Sb doping effects on the piezoelectric and ferroelectric characteristics of lead-free Na0.5K0.5Nb1-x SbxO 3 piezoelectric ceramics

I. Hao Chan, Chieh Tze Sun, Mau-phon Houng, Sheng-Yuan Chu

Research output: Contribution to journalReview article

33 Citations (Scopus)

Abstract

The piezoelectric, phase structure and ferroelectric properties of lead-free Na0.5K0.5Nb1-xSbxO 3 piezoelectric ceramics were systematically investigated. (Na 0.5K0.5)Nb1-xSbxO3 ceramics were synthesized using the conventional solid-state reaction method. The effect of B-site Sb5+ substitution for Nb5+ on the structural characteristics and piezoelectric properties of samples was determined. According to XRD patterns, the phase gradually changes from tetragonal to orthorhombic with increasing Sb content. At x = 0.03, the tetragonal and orthorhombic phases coexist and relatively high piezoelectric properties were obtained. The relatively high Qm value obtained after substitution with Sb5+ ions might be due to the increased electronegativity and decreased ionic radius at the morphotropic phase boundary (MPB) at x = 0.03. However, the Qm value decreases with further Sb addition. Relatively high piezoelectric properties at x = 0.03 of kp = 0.42, kt = 0.48, εr = 446, Qm = 143, tan δ = 2.3%, and density = 4.31 g/cm3, d33 = 123 pC/N, were obtained.

Original languageEnglish
Pages (from-to)2061-2068
Number of pages8
JournalCeramics International
Volume37
Issue number7
DOIs
Publication statusPublished - 2011 Sep 1

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Piezoelectric ceramics
Ferroelectric materials
Substitution reactions
Lead
Doping (additives)
Electronegativity
Phase boundaries
Phase structure
Solid state reactions
Ions

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

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title = "Sb doping effects on the piezoelectric and ferroelectric characteristics of lead-free Na0.5K0.5Nb1-x SbxO 3 piezoelectric ceramics",
abstract = "The piezoelectric, phase structure and ferroelectric properties of lead-free Na0.5K0.5Nb1-xSbxO 3 piezoelectric ceramics were systematically investigated. (Na 0.5K0.5)Nb1-xSbxO3 ceramics were synthesized using the conventional solid-state reaction method. The effect of B-site Sb5+ substitution for Nb5+ on the structural characteristics and piezoelectric properties of samples was determined. According to XRD patterns, the phase gradually changes from tetragonal to orthorhombic with increasing Sb content. At x = 0.03, the tetragonal and orthorhombic phases coexist and relatively high piezoelectric properties were obtained. The relatively high Qm value obtained after substitution with Sb5+ ions might be due to the increased electronegativity and decreased ionic radius at the morphotropic phase boundary (MPB) at x = 0.03. However, the Qm value decreases with further Sb addition. Relatively high piezoelectric properties at x = 0.03 of kp = 0.42, kt = 0.48, εr = 446, Qm = 143, tan δ = 2.3{\%}, and density = 4.31 g/cm3, d33 = 123 pC/N, were obtained.",
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Sb doping effects on the piezoelectric and ferroelectric characteristics of lead-free Na0.5K0.5Nb1-x SbxO 3 piezoelectric ceramics. / Chan, I. Hao; Sun, Chieh Tze; Houng, Mau-phon; Chu, Sheng-Yuan.

In: Ceramics International, Vol. 37, No. 7, 01.09.2011, p. 2061-2068.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Sb doping effects on the piezoelectric and ferroelectric characteristics of lead-free Na0.5K0.5Nb1-x SbxO 3 piezoelectric ceramics

AU - Chan, I. Hao

AU - Sun, Chieh Tze

AU - Houng, Mau-phon

AU - Chu, Sheng-Yuan

PY - 2011/9/1

Y1 - 2011/9/1

N2 - The piezoelectric, phase structure and ferroelectric properties of lead-free Na0.5K0.5Nb1-xSbxO 3 piezoelectric ceramics were systematically investigated. (Na 0.5K0.5)Nb1-xSbxO3 ceramics were synthesized using the conventional solid-state reaction method. The effect of B-site Sb5+ substitution for Nb5+ on the structural characteristics and piezoelectric properties of samples was determined. According to XRD patterns, the phase gradually changes from tetragonal to orthorhombic with increasing Sb content. At x = 0.03, the tetragonal and orthorhombic phases coexist and relatively high piezoelectric properties were obtained. The relatively high Qm value obtained after substitution with Sb5+ ions might be due to the increased electronegativity and decreased ionic radius at the morphotropic phase boundary (MPB) at x = 0.03. However, the Qm value decreases with further Sb addition. Relatively high piezoelectric properties at x = 0.03 of kp = 0.42, kt = 0.48, εr = 446, Qm = 143, tan δ = 2.3%, and density = 4.31 g/cm3, d33 = 123 pC/N, were obtained.

AB - The piezoelectric, phase structure and ferroelectric properties of lead-free Na0.5K0.5Nb1-xSbxO 3 piezoelectric ceramics were systematically investigated. (Na 0.5K0.5)Nb1-xSbxO3 ceramics were synthesized using the conventional solid-state reaction method. The effect of B-site Sb5+ substitution for Nb5+ on the structural characteristics and piezoelectric properties of samples was determined. According to XRD patterns, the phase gradually changes from tetragonal to orthorhombic with increasing Sb content. At x = 0.03, the tetragonal and orthorhombic phases coexist and relatively high piezoelectric properties were obtained. The relatively high Qm value obtained after substitution with Sb5+ ions might be due to the increased electronegativity and decreased ionic radius at the morphotropic phase boundary (MPB) at x = 0.03. However, the Qm value decreases with further Sb addition. Relatively high piezoelectric properties at x = 0.03 of kp = 0.42, kt = 0.48, εr = 446, Qm = 143, tan δ = 2.3%, and density = 4.31 g/cm3, d33 = 123 pC/N, were obtained.

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