Open AccessИсследование нелинейных процессов в сегнетоэлектрической керамике в слабых электрических полях
Author(s) -
Н.А. Швецова,
С.А. Щербинин,
И.А. Швецов,
М.А. Луговая,
А.Н. Рыбянец
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.14.49666.18224
Subject(s) - piezoelectricity , dielectric , nonlinear system , electric field , materials science , piezoelectric coefficient , ferroelectricity , interpretation (philosophy) , acoustics , ferroelectric ceramics , field (mathematics) , condensed matter physics , computer science , physics , composite material , optoelectronics , mathematics , quantum mechanics , pure mathematics , programming language
The paper proposes a new method for studying nonlinear processes in ferroelectric ceramics under external influences, based on the measurement and analysis of piezoelectric resonance spectra. The method provides high accuracy in determining complex elastic, dielectric and piezoelectric constants of piezoelectric materials, as well as their changes under external influences. To study nonlinear processes, we measured the dependences of complex electromechanical parameters of ferroelectrically «soft» piezoceramics based on PZT system on dc electric field. A physical interpretation of the results is proposed.