ULTRA-FINE PARTICLE SIZE FERROELECTRICS

Abstract

Dielectric films based on ultra-fine powders of high purity ferroelectric materials, of potential application in miniature capacitors are investigated. The program entails the preparation of homogeneously sized powders of titanate and niobate ferroelectrics in the range of 2 to 0.01 microns or less; physical and chemical characterization of the particles; and densification of the particles into bulk ceras and thin films which promise to exceed the following specifications: capacity of 2 microfarads/sq in, dielectric strengths of 90 v, capacitance stab lity of ! 20% from -40 to +120 C, insulation resistance of 500 megohm microfarads at room temperature, and dissipation factor of 0.015 at 1 Kc. The application of super-energy ball milling as a size reduction technique was promising. A rapid and direct electron microscope method was evolved to facilitate the examination of deflocculated particle shapes and sizes. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 15, 1962
Accession Number
AD0286289

Entities

People

  • Jules Magder

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Capacitance
  • Capacitors
  • Dielectric Films
  • Dielectric Strength
  • Dissipation
  • Dissipation Factor
  • Electron Microscopes
  • Ferroelectric Materials
  • Films
  • Materials
  • Microscopes
  • Particle Size
  • Particles
  • Thin Films

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Microelectronics