ANNEALING EFFECTS ON MICROSTRUCTURE AND DIELECTRIC PROPERTIES OF HOT-PRESSED, ULTRAFINE GRAINED BATI03,

Abstract

Dense barium titanate bodies with a grain size of 0.05 micron have been prepared by hot-pressing high purity material at temperatures as low as 1475F. The dielectric properties of this material and also for samples which have been annealed to grow larger grains are reported. Data which show the variation in dielectric constant and temperature stability with increasing grain size from 0.05 micron to about 6 microns are included. The dielectric constant reaches a maximum at a grain size of about 1 micron. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1965
Accession Number
AD0622970

Entities

People

  • Annie M. Dunlap
  • Arthur E. Brown
  • R. J. Brandmayr

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Annealing
  • Barium
  • Barium Titanates
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Grain Size
  • Hot Pressing
  • Materials
  • Microstructure
  • Titanates
  • Ultrafines

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.