IMPACT SHOCK ON PIEZOELECTRIC CERAMICS

Abstract

Life expectancy tests performed on ceramic rings of compositions EC- 55, EC-64, EC-65 and EC-69 have resulted in extensive data regarding the effects of impact shocks on the physical and electrical characteristics of the ceramic rings. The results have indicated that the dissipation and the mechanical Q of the ceramic were the parameters most affected by impact shocks. The dielectric constant was the only electrical characteristic that remained stable under impact shock. Ceramic rings of composition EC-65 were able to withstand higher and more impact shocks than rings of the other three compositions. The results on composition EC-69 indicated that this composition has the lowest mechanical strength with respect to impact shock. The results obtained from life expectancy tests performed on ceramic discs and rings were in agreement regarding the effects of impact shock on their electrical characteristics. The mechanical strength of the ceramic ring configuration was better than that of the ceramic disc configuration. This was true for all four ceramic compositions studied.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1967
Accession Number
AD0651100

Entities

People

  • Colin W. Skinner
  • Richard C. Lowrie
  • William T. Kiyota

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Abstracts
  • Dielectric Permittivity
  • Electrical Measurement
  • Electrical Properties
  • Explosive Charges
  • Explosives
  • Frequency
  • Frequency Response
  • Glass Fibers
  • Impact Shock
  • Lead Titanates
  • Materials
  • Measurement
  • Military Research
  • Physical Properties
  • Resonant Frequency
  • Thermal Expansion

Fields of Study

  • Materials science

Readers

  • Marine Ecological Systems Migration
  • Reinforced Composite Materials
  • Structural Dynamics.