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Structural and electrical properties investigations of Pb(Mg1/3Nb2/3)O3–PbTiO3–Pb(Fe1/2Nb1/2)O3ceramics

Authors
Journal
Scripta Materialia
1359-6462
Publisher
Elsevier
Publication Date
Volume
57
Issue
11
Identifiers
DOI: 10.1016/j.scriptamat.2007.08.010
Keywords
  • Ceramics
  • Microstructure
  • Dielectrics
  • Piezoelectricity

Abstract

The structural, dielectric, ferroelectric and piezoelectric properties of 0.59Pb(Mg 1/3Nb 2/3)O 3–0.31PbTiO 3–0.10Pb(Fe 1/2Nb 1/2)O 3 (0.59PMN–0.31PT–0.10PFN) ceramic have been investigated. The investigations show that its phase structure is near the morphotropic phase boundary, and excellent electrical properties are obtained with this composition. Compared with PMN–PT, studies also show that 10% PFN substitution results in (i) a decreased sintered temperature; (ii) an increased Curie temperature and peculiar relaxation behavior; and (iii) a low dielectric loss, which indicates that the novel ternary system deserves further exploration.

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