AQUEOUS TAPE CASTING OF ALUMINA SUBSTRATES

Alumina substrates were processed by aqueous tape casting. An aqueous slurry was prepared with a cellulosic binder. This binder was used to achieve slurries with a low viscosity and a shear thinning rheological behaviour. The influence of the organic phase on the properties of th e green tapes was studied The tensile strength increases, whereas the apparent density decreases, when the binder content increases. The ten sile strength decreases, whereas the apparent density increases, when the powder content in the suspension increases.