Accession Number:

ADA056287

Title:

Ceramic Piezoelectric Transducers

Descriptive Note:

Annual summary rept. 1 Jan-31 Dec 1977

Corporate Author:

PENNSYLVANIA STATE UNIV STATE COLLEGE MATERIALS RESEARCH LAB

Personal Author(s):

• Cross, L. E.
• Biggers, J. V.
• Newnham, R. E.

Report Date:

1978-01-01

Pagination or Media Count:

158.0

Abstract:

A major part of the effort has been concerned with the development of new techniques for the fabrication of diphasic ceramic and ceramic plastic composites and with investigation of the manner in which local and macroscopic symmetry and phase interconnection connectivity controls the coupled elasto- electric piezoelectric and thermo-elasto-electric pyroelectric properties of the composite. Replicating a natural microstructure of desired connectivity, a new type of flexible ceramic elastometer composite has been developed which exhibits g sub 33 constants over an order of magnitude larger than PZT and has interesting potential for many passive voltage generation applications such as in hydrophones and towed arrays.

Descriptors:

• *PIEZOELECTRIC TRANSDUCERS
• ACOUSTIC ARRAYS
• BARIUM COMPOUNDS
• CERAMIC MATERIALS
• DIELECTRICS
• ELECTROSTRICTION
• FABRICATION
• FERROELECTRICITY
• FREE ENERGY
• HYDROPHONES
• NIOBATES
• PHASE STUDIES
• PYROELECTRICITY
• STRONTIUM COMPOUNDS
• ZIRCONIUM OXIDES

Subject Categories:

• Electrical and Electronic Equipment
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE