Tape casting of Y-TZP with low binder content

The rheology of Y-TZP slurries with a low content of an acrylic/styrene binder is studied. The optimum amount of dispersant was found to be 0.3 wt.% for the starting slurry. After a 5 wt.% of binder addition the dispersant amount needed to achieve a minimum viscosity increases to 0.5 wt.%. Tapes obtained from slurries with a solid content of 45 vol.% shows the higher green density of 51 th.%. Higher solid contents do not yield to better green densities due to the high viscosity.