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Microcracking and discontinuous fast switching as acoustic emission sources in 8/65/35 and 9,5/65/35 PLZT relaxor ferroelectrics

Lupascu, Doru C. (2001):
Microcracking and discontinuous fast switching as acoustic emission sources in 8/65/35 and 9,5/65/35 PLZT relaxor ferroelectrics.
In: Journal of the European Ceramic Society, pp. 1429-1432, 21, (10-11), ISSN 0955-2219, [Online-Edition: http://dx.doi.org/10.1016/S0955-2219(01)00034-6],
[Article]

Abstract

Microcracking, discontinuous switching, crystallographic phase transformation, internal discharges or surface friction of the macroscopic sample may be acoustic emission (AE) sources in ferroelectric ceramics. To reduce the number of possible AE sources, AE measurements were performed on hot pressed pore free well polished rhombohedral lead-lanthanum-zirconate-titanate (PLZT). Microcracking is the only AE source in electrostrictive PLZT 9.5/65/35, while in ferroelectric PLZT 8/65/35 fast domain kinetics also contribute to the observed AE pattern. (C) 2001 Elsevier Science Ltd. All rights reserved.

Item Type: Article
Erschienen: 2001
Creators: Lupascu, Doru C.
Title: Microcracking and discontinuous fast switching as acoustic emission sources in 8/65/35 and 9,5/65/35 PLZT relaxor ferroelectrics
Language: English
Abstract:

Microcracking, discontinuous switching, crystallographic phase transformation, internal discharges or surface friction of the macroscopic sample may be acoustic emission (AE) sources in ferroelectric ceramics. To reduce the number of possible AE sources, AE measurements were performed on hot pressed pore free well polished rhombohedral lead-lanthanum-zirconate-titanate (PLZT). Microcracking is the only AE source in electrostrictive PLZT 9.5/65/35, while in ferroelectric PLZT 8/65/35 fast domain kinetics also contribute to the observed AE pattern. (C) 2001 Elsevier Science Ltd. All rights reserved.

Journal or Publication Title: Journal of the European Ceramic Society
Volume: 21
Number: 10-11
Uncontrolled Keywords: ZIRCONATE-TITANATE CERAMICS; failure analysis; ferroelectric properties; non-destructive evaluation; PLZT
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 14 Jul 2011 08:35
Official URL: http://dx.doi.org/10.1016/S0955-2219(01)00034-6
Identification Number: doi:10.1016/S0955-2219(01)00034-6
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