METHOD OF MANUFACTURING FINE PIEZOELECTRIC CERAMIC BALLS FOR PIEZOELECTRIC ELASTOMER

摘要

A method of manufacturing fine sintered piezoelectric ceramic balls to be mixed in an elastomer for the production of a pressure-sensitive piezoelectric elastomer. Calcined powder of a piezoelectric material, such as lead titanate zirconate, is mixed with a binder. The resultant mixture is then shaped into fine spherical particles, which are thereafter sintered. Such spherical particles can be obtained by passing the mixture referred to above through a screen and then vibrating the screened particles, or else by spraying a slurry of the mixture in a hot atmosphere.