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R-Curve Behavior of Pb(Mg1/3Nb2/3)O3-29 mol% PbTiO3 Single Crystals: The Effect of Crystallographic Orientation and Grain Structure

Webber, Kyle G. and Seo, Yo-Han and Lee, Ho-Yong and Aulbach, Emil and Jo, Wook and Rödel, Jürgen (2011):
R-Curve Behavior of Pb(Mg1/3Nb2/3)O3-29 mol% PbTiO3 Single Crystals: The Effect of Crystallographic Orientation and Grain Structure.
In: Journal of the American Ceramic Society, pp. 2728-2730, 94, (9), ISSN 00027820, [Online-Edition: http://dx.doi.org/10.1111/j.1551-2916.2011.04677.x],
[Article]

Abstract

The crack growth resistance behavior of single crystal and polycrystalline 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-29%PT) was determined with compact-tension specimens. Two different single crystal orientations were produced by the solid-state crystal growth technique (SSCG) and characterized, allowing for the direct comparison to polycrystalline material. Single crystal R-curve behavior was observed to be anisotropic, which is explained by the effects of ferroelasticity and stress-induced phase transformations on toughening. Results of the polycrystalline samples display comparable toughness to that observed in single crystal measurements.

Item Type: Article
Erschienen: 2011
Creators: Webber, Kyle G. and Seo, Yo-Han and Lee, Ho-Yong and Aulbach, Emil and Jo, Wook and Rödel, Jürgen
Title: R-Curve Behavior of Pb(Mg1/3Nb2/3)O3-29 mol% PbTiO3 Single Crystals: The Effect of Crystallographic Orientation and Grain Structure
Language: English
Abstract:

The crack growth resistance behavior of single crystal and polycrystalline 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-29%PT) was determined with compact-tension specimens. Two different single crystal orientations were produced by the solid-state crystal growth technique (SSCG) and characterized, allowing for the direct comparison to polycrystalline material. Single crystal R-curve behavior was observed to be anisotropic, which is explained by the effects of ferroelasticity and stress-induced phase transformations on toughening. Results of the polycrystalline samples display comparable toughness to that observed in single crystal measurements.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 94
Number: 9
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Elektromechanik von Oxiden
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
Date Deposited: 20 Sep 2011 13:10
Official URL: http://dx.doi.org/10.1111/j.1551-2916.2011.04677.x
Identification Number: doi:10.1111/j.1551-2916.2011.04677.x
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