Abstract
20K2O-30TiO2-50P2O5 (KTP) glass was elaborated by conventional quenching method. The density and molar volume values of KTP glass are determined. The structure of the glass was performed by Raman spectroscopy. The results revealed that KTP glass consists mainly of orthophosphate and pyrophosphate units, and the titanium occupies the octahedral sites in the glassy matrix. The controlled crystallization of KTP glass was carried out to develop glass-ceramic (GC-KTP). X-ray diffraction was used to identify the crystallized phases in (GC-KTP). Dielectric and conductivity parameters of the glass-ceramic are determined by impedance spectroscopy in the frequency range of 300 Hz to 1 MHz under various temperatures from 300 to 473 K. The results obtained showed that the dielectric parameters (permittivity and dielectric losses) increase at high-temperature and low-frequency and the conductivity is thermally activated and follows the Arrhenius behavior.
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