Grain growth and crystallinity of ultrafine barium titanate particles prepared by various routes

C. Y. Su, Y. Otsuka, Chi-Yuen Huang, D. F. Hennings, C. Pithan, F. T. Shiao, R. Waser

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Variations in tetragonal distortion and the degree of crystallinity of ultrafine BaTiO 3 particles - both industrially applied criteria qualifying their polar characteristics - upon growth during annealing were studied on powders, prepared by the hydrothermal synthesis and by the oxalate route respectively. Regardless of the synthetic route both these properties were found to develop approximately to the same extent with increasing primary particle size. The degree of crystallinity was detectable only above a critical value of c/a=1.007 at an average particle size of around 120 nm. Intragranular porosity in hydrothermal powders and the stoichiometric Ba/Ti-ratio are of minor influence. However, distinct differences in particle growth behavior for both powders were observed. This discrepancy is ascribed to a special morphology of the hydrothermal product, where enhanced particle growth was found to be governed by oriented attachment of individual crystallites and by the motion of solid-solid interfaces.

Original languageEnglish
Pages (from-to)6673-6680
Number of pages8
JournalCeramics International
Volume39
Issue number6
DOIs
Publication statusPublished - 2013 Aug 1

Fingerprint

Barium titanate
Grain growth
Powders
Particle size
Oxalates
Hydrothermal synthesis
Crystallites
Porosity
Annealing
Ultrafine

All Science Journal Classification (ASJC) codes

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

Cite this

Su, C. Y. ; Otsuka, Y. ; Huang, Chi-Yuen ; Hennings, D. F. ; Pithan, C. ; Shiao, F. T. ; Waser, R. / Grain growth and crystallinity of ultrafine barium titanate particles prepared by various routes. In: Ceramics International. 2013 ; Vol. 39, No. 6. pp. 6673-6680.
@article{949cdf17ae4646d2b6ea3245b74e2838,
title = "Grain growth and crystallinity of ultrafine barium titanate particles prepared by various routes",
abstract = "Variations in tetragonal distortion and the degree of crystallinity of ultrafine BaTiO 3 particles - both industrially applied criteria qualifying their polar characteristics - upon growth during annealing were studied on powders, prepared by the hydrothermal synthesis and by the oxalate route respectively. Regardless of the synthetic route both these properties were found to develop approximately to the same extent with increasing primary particle size. The degree of crystallinity was detectable only above a critical value of c/a=1.007 at an average particle size of around 120 nm. Intragranular porosity in hydrothermal powders and the stoichiometric Ba/Ti-ratio are of minor influence. However, distinct differences in particle growth behavior for both powders were observed. This discrepancy is ascribed to a special morphology of the hydrothermal product, where enhanced particle growth was found to be governed by oriented attachment of individual crystallites and by the motion of solid-solid interfaces.",
author = "Su, {C. Y.} and Y. Otsuka and Chi-Yuen Huang and Hennings, {D. F.} and C. Pithan and Shiao, {F. T.} and R. Waser",
year = "2013",
month = "8",
day = "1",
doi = "10.1016/j.ceramint.2013.01.105",
language = "English",
volume = "39",
pages = "6673--6680",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "6",

}

Grain growth and crystallinity of ultrafine barium titanate particles prepared by various routes. / Su, C. Y.; Otsuka, Y.; Huang, Chi-Yuen; Hennings, D. F.; Pithan, C.; Shiao, F. T.; Waser, R.

In: Ceramics International, Vol. 39, No. 6, 01.08.2013, p. 6673-6680.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Grain growth and crystallinity of ultrafine barium titanate particles prepared by various routes

AU - Su, C. Y.

AU - Otsuka, Y.

AU - Huang, Chi-Yuen

AU - Hennings, D. F.

AU - Pithan, C.

AU - Shiao, F. T.

AU - Waser, R.

PY - 2013/8/1

Y1 - 2013/8/1

N2 - Variations in tetragonal distortion and the degree of crystallinity of ultrafine BaTiO 3 particles - both industrially applied criteria qualifying their polar characteristics - upon growth during annealing were studied on powders, prepared by the hydrothermal synthesis and by the oxalate route respectively. Regardless of the synthetic route both these properties were found to develop approximately to the same extent with increasing primary particle size. The degree of crystallinity was detectable only above a critical value of c/a=1.007 at an average particle size of around 120 nm. Intragranular porosity in hydrothermal powders and the stoichiometric Ba/Ti-ratio are of minor influence. However, distinct differences in particle growth behavior for both powders were observed. This discrepancy is ascribed to a special morphology of the hydrothermal product, where enhanced particle growth was found to be governed by oriented attachment of individual crystallites and by the motion of solid-solid interfaces.

AB - Variations in tetragonal distortion and the degree of crystallinity of ultrafine BaTiO 3 particles - both industrially applied criteria qualifying their polar characteristics - upon growth during annealing were studied on powders, prepared by the hydrothermal synthesis and by the oxalate route respectively. Regardless of the synthetic route both these properties were found to develop approximately to the same extent with increasing primary particle size. The degree of crystallinity was detectable only above a critical value of c/a=1.007 at an average particle size of around 120 nm. Intragranular porosity in hydrothermal powders and the stoichiometric Ba/Ti-ratio are of minor influence. However, distinct differences in particle growth behavior for both powders were observed. This discrepancy is ascribed to a special morphology of the hydrothermal product, where enhanced particle growth was found to be governed by oriented attachment of individual crystallites and by the motion of solid-solid interfaces.

UR - http://www.scopus.com/inward/record.url?scp=84877717312&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877717312&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2013.01.105

DO - 10.1016/j.ceramint.2013.01.105

M3 - Article

VL - 39

SP - 6673

EP - 6680

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 6

ER -