Open AccessЭлектретный эффект в композитах полимер-сегнетопьезокерамика с различной электроотрицательностью полимерной матрицы и катионов пьезофазы
Author(s) -
М.А. Курбанов,
И.С. Рамазанова,
З.А. Дадашев,
У.В. Юсифова,
Г.Х. Гусейнова,
К.К. Азизова,
И.А. Фараджзаде
Publication year - 2018
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2018.01.45321.8490
Subject(s) - electret , materials science , tetragonal crystal system , electronegativity , lead zirconate titanate , composite material , piezoelectricity , composite number , ferroelectricity , ferroelectric ceramics , dispersion (optics) , ceramic , crystallization , dielectric , polymer , chemical engineering , crystal structure , chemistry , crystallography , organic chemistry , optics , physics , optoelectronics , engineering
The influence of the electronegativity of phases, which is controlled by composite crystallization under the conditions of the effect of the electric discharge and covalence of piezophase cations, on the formation mechanism of the stable electret effect is determined. The specific features of the formation of the electret effect in composites based on polyolefins (HDPE, PP), fluorine-containing polymers (F42), and ferroelectric piezoelectric ceramics of the family of lead zirconate–titanate (Pb(Zr,Ti)O_3) crystallized under conditions of the effect of electric discharge plasma, are revealed. A physical model of electret composites taking into account the role of homocharges and heterocharges formed in a composite by its dispersion with piezoceramic particles of various structures—rhombohedral, tetragonal, and heterogeneous—is proposed.