Title:
MANUFACTURE OF COMPOSITE PIEZOELECTRIC MATERIAL FILM
Document Type and Number:
Japanese Patent JPH01112786
Kind Code:
A
Abstract:
PURPOSE:To make the thickness of a piezoelectric body film thin and improve a piezoelectric constant, by coating a mixture in a slurry state where a piezoelectric elastomer, a conductive ceramic powder and carbon black are dissolved or dispersed in an organic solvent on a substrate with a screen printing technique. CONSTITUTION:A mixture in a slurry state consisting of: a piezoelectric elastomer, a piezoelectric ceramic powder, carbon black 3.5-4.0pts.wt., and an organic solvent is coated in a film state to the prescribed thickness on a substrate with a technique of screen printing and its coating is finished by drying. In such a case, a zirconate titanate powder is used as the piezoelectric powder and it is desirable for its powder to have the average diameter 0.2-5mum of its particles and further, it is preferable that a piezoelectric plastomer uses polyvinylidenefluoride. In this way, having a large area, a composite piezoelectric body film is easily manufactured so that it may have a thin thickness and yet a high piezoelectric constant.
Inventors:
KURATA YASUYUKI
KURAMOTO MASAMICHI
KURAMOTO MASAMICHI
Application Number:
JP26938087A
Publication Date:
May 01, 1989
Filing Date:
October 27, 1987
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
B05D1/26; H01B3/00; H01L41/45; (IPC1-7): B05D1/26; H01B3/00; H01L41/22
Attorney, Agent or Firm:
Masatoshi Sato