SPECTRAL EMISSIVITY AND ELECTRON EMISSION CONSTANTS OF THORIA CATHODES FORMED BY CATAPHORESIS,

Abstract

A method is described for forming thoria cathodes by electrochemical means, namely cataphoresis. In this method a thin layer of thoria is deposited over an underlying metal. A temperature scale is set up and the spectral emissivity is determined for this type of coating. Also, the electron emission constants were measured over a range of temperatures and it was found that these constants are different for d-c and pulsed emission. In addition, data are presented which set an upper limit to the resistivity of thoria as a function of temperature. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 12, 1947
Accession Number
AD0620580

Entities

People

  • T. E. Hanley

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Charged Particles
  • Electron Emission
  • Electrons
  • Elementary Fermions
  • Elementary Particles
  • Emission
  • Emissivity
  • Fermions
  • Leptons
  • Photoexcitation
  • Subatomic Particles

Readers

  • Powder metallurgy of Titanium alloys.
  • Spectroscopy.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene