Hostname: page-component-54dcc4c588-2bdfx Total loading time: 0 Render date: 2025-10-06T17:14:08.319Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanism of Ca-Ba diffusion in lead-free (Ba,Ca)TiO3 piezoelectrics

Published online by Cambridge University Press:  02 July 2015

Chang Shu ,
Daniel Reed  and
Tim Button
Chang Shu
Affiliation:
School of Metallurgy and Materials, University of Birmingham, Birmingham, B15 2TT, UK
Daniel Reed
Affiliation:
School of Metallurgy and Materials, University of Birmingham, Birmingham, B15 2TT, UK
Tim Button
Affiliation:
School of Metallurgy and Materials, University of Birmingham, Birmingham, B15 2TT, UK Central European Institute of Technology (CEITEC), Brno 60200, Czech Republic
Get access

Abstract

The reaction mechanism of BaCO3+CaCO3+TiO2 by solid state methods has been studied in this work using thermal analysis (DSC-TG) from 500 to 1500 °C and in situ X-ray diffraction (XRD) from room temperature to 800 °C. In the mixed powders, the CaO is firstly formed followed by presence of an intermediate Ba2TiO4 phase and finally the formation of CaTiO3, BaTiO3 and/or (Ba,Ca)TiO3, where the presence of CaO or CaTiO3 (CT) has slowed down the formation of BaTiO3 (BT). Raman microscopy of a BT-CT diffusion couple has shown that Ca2+ firstly diffuses into the BT grain boundaries and then into the BT core.

Keywords

Raman spectroscopyx-ray diffraction (XRD)diffusion

Information

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1782: Symposium P – Nanogenerators and Piezotronics , 2015 , pp. 23 - 28
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Liu, W. and Ren, X., Phys. Rev. Lett. 103 (25), 257602 (2009).CrossRefGoogle Scholar
Fu, D., Itoh, M., Koshihara, S., Appl. Phys. Lett. 93, 012904 (2008).CrossRefGoogle Scholar
Puli, V.S., Pradhan, D.K., Riggs, B.C., Chrisey, D.B., Katiyar, R.S., J. Alloy. Compd. 584, 369–373 (2014).CrossRefGoogle Scholar
Beauger, A., Mutin, J.C., Niepce, J.C., J. Mater. Sci. 18, 3041 (1983).CrossRefGoogle Scholar
Beauger, A., Mutin, J.C., Niepce, J.C., J. Mater. Sci. 18, 3041 (1983).CrossRefGoogle Scholar
Rossel, M., Hoche, H.R., Leipner, H.S., Voltzke, D., Abicht, H.P., Hollricher, O., Muller, J., Gablenz, S., Anal. Bioanal. Chem. 380, 157–162 (2004).CrossRefGoogle Scholar
Tsuzuku, K. and Couzi, M., J. Mater. Sci. 47, 4481–4487 (2012).CrossRefGoogle Scholar
Berbenni, V., Marini, A., Bruni, G., Thermochimica. Acta. 374, 151–158 (2001).CrossRefGoogle Scholar
Luxova, J., Sulcova, P., Trojan, M., J. Therm. Anal. Calorim. 93, 823–827 (2008).CrossRefGoogle Scholar
Berbenni, V. and Marini, A., J. Mater. Res. 39, 5279–5282 (2004).Google Scholar
Shu, C., Reed, D., Button, T.W. (2015). A Phase Diagram of BCTO Piezoceramics by Raman Spectroscopy. Unpublished manuscript.Google Scholar