Phase diagram and piezoelectric response of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution

Desheng Fu; Yuto Kamai; Naonori Sakamoto; Naoki Wakiya; Hisao Suzuki; Mitsuru Itoh

doi:10.1088/0953-8984/25/42/425901

Phase diagram and piezoelectric response of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution

Materials Science 2013-10-08 v1

Authors: Desheng Fu , Yuto Kamai , Naonori Sakamoto , Naoki Wakiya , Hisao Suzuki , Mitsuru Itoh

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Abstract

We report the phase diagram of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution. It is found that substitution of smaller Ca ions for Ba ions can slightly increase the cubic-tetragonal(T) para-ferroelectric phase transition temperature and strongly decrease the T-orthorhombic (O) and O-rhombohedral (R) transition. This unique ferroelectric phase evolution is attributed to Ca off-centering effects. More importantly, lowering of the T-O or O-R phase transitions allows us to prepare the piezoelectric ceramics with a strain response as high as S/E~800 pm/V (E=10 kV/cm) over a wide range of compositions with x~0.1 - 0. 18 at room temperature, which may be interesting for piezoelectric applications.

Keywords

phase diagram piezoelectric response solid solution ferroelectric phase transition ca off-centering strain response ceramics

Cite

@article{arxiv.1309.3860,
  title  = {Phase diagram and piezoelectric response of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution},
  author = {Desheng Fu and Yuto Kamai and Naonori Sakamoto and Naoki Wakiya and Hisao Suzuki and Mitsuru Itoh},
  journal= {arXiv preprint arXiv:1309.3860},
  year   = {2013}
}

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11 pages, 4 figures. J. Phys.: Conden. Matter., 2013

Phase diagram and piezoelectric response of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution

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