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Synthesis of Nano-Size BaTiO3 Powder by Hydrothermal Reaction Method

수열합성법을 이용한 BaTiO3 나노분말 합성

  • Shim, Young-Jae (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Choi, Gyoung-Jin (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University)
  • 심영재 (경상대학교 세라믹공학과) ;
  • 최경진 (경상대학교 세라믹공학과)
  • Received : 2015.08.12
  • Accepted : 2015.08.18
  • Published : 2015.09.01

Abstract

Nano-size $BaTiO_3$ powder was synthesized by relatively simple hydrothermal reaction method. Finely dispersed Ti hydroxide precursor was first precipitated using $Ti(SO_4)_2$ and NaOH solution by applying ultrasonic power and washed thoroughly to remove $SO_4{^{2-}}$ and $Na^+$ ion. Then hydrothermal reaction was done at $160^{\circ}C$ for 6 hrs using solution prepared by washed Ti hydroxide precursor slurry and $Ba(OH)_2{\cdot}8H_2O$ with Ti:Ba mole ratio of 1:1. 200 ~ 500 nm size and uniform size distributed $BaTiO_3$ powder was synthesized by relatively low temperature and simple process.

Acknowledgement

Supported by : 경상대학교

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