Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Characterization of Surface Properties of $BaTiO_3$ Powder by XPS

  • Chun, Myoung-Pyo (Advanced Materials & Component Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Cho, Jung-Ho (Advanced Materials & Component Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Kim, Byung-Ik (Advanced Materials & Component Team, Korea Institute of Ceramic Eng. & Tech.)
  • Published : 2006.09.24
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Abstract

The effects of particle size on the surface properties of hydro-thermally synthesized barium titanate powders were investigated by means of particle size analysis, specific surface area, SEM, zeta potential and XPS. Particle sizes were measured by laser light scattering and are in the range of 150 to 1100nm. Zeta potential increased with increasing particle size and it was large minus value in the range of particle size from 500 to 900nm, which seems to be related with the dissolution of $Ba^{2+}$ ion in these particle sizes from the analysis of surface properties by XPS.

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