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Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics


Microstructure and Electrical Properties of (1-x)Bi(Li1/3Zr2/3)O-3-xPbTiO(3) Piezoelectric Ceramics

DC Field Value Language Chen, Jun ko Wang, Xiaowei ko Jo, Wook ko Roedel, Juergen ko 2014-10-20T08:49:33Z - 2014-10-20 ko 2010-06 -
dc.identifier.citation JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.93, no.6, pp.1692 - 1696 ko
dc.identifier.issn 0002-7820 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract A new type of BiMeO3-PbTiO3 was prepared by using Li1+ as part of the Me site cations. Several (1-x)Bi(Li,Me')O 3-xPbTiO3 compositions were prepared with Me' cations of a higher valence (Me'=Ti4+, Zr4+, Mn4+, Sn 4+, Nb5+, and Ta5+). (1-x)Bi(Li,Me')O 3-xPbTiO3 exhibits a low solubility of Bi(Li,Me')O 3 in PbTiO3. Although there are many possible compositions of (1-x)Bi(Li,Me')O3-xPbTiO3, no morphotropic phase boundary was found. After the initial screening, (1-x)Bi(Li1/3Zr 2/3)O3-xPbTiO3 was identified as the most promising material for actuator applications due to its relatively large solubility limit (x=0.7) and low lattice distortion (c/a=1.036). It was then chosen for systematical study with respect to structure, ferroelectric, and piezoelectric properties. In addition, La was further added to improve the piezoelectric properties of (1-x)Bi(Li1/3Zr2/3)O 3-xPbTiO3. The temperature dependence of 0.3Bi(Li 1/3Zr2/3)O3-0.7PbTiO3 and 0.3(Bi0.9La0.1)(Li1/3Zr2/3)O 3-0.7PbTiO3 was assessed by investigating the dielectric constant and large-signal d33. 0.3Bi(Li1/3Zr 2/3)O3-0.7PbTiO3 exhibits a dielectric constant with a low loss (0.025), ferroelectric properties (EC=5.9 kV/mm, Pr=20.8 μC/cm2, and Psat=25.9 μC/cm 2), piezoelectric coefficients (small-signal d33=78 pC/N and large-signal d33=106 pm/V), and Curie temperature (T C=290°C). La (10 mol%) substitution for Bi acts as a soft role with an enhanced d33 (98 pC/N) and reduced TC (215°C). ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher WILEY-BLACKWELL ko
dc.subject Dielectric constants ko
dc.subject Electrical property ko
dc.subject Ferroelectric property ko
dc.subject Large-signals ko
dc.subject Lattice distortions ko
dc.subject Low loss ko
dc.subject Morphotropic phase boundaries ko
dc.subject Piezoelectric coefficient ko
dc.subject Piezoelectric property ko
dc.subject Promising materials ko
dc.subject Small signal ko
dc.subject Solubility limits ko
dc.subject Temperature dependence ko
dc.title Microstructure and Electrical Properties of (1-x)Bi(Li1/3Zr2/3)O-3-xPbTiO(3) Piezoelectric Ceramics ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-77953117082 ko
dc.identifier.wosid 000278309100037 ko
dc.type.rims ART ko
dc.description.wostc 5 *
dc.description.scopustc 4 * 2015-05-06 * 2014-10-20 *
dc.identifier.doi 10.1111/j.1551-2916.2010.03625.x ko
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