SPECTRAL EMITTANCE OF NEODYMIUM, SAMARIUM, ERBIUM AND YTTERBIUM OXIDES AT HIGH TEMPERATURES

Abstract

Spectral emittance of solid specimens of Er2O3, Yb2O3, Sm2O3 and Nd2O3 was obtained by comparison of sample emission with the emission of a standard black body cavity maintained at the same sample true temperature. The spectral emittance has been characterized in a wavelength range of 0.4 - 5.0 micrometer and at sample temperatures from 1520K up to 1870K corresponding to surface radiation flux densities of 10 - 50 W/sq cm. This flux density range is of practical interest for thermophotovoltaic energy conversion applications. Preliminary observations of spectral transmittance and reflectance are also reported.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0708547

Entities

People

  • Guido E. Guazzoni
  • Stuart J. Shapiro

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Birds
  • Conversion
  • Emission
  • Energy
  • Energy Conversion
  • Equations
  • Flux Density
  • Instrumentation
  • Materials
  • Measurement
  • Measuring Instruments
  • Radiation
  • Reflectance
  • Spectra
  • Spectral Emittance
  • Standards
  • Transmittance

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.