Processing and Properties of Relaxor-Type Ferroelectric Pb(Sc 1/2 Nb 1/2 )O 3 -Pb(Ni 1/3 Nb 2/3 )O 3 -PbTiO 3 Perovskite Ceramics

Autor:	K. Kusumoto, K. Yuse, Tadashi Sekiya, Yoshiro Shimojo
Rok vydání:	2002
Předmět:	Permittivity Materials science Electrostriction Oxide Analytical chemistry Dielectric Condensed Matter Physics Ferroelectricity Piezoelectricity Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Ceramic Perovskite (structure)
Zdroj:	Ferroelectrics. 270:277-282
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150190211216
Popis:	Relaxor-type ferroelectric Pb(Sc 1/2 Nb 1/2 )O 3 -Pb(Ni 1/3 Nb 2/3 )O 3 -PbTiO 3 (PSN-PNN-PT) perovskites were prepared through two-steps process consisting of heat treatment and then acid treatment of oxide mixtures containing PbO in amount greater than in the perovskite composition. The dielectric and electromechanical behaviors were examined for the (1-x)(6PNN-4PSN)-xPT and (1-x)(4PNN-6PSN)-xPT ceramics. In both the series, relaxor behavior was remarkable in the PNN-richer side. With increasing x value, the dielectric constant-temperature curve turned form broad to sharp, the dielectric constant at the peak increased and the peak position shifted toward higher temperature side. The field-induced strain mode underwent a change from electrostrictive mode to piezoelectric mode via electrostrictive-piezoelectric overlapping mode as increasing x value. The (1-x)(6PNN-4PSN)-xPT series rather resulted in the higher field-induced strain than the (1-x)(4PNN-6PSN)-xPT series. The composition 48PNN-32PSN-20PT sho...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6f0a906f8d01d330e7ac83ab7e71663 https://doi.org/10.1080/00150190211216 Zobrazit plný text záznamu