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Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

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

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Title
R-Curve Behavior of Pb(Mg1/3Nb2/3)O-3-29 mol% PbTiO3 Single Crystals: The Effect of Crystallographic Orientation and Grain Structure
Author
Webber, Kyle G.Seo, Yo-HanLee, Ho-YongAulbach, EmilJo, WookRoedel, Juergen
Keywords
Compact tension; Crack-growth resistance; Crystallographic orientations; Ferroelasticity; Polycrystalline; Polycrystalline samples; R-curve behavior; Solid-state crystals; Stress induced phase transformations
Issue Date
2011-09
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.94, no.9, pp.2728 - 2730
Abstract
The crack growth resistance behavior of single crystal and polycrystalline 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) (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.
URI
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DOI
10.1111/j.1551-2916.2011.04677.x
ISSN
0002-7820
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MSE_Journal Papers
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