RESEARCH AND DEVELOPMENT ON ADVANCED GRAPHITE MATERIALS. VOLUME XXI. CARBON ARC IMAGE FURNACE STUDIES OF GRAPHITE,

Abstract

Measurements obtained using a carbon arc image furnace indicate that the spectral reflectance and emissivity of carbon and graphite samples in the visible region of the spectrum are strong ly dependent on surface finish, but are indepen dent of temperature to at least 3000 K, regard less of surface finish. Descrepancies with other measurements of emissivity are indicated to be caused by errors in the measurement of surface temperature, due to thermal gradients. Infor mation has been obtained with the carbon arc image furnace indicating that the thermal con ductivity of surface mateepends strongly on surface finish and is smaller than the con ductivity of substrate material. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1963
Accession Number
AD0426665

Entities

People

  • M.r. Null
  • W.w. Lozier

Organizations

  • IIT Research Institute

Tags

DTIC Thesaurus Topics

  • Advanced Materials
  • Emissivity
  • Engineered Materials
  • Finishes
  • Graphitic Materials
  • Isotherms
  • Materials
  • Measurement
  • Physical Properties
  • Plasmonic Materials
  • Reflectance
  • Spectra
  • Substrates
  • Surface Temperature
  • Temperature Gradients

Readers

  • Snow Cover Descriptors for Reptiles and Their Illustrations.
  • Spectroscopy.
  • Surface Engineering/Surface Coating Technology.