High energy density piezoelectric ceramics for energy harvesting devices

In Tae Seo, Yu Joung Cha, In Young Kang, Jae Hong Choi, Sahn Nahm, Tae Hyun Seung, Jong Hoo Paik

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The ceramics, (0.65 + y)Pb(Zr0.47Ti0.53)-(0.35- y)Pb[(Ni1-xZnx)1/3Nb2/3]O 3 have a morphotropic phase boundary (MPB) of pseudo-cubic and tetragonal structures. Their ε33 T0 value considerably decreased on the pseudo-cubic side of the MPB composition, but the d33 and kp slowly decreased on both sides of the MPB. Therefore, the maximum transduction coefficient (d33 * g33) was obtained from the composition on the pseudo-cubic side of the MPB, because g33 is given by d3333 T. This result could be applied to other systems containing an MPB of pseudo-cubic and tetragonal structures. Furthermore, a d33 * g33 value of 20 056 × 10-15 m2/N, which is the highest value reported so far for polycrystalline ceramics, was obtained from the 0.68Pb(Zr0.47Ti0.53)O 3-0.32Pb(Ni0.6Zn0.4)1/3Nb 2/3O3 ceramic.

Original languageEnglish
Pages (from-to)3629-3631
Number of pages3
JournalJournal of the American Ceramic Society
Volume94
Issue number11
DOIs
Publication statusPublished - 2011 Nov 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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