Thermodynamics of High Temperature Materials.

Abstract

Heat capacity and electrical resistivity of graphite have been measured in the range of 2500 to 3600 K. Thermal expansion of tantalum has been measured in the range of 1500 to 3200 K. Radiance temperature (at 653 nm) of tungsten at its melting point has been determined. The enthalpy of graphite has been determined from 273 to 1173 K. The thermodynamic properties of diatomic molecules at elevated temperatures have been investigated and a formalism developed to include contributions from both the continuum states and the metastable states associated with rotational barriers. The determination of barriers to internal rotation for inorganic species has been reviewed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA114869

Entities

People

  • A. Cezairliyan
  • F. Mies
  • P. Julienne
  • S. Abramowitz

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Chemical Reactions
  • Dissociation
  • Ground State
  • Heat Capacity
  • Heat Energy
  • Heat Transfer
  • Kinetic Energy
  • Measurement
  • Quantum Mechanics
  • Quantum Numbers
  • Quantum Properties
  • Scattering
  • Spectra
  • Thermodynamic Properties
  • Thermodynamics
  • Thermophysical Properties

Fields of Study

  • Chemistry
  • Physics

Readers

  • Combustion science or combustion engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Surface Engineering/Surface Coating Technology.