Title :
Giant electric-field-induced strain in lead zirconate based antiferroelectrics
Author :
Sugawara, Yutaka ; Uchino, Kenji
Author_Institution :
Dept. of Phys., Sophia Univ., Tokyo, Japan
Abstract :
Antiferroelectric ceramics with a composition Pb0.99Nb 0.02[(ZrxSn1-x)1-yTiy ] 0.98O3 PNZST were studied in terms of electric field induced strain properties. Electric field induced strain associated with a phase transition from antiferroelectric (AFE) to ferroelectric (FE) was discovered to reach more than 0.3% in magnitude. The electric field induced strain of the PNZST system was increased by changing the composition of the sample. The strain magnitude of PNZST increased with increasing Zr content. Acoustic emission (AE) due to the abrupt elastic strain change was measured. The AE generation associated with the AFE-FE transition was much less than that for the domain reversal in the ferroelectric phase; this suggests a rather high reliability of the antiferroelectric ceramics when driven by an electric field
Keywords :
acoustic emission; antiferroelectricity; ceramics; electric domains; ferroelectric transitions; internal stresses; lead compounds; niobium compounds; piezoelectricity; PNZST; Pb0.99Nb0.02[(ZrxSn1-x )1-yTiy] 0.98O3; Zr content; acoustic emission; actuator; antiferroelectrics; ceramics; composition; domain reversal; elastic strain change; electric field induced strain properties; ferroelectric phase; phase transition; Acoustic emission; Capacitive sensors; Ceramics; Ferroelectric materials; Iron; Lead; Niobium; Strain measurement; Tin; Zirconium;
Conference_Titel :
Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on
Conference_Location :
Urbana-Champaign, IL
Print_ISBN :
0-7803-0190-0
DOI :
10.1109/ISAF.1990.200255
