Binder burnout and evolution of the mechanical strength of dry-pressed ceramics containing poly(vinyl alcohol)

This paper describes the effect of binder removal on the mechanical strength of alumina green samples. These products were prepared by uniaxial pressing of powders spray-dried with poly(vinyl alcohol) used as a binder. Change in mechanical strength of these compacts was studied during thermal debinding. The behaviour was investigated by means of thermogravimetry, DSC and FTIR spectroscopy.