한국분말재료학회지 (Journal of Powder Materials)

  • 제19권4호
  • /
  • Pages.310-316
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  • 2012
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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고에너지 볼밀링된 BaCO3와 TiO2 혼합분말의 고상반응에 의한 나노결정 BaTiO3 분말 합성

Synthesis of Nanocrystalline BaTiO3 Powder by the Combination of High Energy Ball Milling of BaCO3-TiO2 Mixture and Solid-State Reaction

  • 류성수 (한국세라믹기술원 엔지니어링세라믹센터)
  • Ryu, Sung-Soo (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology)
  • 투고 : 2012.06.15
  • 심사 : 2012.08.17
  • 발행 : 2012.08.28
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초록

Nanocrystalline $BaTiO_3$ powder could be synthesized by solid-state reaction using the mixture which was prepared by a high energy milling process in a bead mill for $BaCO_3$ and nanocrystalline $TiO_2$ powders mixture. Effect of the milling time on the powder characteristic of the synthesized $BaTiO_3$ powder was investigated. Nanocrystalline $BaTiO_3$ with a particle size of 50 nm was obtained at $800^{\circ}C$. High tetragonal $BaTiO_3$ powder with a tetragonality(=c/a) of 1.009 and a specific surface area of $7.6m^2/g$ was acquired after heat-treatment at $950^{\circ}C$ for 2 h. High energy ball milling was effective in decreasing the reaction temperature and increasing the tetragonality.

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참고문헌

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피인용 문헌

  1. and Nanosized Graphite Powder Mixtures vol.20, pp.2, 2013, https://doi.org/10.4150/KPMI.2013.20.2.100