FIELD EMISSION STUDIES OF THE SURFACE CONSTANTS OF REFRACTORY METALS.

Abstract

The activation energy for surface migration, the surface tension, and the diffusivity constant for surface motion were measured, using field emission techniques, for tungsten (bcc) and rhenium (hcp). The values for tungsten agree well with results reported by other investigators. Similar work on rhenium was not reported previously. Investigations are continuing on other metals with face centered cubic and hexagonal close packed crystal structure. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1965
Accession Number
AD0620679

Entities

People

  • Philip C. Bettler

Organizations

  • University of Nevada, Reno

Tags

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Diffusivity
  • Emission
  • Energy
  • Field Emission
  • Heat Of Activation
  • Metals
  • Migration
  • Refractory Metals
  • Surface Tension
  • Tungsten

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.