The Production of Metallic Flakes for Absorbing Microwaves

Abstract

An investigation was undertaken in order to provide a supply of metallic flakes made under controlled conditions for use in absorbent material for radio waves. Studies were made of size, shape, and structure of metal powders and of flakes as related to their absorptive properties. The results indicate that flake quality for use in absorbent materials is mostly dependent on the properties of the metal powders flaked. Impure carbonyl iron (grades E, TH, and SF) produced the best absorbing material, apparently because of small grain size or magnetic softness.

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Document Details

Document Type
Technical Report
Publication Date
Jun 29, 1949
Accession Number
AD1210718

Entities

People

  • George Sandoz

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Absorption
  • Advanced Materials
  • Engineered Materials
  • Grain Size
  • Materials
  • Powder Metals
  • Powders
  • Radio Waves

Readers

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