High Strain, 001> Textured 0.675Pb(Mg1/3Nb2/3)O3-0.325PbTiO3 Ceramics: Templated Grain Growth and Piezoelectric Properties

Autor:	Gary L. Messing, Seongtae Kwon, Edward M. Sabolsky, Susan Trolier-McKinstry
Rok vydání:	2005
Předmět:	Materials science Magnesium Mineralogy Sintering chemistry.chemical_element Piezoelectricity Titanate High strain Grain growth chemistry visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Crystallite Ceramic Composite material
Zdroj:	Journal of the American Ceramic Society. 88:312-317
ISSN:	1551-2916 0002-7820
Popis:	Lead magnesium niobate–lead titanate, 0.675Pb(Mg1/3Nb2/3)O3–0.325PbTiO3 (PMN–32.5PT) ceramics were textured (grain-oriented) in the 〈001〉-crystallographic direction by the templated grain growth process. The textured PMN–32.5PT ceramics were produced by orienting {001}-SrTiO3 (ST) platelets (∼10 μm in diameter and ∼2-μm thickness) in a submicron PMN–32.5PT matrix. The templated growth of 〈001〉-oriented PMN–32.5PT grains on the ST platelets resulted in textured ceramics with ∼70% Lotgering factor and >98% theoretical density. Unlike most lead-based ceramics, excess PbO was not needed for sintering or grain growth. Based on unipolar stain-field measurements at 0.2 Hz, the textured samples displayed >0.3% strain at 50 kV/cm. Low-field d33-coefficients of >1600 pC/N (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::059305731fc0cfa1d6bddc11d20bce95 https://doi.org/10.1111/j.1551-2916.2005.00057.x Zobrazit plný text záznamu