Effect of Ferroelectric Long-Range Order on the Unipolar and Bipolar Electric Fatigue in Bi1/2Na1/2TiO3-Based Lead-Free Piezoceramics
dc.contributor.author | Luo, Zhenhua | |
dc.contributor.author | Granzow, T. | |
dc.contributor.author | Glaum, J. | |
dc.contributor.author | Jo, W. | |
dc.contributor.author | Rodel, J. | |
dc.contributor.author | Hoffman, M. | |
dc.date.accessioned | 2017-01-30T12:01:29Z | |
dc.date.available | 2017-01-30T12:01:29Z | |
dc.date.created | 2014-11-19T01:13:31Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Luo, Z. and Granzow, T. and Glaum, J. and Jo, W. and Rodel, J. and Hoffman, M. 2011. Effect of Ferroelectric Long-Range Order on the Unipolar and Bipolar Electric Fatigue in Bi1/2Na1/2TiO3-Based Lead-Free Piezoceramics. Journal of the American Ceramic Society. 94 (11): pp. 3927-3933. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/17373 | |
dc.description.abstract |
The fatigue behavior of the lead-free piezoelectric Bi1/2Na1/2 TiO3–BaTiO3K0.5Na0.5NbO3 (BNT-BT-KNN) under bipolar and unipolar electrical loading is investigated. Special attention is paid to the effect of a decreasing ferroelectric order which was affected by an increase in KNN-content. It is found that,in mainly ferroelectric systems with low KNN-content, bipolar cycling leads to domain wall pinning and formation of microcracks, while in mainly non-ferroelectric systems with high KNN-content fatigue can be rationalized by the repeated fieldinduced phase transition occurring during each field cycle. Under unipolar load, fatigue in low-KNN systems is dominated by domain wall pinning and the formation of a space charge field. Only the latter effect is present in non-ferroelectric high-KNN systems, which fatigue to a smaller degree. | |
dc.publisher | Wiley-Blackwell Publishing, Inc. | |
dc.subject | KNN-content | |
dc.subject | unipolar | |
dc.subject | bipolar | |
dc.subject | lead-free piezoceramic | |
dc.subject | fatigue behavior | |
dc.title | Effect of Ferroelectric Long-Range Order on the Unipolar and Bipolar Electric Fatigue in Bi1/2Na1/2TiO3-Based Lead-Free Piezoceramics | |
dc.type | Journal Article | |
dcterms.source.volume | 94 | |
dcterms.source.number | 11 | |
dcterms.source.startPage | 3927 | |
dcterms.source.endPage | 3933 | |
dcterms.source.issn | 0002-7820 | |
dcterms.source.title | Journal of the American Ceramic Society | |
curtin.accessStatus | Fulltext not available |