Preparation and characterization of textured Bi0.5(Na0.8 K0.2)0.5TiO3 ceramics by reactive templated grain growth

Wei Zhao, Heping Zhou, Yongke Yan

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Bi0.5(Na0.8 K0.2)0.5TiO3 (abbreviated as BNKT) piezoelectric ceramics with extensive <001> texture were prepared by the reactive templated grain growth (RTGG), using plate-like Bi4Ti3O12 (BiT) particles as the templates. Through the analysis of X-ray diffraction pattern of the obtained materials, extensive crystallographic texture was evaluated with a relatively high Lotgering factor (f ≥ 0.9), and the incorporated (Bi0.5 K0.5)TiO3 diffused into the (Bi0.5Na0.5)TiO3 lattice to form a single solid solution. The scanning electron microscopy showed that the in-situ reaction started at the vicinity of BiT surface and proceeded with heat treatment time toward the inner part of the BiT. The high textured BNKT piezoelectric ceramics demonstrated good piezoelectric performance without decreasing the depolarization temperature when they were sintered at 1200 °C for 10 h.

Original languageEnglish (US)
Pages (from-to)1219-1222
Number of pages4
JournalMaterials Letters
Volume62
Issue number8-9
DOIs
StatePublished - Mar 31 2008

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Piezoelectric ceramics
piezoelectric ceramics
Grain growth
textures
Textures
ceramics
preparation
Depolarization
depolarization
Diffraction patterns
Solid solutions
heat treatment
solid solutions
diffraction patterns
templates
Heat treatment
X ray diffraction
Scanning electron microscopy
scanning electron microscopy
x rays

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "Preparation and characterization of textured Bi0.5(Na0.8 K0.2)0.5TiO3 ceramics by reactive templated grain growth",
abstract = "Bi0.5(Na0.8 K0.2)0.5TiO3 (abbreviated as BNKT) piezoelectric ceramics with extensive <001> texture were prepared by the reactive templated grain growth (RTGG), using plate-like Bi4Ti3O12 (BiT) particles as the templates. Through the analysis of X-ray diffraction pattern of the obtained materials, extensive crystallographic texture was evaluated with a relatively high Lotgering factor (f ≥ 0.9), and the incorporated (Bi0.5 K0.5)TiO3 diffused into the (Bi0.5Na0.5)TiO3 lattice to form a single solid solution. The scanning electron microscopy showed that the in-situ reaction started at the vicinity of BiT surface and proceeded with heat treatment time toward the inner part of the BiT. The high textured BNKT piezoelectric ceramics demonstrated good piezoelectric performance without decreasing the depolarization temperature when they were sintered at 1200 °C for 10 h.",
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Preparation and characterization of textured Bi0.5(Na0.8 K0.2)0.5TiO3 ceramics by reactive templated grain growth. / Zhao, Wei; Zhou, Heping; Yan, Yongke.

In: Materials Letters, Vol. 62, No. 8-9, 31.03.2008, p. 1219-1222.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Zhao, Wei

AU - Zhou, Heping

AU - Yan, Yongke

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AB - Bi0.5(Na0.8 K0.2)0.5TiO3 (abbreviated as BNKT) piezoelectric ceramics with extensive <001> texture were prepared by the reactive templated grain growth (RTGG), using plate-like Bi4Ti3O12 (BiT) particles as the templates. Through the analysis of X-ray diffraction pattern of the obtained materials, extensive crystallographic texture was evaluated with a relatively high Lotgering factor (f ≥ 0.9), and the incorporated (Bi0.5 K0.5)TiO3 diffused into the (Bi0.5Na0.5)TiO3 lattice to form a single solid solution. The scanning electron microscopy showed that the in-situ reaction started at the vicinity of BiT surface and proceeded with heat treatment time toward the inner part of the BiT. The high textured BNKT piezoelectric ceramics demonstrated good piezoelectric performance without decreasing the depolarization temperature when they were sintered at 1200 °C for 10 h.

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