26. Formulation of Additives for Water-Based Tape Casting of Ceramics

  1. Edgar Lara-Curzio
  1. M. Guiotoku,
  2. P. Lemes,
  3. C. M. Gomes,
  4. C. A. Valente,
  5. A. P. N. Oliveira and
  6. D. Hotza

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291221.ch26

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

How to Cite

Guiotoku, M., Lemes, P., Gomes, C. M., Valente, C. A., Oliveira, A. P. N. and Hotza, D. (2008) Formulation of Additives for Water-Based Tape Casting of Ceramics, in Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2 (ed E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291221.ch26

Author Information

  1. Materials Science and Engineering Graduate Program (PGMAT) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC, Brazil

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982329

Online ISBN: 9780470291221

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Keywords:

  • scanning electron microscopy;
  • ceramic powder;
  • superconductors;
  • plasticizers;
  • viscosity of suspension

Summary

The effect of additives type and content on rheological properties of water-based suspensions for tape casting was investigated. An aqueous suspension of a ceramic powder (feldspar, K2O-Al2O3-6SiO2) was used. Sodium alginate, as a binder, poly(ethyleneglycol), as a plasticizer, and sodium poly(methylmetacrylate), as a dispersant, were added. Viscosity and sedimentation behavior were analyzed for aqueous suspensions as a function of additives. After casting and solvent evaporation, the green densities of the samples were measured. The microstructures of green and sintered samples were evaluated by scanning electron microscopy.