THE EXAMINATION OF ETCHED NIOBIUM AND NIOBIUM ALLOYS IN POLARIZED LIGHT.

Abstract

Although optically isotropic, niobium and the niobium alloys B66 and FS85 can be made to respond to polarized light by a suitable etching treatment. The etching technique and possible uses of the ensuing activity in polarized light are described. New evidence that the activity of such isotropic metals is due to the surface topography is presented. The surface structure and its crystallographic relation are discussed with particular reference to similar observations on fcc metals. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0700023

Entities

People

  • J. M. Trenouth
  • M. S. Grzedzielzki

Organizations

  • National Research Council Canada

Tags

DTIC Thesaurus Topics

  • Alloys
  • Elements
  • Group 5 Elements
  • Metals
  • Niobium
  • Niobium Alloys
  • Observation
  • Refractory Metals
  • Topography
  • Transition Metals

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.