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Journal of Materials Science

, Volume 41, Issue 21, pp 7082–7087 | Cite as

Optimization of barium titanate nanopowder slip for tape casting

  • V. Vinothini
  • Paramanand Singh
  • M. Balasubramanian
Article

Abstract

Dispersion of barium titanate nano powder of average particle size ∼30 nm in different solvent systems of tape casting (toluene–ethanol, methyl ethyl ketone–ethanol, xylene–ethanol) along with Triton x-100 or phosphate ester as dispersants has been studied using sedimentation experiments. The influence of different parameters such as type of solvent system, dispersant and concentration of dispersant on BaTiO3 slip dispersion, viscosity and the properties of green tape were studied. The optimal concentration of dispersant was determined from the minimum slip viscosity. Xylene–ethanol with phosphate ester was found to be the best solvent and dispersant system for tape casting. Defect free, denser and smooth green tapes are formed with this system.

Keywords

BaTiO3 Barium Titanate Methyl Ethyl Ketone Phosphate Ester Methyl Ethyl Ketone 

References

  1. 1.
    Jaffe B, Cook WR Jr, Jaffe H (1971) In: Piezoelectric ceramics. Academic press, New YorkGoogle Scholar
  2. 2.
    Herbert JM (1985) In: Ceramic dielectrics and capacitors. Gordon and Breach Science Publishers, New YorkGoogle Scholar
  3. 3.
    Mei S, Yang J, Maria J, Ferreria F, Martins R (2002) Mater Sci Eng A 334:11CrossRefGoogle Scholar
  4. 4.
    Hellebrand H (1996) In: Cahn R, Hassen P, Kramer EJ (eds) Materials Science and Technology, vol 17A, Part 1. VCH, New YorkGoogle Scholar
  5. 5.
    Tseng JW, Lin CL (2003) Mater Chem Phy 80:232CrossRefGoogle Scholar
  6. 6.
    Mistler RE, Shanefield DJ, Runk RB (1978) In: Onoda GY Jr, Hench LL (eds) Ceramic processing before firing. John Wiley & Sons, New York, p 411Google Scholar
  7. 7.
    Feng JH, Dogan F (2000) J Am Ceram Soc 83:1681CrossRefGoogle Scholar
  8. 8.
    Parish M (1982) Dispersion studies of Barium titanate in organic liquids, Ceramic Processing Laboratory, Massachusetts Institute of TechnologyGoogle Scholar
  9. 9.
    Vinothini V, Singh P, Balasubramanian M (2006) Ceram Intl 32:99CrossRefGoogle Scholar
  10. 10.
    Reddy B, Singh P, Raghu Kumar V (2002) J Mater Sci 37:929CrossRefGoogle Scholar
  11. 11.
    Mikeska K, Cannon WR (1984) Adv Ceram 9:164Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • V. Vinothini
    • 1
  • Paramanand Singh
    • 2
  • M. Balasubramanian
    • 1
  1. 1.Composites Technology CentreIndian Institute of Technology – MadrasChennaiIndia
  2. 2.Department of Metallurgical & Materials EngineeringIndian Institute of Technology – MadrasChennaiIndia

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