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Characterization of relationship between particle size and powder properties for BaTiO3

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2005, 15(6), pp.244-251
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

전명표 1 Cho Jeong Ho 2 KIM BYUNG IK 2

1요업기술원
2한국세라믹기술원

Accredited

ABSTRACT

The relationship betwen particle size of hydro-thermally synthesized barium titanate powders (BT01, BT02,BT03, BT04, BT05) and the powder properties was investigated by means of particle size, specific surface area, zetapotential, XPS, XRD and SEM. Particle size determined by laser light scattering is closely related with specific surfaceincreasing particle size except BT03 powder. BT03 sample showed higher surface area than BT04 sample of equivalentparticle size, which was atributed mostly to the agglomeration of particles in terms of SEM image and XRD analysis.Zeta potential increased with increasing particle size with the exception of BT02 and BT03 which showed larger minusvalue of zeta potential in comparison with other BT powders. Zeta potential results of BT02 and BT03 are considered tobe related with the disolution of Ba2+ ion in these powers which was examined by XPS.

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