Accession Number:

ADA009768

Title:

Low Electrical Field Characteristics of Piezoelectric Ceramic Rings, Part II.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

24.0

Abstract:

Low electrical field parameters of Type I piezoelectric ceramic rings purchased from four major suppliers of sonar ceramic elements were measured to determine the applicability and value of MIL-STD-1376SHIPS, Piezoelectric Ceramic for Sonar Transducers. Data are also presented on two recently developed low-aging compositions. Measured values of the relative dielectric constant, loss tangent, electromechanical coupling factor, frequency constant, mechanical Q sub m, elastic compliance coefficient, and piezoelectric constants at low electrical fields and as functions of temperature 0 to 50C and aging are presented. The samples of Type I ceramic showed some improvement toward satisfying all the specifications of MIL-STD-1376SHIPS over those previously measured. The low-aging compositions are characterized as a function of temperature and are shown to be similar to the Type I composition.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE