Accession Number:

ADA276550

Title:

Passive Vibration Damping Materials: Piezoelectric Ceramic Composites for Vibration Damping Applications

Descriptive Note:

Annual rept. 1 Feb 1993-31 Jan 1994

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK MATERIALS RESEARCH LAB

Personal Author(s):

Report Date:

1994-02-01

Pagination or Media Count:

36.0

Abstract:

The study to produce ultra-fine less than 50 micrometers in diameter lead zirconate titanate PZT ceramic fibers for passive damping application has been carried out under several aspects. Sol-gel chemistry was undertaken to produce stable spinnable sol, as well as high quality PZT fibers. Due to the extreme geometry of such fibers, special characterization and poling methods were established. Single fiber dielectric properties, polarization hysteresis, and mechanical properties have been measured. Several methods for applying optimum resistive coatings were also explored. The analytical model of passively damped polymer composites using resistively shunted piezoelectric fiber was further developed to predict the behavior of such composites.

Subject Categories:

  • Polymer Chemistry
  • Laminates and Composite Materials
  • Electricity and Magnetism
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE