Title :
Investigation of phase forming at synthesis of langasite-piezoelectric
Author :
Dubovik, M.F. ; Korshikova, T.L. ; Proskurnya, O.M.
Author_Institution :
Inst. for Single Crystals, Acad. of Sci., Kharkiv, Ukraine
Abstract :
General thermodynamic characteristics of langasite S0 298, ΔH0298, ΔG0 298, ΔG(T), Cp(T) and melting points of the eutectics were calculated. It was established that optimal temperature of langasite synthesis T≅1723 K; the ions gallium and silicon are most mobile reagents
Keywords :
gallium compounds; lanthanum compounds; melting point; piezoelectric materials; thermodynamic properties; Gibbs energy; La3Ga5SiO14; enthalpy; entropy; eutectic temperature; heat capacity; langasite; melting point; phase formation; piezoelectric material; synthesis; thermodynamic characteristics; Silicon; Temperature; Thermodynamics;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841435