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Piezoelectric Property and Strain Behavior of Pb(Yb0.5Nb0.5)O3PbHfO3PbTiO3 Polycrystalline Ceramics

Authors

  • Hua Tang,

    1. Electronic Materials Research Lab., Key Lab. of the Ministry of Education, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, China
    2. Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania
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  • Shujun Zhang,

    Corresponding author
    1. Electronic Materials Research Lab., Key Lab. of the Ministry of Education, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, China
    2. Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania
    • Author to whom correspondence should be addressed. e-mail: soz1@psu.edu

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  • Yujun Feng,

    1. Electronic Materials Research Lab., Key Lab. of the Ministry of Education, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, China
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  • Fei Li,

    1. Electronic Materials Research Lab., Key Lab. of the Ministry of Education, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, China
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  • Thomas R. Shrout

    1. Electronic Materials Research Lab., Key Lab. of the Ministry of Education, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, China
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Abstract

(1−x)Pb(Hf1−yTiy)O3xPb(Yb0.5Nb0.5)O3 (= 0.10–0.44, = 0.55–0.80) ceramics were fabricated. The morphotropic phase boundary (MPB) of the ternary system was determined by X-ray powder diffraction. The optimum dielectric and piezoelectric properties were achieved in 0.8Pb(Hf0.4Ti0.6)O3–0.2Pb(Yb0.5Nb0.5)O3 ceramics with MPB composition, where the dielectric permittivity εr, piezoelectric coefficient d33, planar electromechanical coupling kp, and Curie temperature Tc were found to be on the order of 1930,480 pC/N, 62%, and 360°C, respectively. The unipolar strain behavior was evaluated as a function of applied electric field up to 50 kV/cm to investigate the strain nonlinearity and domain wall motion under large drive field, where the high field piezoelectric d33* was found to be 620 pm/V for 0.82Pb(Hf0.4Ti0.6)O3–0.18Pb(Yb0.5Nb0.5)O3. In addition, Rayleigh analysis was carried out to study the extrinsic contribution, where the value was found to be in the range 2%–18%.

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