Abstract
Slurry formulations and processing parameters of the water-based tape casting of ceramic powders are reviewed. Additives include binders, like cellulose ethers, vinyl or acrylic-type polymers; plasticizers, like glycols; and dispersants, like ammonium salts of poly(acrylic acids). Mostly alumina powders have been employed. Hydrophobing of ceramic powders permits the aqueous processing even of water-reactive powders, like aluminium nitride. Non-toxicity and non-inflammability of water-based systems represent an alternative to organic solvent-based ones. Aqueous slurries are, on the other hand, complex multiphase systems, very sensitive to process variations. Statistical design of experiments was used for the improvement of the process.
Published Version
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