The High Drive Properties of a New Composite Ceramic Piezoelectric Transducer Material.

Abstract

The properties under high drive conditions of disc specimens of whisker reinforced composite ceramics are compared with the similar properties of commercially available non-reinforced ceramics of the same general family. The ceramics are of the lead zirconate titanate type, with the whisker content of two grades of alpha alumina (sapphire) in five weight per cent amount. Observations are made of stress, strain, electric field, resonant frequency, modulus, and electrical impedance. It is found that the whisker reinforced materials exhibit good linearity of stress, strain, resonant frequency, and modulus at high drive when compared with commercial samples of the same family, which are often markedly nonlinear. The conclusion is drawn that specimens, even of 'soft' type ceramic, when whisker reinforced, are made 'hard' in many of their properties. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 28, 1970
Accession Number
AD0718387

Entities

People

  • William W. Lester

Tags

DTIC Thesaurus Topics

  • Advanced Materials
  • Ceramic Materials
  • Composite Materials
  • Electric Fields
  • Electrical Impedance
  • Engineered Materials
  • Frequency
  • Impedance
  • Lead Zirconate Titanates
  • Materials
  • Piezoelectric Transducers
  • Resonant Frequency
  • Structural Ceramics
  • Titanates
  • Transducers
  • Zirconates

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.