Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Synthesis of Barium Titanate Spherical Particles by Sol-Gel Method

졸-겔 법에 의한 구형 미분체 Barium Titanate의 제조

  • Kim, Yong-Ryul (Department of Chemical Engineerign, Daejin University)
  • 김용렬 (대진대학교 공과대학 화학공학과)
  • Published : 2007.09.30
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Abstract

$BaTiO_3$ powders were prepared by sol-gel method from different concentration of KOH aqueous solution and Ba/Ti molar ratio. Particle shape, size and crystal structure of prepared $BaTiO_3$ powders were analyzed by SEM, XRD, and FT-IR. As the result of KOH concentration changing, spherical particles were obtained by condition more than 3 M and particle size decreased as concentration increasing. Different appearance showed between dried and sintered powders against changing of Ba/Ti molar ratio. In case of dried powders, the crystallinity decreased as molar ratio increasing. On the other hand, increased as molar ratio increasing in case of sintered powders.

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References

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