한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제50권3호
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  • Pages.201-205
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  • 2013
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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상압 공정을 이용한 침상형 5Mg(OH)2·MgSO4·3H2O 합성에 대한 MgSO4/MgO 효과

Effect of MgSO4/MgO on the Synthesis of 5Mg(OH)2·MgSO4·3H2O Whiskers using One-step Ambient Pressure

  • 유리 (한국세라믹기술원 엔지니어링세라믹센터) ;
  • 피재환 (한국세라믹기술원 도자기술센터) ;
  • 김형태 (한국세라믹기술원 엔지니어링세라믹센터) ;
  • 김유진 (한국세라믹기술원 엔지니어링세라믹센터)
  • Yu, Ri (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Pee, Jae-Hwan (Ceramicware Technology Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Hyung Tae (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, YooJin (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 투고 : 2013.05.07
  • 심사 : 2013.05.28
  • 발행 : 2013.05.31
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초록

Magnesium hydroxide sulfate hydrate ($5Mg(OH)_2.MgSO_4{\cdot}3H_2O$, abbreviated 513 MHSH) whiskers were synthesized using MgO and $MgSO_4.7H_2O$ as reactants without addition of basic solution. Previously, MHSH whiskers were prepared by hydrothermal method using $MgSO_4$ in aqueous ammonia. In this work, for the first time, we synthesized a high purity MHSH via ambient pressure. In addition, a high molar ratio of $MgSO_4$ : MgO is an important key to the formation of high purity MHSH. Also, it was possible to prepare whiskers with high aspect ratio using an increasing reaction time in the reaction between the remaining $SO_4^{2-}$ ions and the ${Mg(OH)_6}^{4-}$ fragment, finally producing one-dimensional whiskers.

키워드

참고문헌

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