting. The glass structure, and thermal, and electrical response of highly transparent and homogeneous glasses were evaluated by X-Ray Diffraction (XRD), Differential Thermal Analysis (DTA), Fourier Transform Infrared Spectroscopy (FTIR) and Impedance Spectroscopy (IS). The glass transition temperature (Tg) decreases as CaO is substituted by Li2O (increasing x), while the thermal stability against crystallization to the supercooled liquid in the region Tg
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Research context

OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Microwave Dielectric Ceramics Synthesis

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