Hydrostatic Parameters and Domain Effects in Novel 2-2 Composites Based on PZN-0.12PT Single Crystals. (27th February 2011)

• Record Type: Journal Article
• Authors: Topolov, Vitaly Yu.; Glushanin, Sergei V.; Panich, Alexander A.
• Other Names: Shi Zhifei Academic Editor.
• Is Part Of: Smart materials research. Volume 2011(2011)
• Publication Date: 2011-02-27
• Subjects: Smart materials -- Periodicals; Smart materials; Periodicals; Electronic journals; 620.11
• DOI: 10.1155/2011/173064
• Languages: English
• ISSNs: 2090-3561

Abstract

Abstract : A novel 0.88Pb(Zn1/3 Nb2/3 )O3 -0.12PbTiO3 crystal/polymer composite with 2-2 connectivity is studied at variable orientations of spontaneous polarisation vector of the crystal component. Orientation and volume-fraction dependences of the hydrostatic piezoelectric coefficientsd h *, e h *, andg h * and hydrostatic electromechanical coupling factork h * are related to the important role of the piezoelectric and elastic anisotropy of single-domain layers of the 2-2 composite. The record value of| e h ∗ | ≈ 77 C/m 2 near the absolute-minimum point and the correlation between the hydrostatic (e h * ) and piezoelectric (e 3 j * ) coefficients and between the hydrostatic (g h * ) and piezoelectric (g 3 j * ) coefficients are first established. This discovery is of value for hydrostatic and piezotechnical applications. The hydrostatic performance of the composite based on the single-domain 0.88Pb(Zn1/3 Nb2/3 )O3 -0.12PbTiO3 crystal is compared to the performance of the 2–2 composites based on either the same polydomain crystal or the related single-domain crystal.