(Na0.52K0.44Li0.04)Nb 0.9-xSbxTa0.1O3 lead-free piezoelectric ceramics with high performance and high curie temperature

Juan Du, Jin Feng Wang, Guo Zhong Zang, Peng Qi, Shu Jun Zhang, Thomas R. Shrout

Research output: Contribution to journalArticle

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Abstract

(Na0.52K0.44Li0.04)Nb0.9-xSbxTa0.1O 3 lead-free piezoelectric ceramics are prepared by a solid-state reaction method. With increasing Sb content, the transition temperature from orthorhombic to tetragonal polymorphic phase decreased. A composition (Na 0.52K0.44Li0.04)Nb0.863Sb 0.037Ta0.1O3 is found to possess excellent piezo-electric and electromechanical performances (d33 = 306 pC/N, kp = 48%, and kt = 50%), and high Curie temperature (TC = 320°C). These results indicate that (Na 0.52K0.44Li0.04)Nb0.863Sb 0.037Ta0.1O3 is a promising lead-free piezoceramics replacement for lead zirconate titanate.

Original languageEnglish (US)
Pages (from-to)1446-1448
Number of pages3
JournalChinese Physics Letters
Volume25
Issue number4
DOIs
StatePublished - Apr 1 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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