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Jo, Wook
Sustainable Functional Ceramics Lab.
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Acoustic emission study of domain wall motion and phase transition in (1-x-y)Bi0.5Na0.5TiO3-xBaTiO(3)-yK(0.5)Na(0.5)NbO(3) lead-free piezoceramics

Author(s)
Dul'kin, E.Mojaev, E.Roth, M.Jo, WookGranzow, T.
Issued Date
2009-02
DOI
10.1016/j.scriptamat.2008.10.014
URI
https://scholarworks.unist.ac.kr/handle/201301/7435
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=56249115525
Citation
SCRIPTA MATERIALIA, v.60, no.4, pp.251 - 253
Abstract
The ferroelectric strain hysteresis and acoustic emissions of lead-free (1 - x - y)Bi0.5Na0.5TiO3-xBaTiO3-yK0.5Na0.5NbO3 ceramics were investigated at room temperature. The field-induced antiferroelectric ↔ ferroelectric phase transition as well as the ferroelectric coercive field were successfully detected. Although the strain was largest for x = 0.06 and y = 0.02, this composition showed the lowest acoustic emission signals, making it an interesting material for ultrasonic transducer applications.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
ISSN
1359-6462

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