High Power Resonance Characteristics and Dielectric Properties of Co-substituted 0.92Pb(Zn1/3Nb2/3)O3–0.08PbTiO3 Single Crystal
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概要
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Crystals of Co-doped 0.92Pb(Zn1/3Nb2/3)O3–0.08PbTiO3 (PZNT) were grown by modified flux technique. The dielectric and piezoelectric properties were investigated for $\langle 001 \rangle$ oriented crystals. Under high power resonant drive, the mechanical quality factor ($Q_{\text{m}}$) and vibration velocity showed a considerable improvement, compared to the unmodified PZNT crystals. Unhysteretic unipolar strain–electric field response was obtained for field levels of 30-kV/cm with strain level of ${\sim}0.3$%. Co-doping resulted in the increment of electric field level required for rhombohedral to tetragonal phase transition. The curie temperature of Co-modified crystals was ${\sim}130$°C. The results obtained in this study indicate that Co imparts hardening effect in the PZNT crystal.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2003-02-15
著者
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Priya Shashank
International Center For Actuators And Transducers (icat) Materials Research Institute Pennsylvania
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Uchino Kenji
International Center For Actuators And Transducers (icat) Intercollege Materials Research Laboratory
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Uchino Kenji
International Center for Actuators and Transducers, Materials Research Institute, Pennsylvania State University, University Park, PA 16802, U.S.A.
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Priya Shashank
International Center for Actuators and Transducers, Materials Research Institute, Pennsylvania State University, University Park, PA 16802, U.S.A.
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