Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis and characterization of potassium titanate whisker by flux method

융제법을 이용한 티탄산칼륨 휘스커의 합성과 특성

  • Choi, Yeon-Bin (Department of Advanced Materials Science and Engineering, Changwon National University) ;
  • Son, Jeong-hun (Department of Advanced Materials Science and Engineering, Changwon National University) ;
  • Bae, Dong Sik (Department of Advanced Materials Science and Engineering, Changwon National University)
  • 최연빈 (창원대학교 신소재공학과) ;
  • 손정훈 (창원대학교 신소재공학과) ;
  • 배동식 (창원대학교 신소재공학과)
  • Received : 2016.06.09
  • Accepted : 2016.07.22
  • Published : 2016.08.31
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Abstract

Method for synthesizing a $K_2Ti_6O_{13}$ whisker is a solid-state method, hydrothermal synthesis method, calcination method, flux method, slow-cooling method, melting method, kneading-drying-calcination method, sol-gel method etc. $K_2Ti_6O_{13}$ whisker have been synthesized by a flux method. The average size and distribution of the synthesized $K_2Ti_6O_{13}$ whisker can be controlled by a kind of potassium precursors and reaction temperature and time. The average size of the synthesized $K_2Ti_6O_{13}$ whisker was about in the size range of 500 nm to $2{\mu}m$. The effect of synthesis parameters, such as the molar ratio of KOH to $TiO_2$, pH, reaction temperature and time, are discussed. The synthesized $K_2Ti_6O_{13}$ whisker were characterized by x-ray diffraction analysis (XRD), field emission scanning electron microscopy (FE-SEM).

$K_2Ti_6O_{13}$ 휘스커를 합성하는 방법은 고상법, 수열합성법, 소성법, 융제법, 서냉법, 용융법, KDC법, 졸-겔법 등이 있다. 융제법을 이용하여 $K_2Ti_6O_{13}$을 합성하는 연구를 진행하였다. 칼륨 전구체의 종류와 반응온도와 시간을 조절하여 합성 된 $K_2Ti_6O_{13}$의 입자크기와 분포를 제어하였고, 합성된 $K_2Ti_6O_{13}$의 평균입자 크기는 $500nm{\sim}2{\mu}m$였다. KOH와 $TiO_2$의 비율, pH(KOH 첨가량), 반응온도와 반응시간 등의 공정변수에 대해 연구를 진행하였다. 합성된 $K_2Ti_6O_{13}$은 X-선 회절분석기와 전계방사 주사전자현미경을 이용하여 특성평가를 실시하였다.

Keywords

References

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