Temperature dependence of field-responsive mechanisms in lead zirconate titanate
- North Carolina State Univ., Raleigh, NC (United States). Dept. of Materials Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Science Directorate
- Univ. of New South Wales, Sydney, NSW (Australia). Dept. of Materials Science and Engineering
- PI Ceramic GmbH, Lederhose (Germany)
An electric field loading stage was designed for use in a laboratory diffractometer that enables in situ investigations of the temperature dependence in the field response mechanisms of ferroelectric materials. The stage was demonstrated in this paper by measuring PbZr1-xTixO3 (PZT) based materials—a commercially available PZT and a 1% Nb-doped PbZr0.56Ti0.44O3 (PZT 56/44)—over a temperature range of 25°C to 250°C. The degree of non-180° domain alignment (η002) of the PZT as a function of temperature was quantified. η002 of the commercially available PZT increases exponentially with temperature, and was analyzed as a thermally activated process as described by the Arrhenius law. The activation energy for thermally activated domain wall depinning process in PZT was found to be 0.47 eV. Additionally, a field-induced rhombohedral to tetragonal phase transition was observed 5°C below the rhombohedral-tetragonal transition in PZT 56/44 ceramic. The field-induced tetragonal phase fraction was increased 41.8% after electrical cycling. Finally, a large amount of domain switching (η002=0.45 at 1.75 kV/mm) was observed in the induced tetragonal phase.
- Research Organization:
- North Carolina State University, Raleigh, NC (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF); State of North Carolina (United States)
- Contributing Organization:
- Univ. of New South Wales, Sydney, NSW (Australia); PI Ceramic GmbH, Lederhose (Germany)
- Grant/Contract Number:
- AC05-00OR22725; AC02-06CH11357; IIP-1361571; IIP-1361503; ECCS-1542015
- OSTI ID:
- 1376454
- Alternate ID(s):
- OSTI ID: 1378387
- Journal Information:
- Journal of the American Ceramic Society, Vol. 100, Issue 9; ISSN 0002-7820
- Publisher:
- American Ceramic SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Unexpectedly high piezoelectricity of Sm-doped lead zirconate titanate in the Curie point region
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journal | March 2018 |
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