Title of article
Raman and AFM piezoresponse study of dense BaTiO3 nanocrystalline ceramics
Author/Authors
Buscaglia، نويسنده , , V. and Buscaglia، نويسنده , , M.T. and Viviani، نويسنده , , M. and Ostapchuk، نويسنده , , T. and Gregora، نويسنده , , I. and Petzelt، نويسنده , , J. and Mitoseriu، نويسنده , , L. and Nanni، نويسنده , , P. and Testino، نويسنده , , A. and Calderone، نويسنده , , R. and Harnagea، نويسنده , , C. and Zhao، نويسنده , , Z. and Nygren، نويسنده , , M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
4
From page
3059
To page
3062
Abstract
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.
Keywords
grain size , spark plasma sintering , Ferroelectric properties , BaTiO3
Journal title
Journal of the European Ceramic Society
Serial Year
2005
Journal title
Journal of the European Ceramic Society
Record number
1407858
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