Abstract
An improved method for fabrication of a multiple-element piezoelectric transducer and the transducer produced thereby. A green precursor tape is produced by doctor-blade tape-casting of a slurry containing lead zirconate-titanate (PZT) powder. After drying, individual strips of the tape are stacked between flat plates of previously sintered PZT, and sintered to form PZT strips; Pb from the previously sintered PZT plates makes up any Pb lost from the surfaces of the tape strips during sintering. The PZT strips are stacked interposed by layers of a thermoplastic polymer, and heated to a temperature above the melting point of the polymer, forming a laminate block. This block is then sliced perpendicular to the plane of the layers, forming slabs of alternate PZT and polymer layers; the slabs are then sliced perpendicular to the first slicing planes, forming strips of alternating PZT and polymer material. Electrodes are then added to complete the transducer assembly.
Recommended Citation
L. J. Busse et al., "Method of Manufacture of Multiple-Element Piezoelectric Transducer," U.S. Patents, Nov 1994.
Department(s)
Materials Science and Engineering
Patent Application Number
US08/046,965
Patent Number
US5359760A
Document Type
Patent
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 1994 The Curators of the University of Missouri, All rights reserved.
Publication Date
01 Nov 1994
