Structural and Microwave Dielectric Properties of Sr(1-X/2)Na(X)Nb2O6 Ferroelectric Ceramics

Abstract

Strontium sodium niobate ceramics are prepared by solid state reaction method. The crystal structures of these ceramics are studied by X-ray powder diffraction method. These materials are found to crystallize in the tetragonal tungsten bronze type structure and the unit cell parameters are calculated. The microstructural features were studied using scanning electron microscope. The real and imaginary part of complex Permittivity of the sample is determined by cavity perturbation technique. It is observed that the real and imaginary part of complex Permittivity varies with frequency. The temperature coefficient of dielectric constant and resonant frequency is found to be very small.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2003
Accession Number
ADA429580

Entities

People

  • Anil Lonappan
  • Jaimon Yohannan
  • Joe Jacob
  • K. T. Mathew

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Climate Change
  • Crystal Structure
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Electron Microscopes
  • Electron Microscopy
  • Frequency
  • Materials
  • Microscopy
  • Microwaves
  • Physical Properties
  • Resonant Frequency
  • Resonators
  • Scanning Electron Microscopes
  • Scanning Electron Microscopy
  • Temperature Coefficients

Fields of Study

  • Materials science
  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics