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- Jo, Wook
- Sustainable Functional Ceramics Lab.
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Shift in Morphotropic Phase Boundary in La-Doped BiFeO3-PbTiO3 Piezoceramics
- Author(s)
- Leist, Thorsten, Jo, Wook, Comyn, Timothy, Bell, Andrew, Roedel, Juergen
- Issued Date
- 2009-12
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.48, no.12
- Abstract
- Polycrystalline BiFeO3-PbTiO3 (BF-PT) powders with mixed tetragonal and rhombohedral crystal structure (morphotropic phase boundary: MPB) were modified with lanthanum to provide a wide variation in tetragonal distortion. X-ray diffraction from both the powder and the corresponding bulk ceramic demonstrated that the MPB in the bulk is shifted from 1-5mol% towards the tetragonal PT as compared to the powder. This shift was correlated with the degree of tetragonal distortion as quantified by c/a ratio.
- Publisher
- JAPAN SOC APPLIED PHYSICS
- ISSN
- 0021-4922
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