Structural, dielectric and electromechanical properties of Cr-doped PLZT close to the morphotropic phase boundary region
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Structural, dielectric and electromechanical properties of Cr-doped PLZT close to the morphotropic phase boundary region
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| Creator |
Shukla, A. K.
Agrawal, V. K. Das, I. M. L. Singh, Janardan Singh, D. P. Sood, K. N. |
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| Subject |
Crystallography
Physics |
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| Description |
Piezoelectric ceramic lead lanthanum zirconate titanate (PLZT), doped with Cr2O3 [Pb(Zr0.57Ti0.43)O-3 + 6 at% La + x mole% Cr2O3, x = 0, 0.05, 0.11, 0.16, 0.22, 0.54 and 1.08], has been prepared by the solid-state reaction method, and characterized by X-ray diffiractometry, scanning electron microscopy, vector impedance spectroscopy (VIS). The VIS studies reveal the donor-like role of Cr for x < 0.16 mole%, and acceptor-like role for higher doping concentrations. Maxima of coupling coefficient K-p, charge constants d(33), d(31), d(h) and dielectric constant epsilon(T)(33) are observed at x = 0.05 mole%, at which concentration Cr behaves as a donor. The average value of Poisson's ratio, a E, is found to be 0.34 +/- 0.01, with a slight decrease in values x > 0.16 mole%.
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| Publisher |
Taylor & Francis
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| Date |
2006-11-06
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2557/1/149.pdf
Shukla, A. K. and Agrawal, V. K. and Das, I. M. L. and Singh, Janardan and Singh, D. P. and Sood, K. N. (2006) Structural, dielectric and electromechanical properties of Cr-doped PLZT close to the morphotropic phase boundary region. Phase Transitions, 79. pp. 875-887. ISSN 0141-1594 |
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| Relation |
http://npl.csircentral.net/2557/
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