8YSZ Tapes Produced by Aqueous Tape Casting

Abstract:

In the last years many efforts have been spent to develop colloidal processes that use water instead of organic solvents. The aim of this study was to develop aqueous tape casting systems to produce zirconia tapes. Different types of binder were tested. Rheological properties of the slurries were measured at room temperature. The slurries were cast on a PET carrier with/without a silicone-based coating. Interactions between the slurry and the polymeric substrate were evaluated. It was found that an acrylic binder is more appropriate for colloidal processing. The acrylic-based suspensions showed a pseudoplastic behavior and remained stable after hours. Tapes with thicknesses between 90 and 200 µm were produced. Optimized tapes showed smooth and homogeneous surfaces and adequate plasticity.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 752-757
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.752
• Online since: August 2012
• Authors: Verônica Moreno, J.L. Aguilar, Dachamir Hotza
• Keywords: Aqueous Tape Casting, Zirconia

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