Rheological Properties and Stress Evolution during Drying of Tape-Cast Ceramics
J. A. Lewis,* C. Martinez, J. Smay
National Science Foundation, 94-53446

The origin of dimensional anisotropy and tape movement is studied using rheological techniques and in situ stress measurements. Rheological properties of tape casting suspensions are characterized to probe their relaxation behavior. Stress measurements based on a laser interferometry technique are carried out on tape-cast layers of varying thickness and composition. Our goal is to develop a fundamental understanding of property evolution during drying of these complex colloidal systems.