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Raman and AFM piezoresponse study of dense BaTiO3 nanocrystalline ceramics
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2005 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, Vol. 25, no 12, 3059-3062 p.Article in journal (Refereed) Published
Abstract [en]

Dense nanocrystalline BaTiO3 (BT) ceramics with grain sizes (GSs) below 100 nm obtained by spark plasma sintering (SPS), were investigated by micro-Raman spectroscopy in order to obtain information about the changes in the local order induced by size effects. The obtained spectra in the range 80-700 K showed the presence of all the crystalline phases of BaTiO3, even in the finest structure (50 nm grain size ceramic), with particularities attributed to the high density of non-ferroelectric grain boundaries. The AFM piezoresponse study incontestably proved the ferroelectric switching at local scale in nanocrystalline BaTiO3 ceramics at room temperature.

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2005. Vol. 25, no 12, 3059-3062 p.
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URN: urn:nbn:se:kth:diva-89031DOI: 10.1016/j.jeurceramsoc.2005.03.190ISI: 000230569300223OAI: diva2:502649
QC 20120307Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-03-07Bibliographically approved

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Zhao, Zhe
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