A New Technique for the Determination of Heats of Sublimation of Slightly Volatile Substances,

Abstract

A technique is described which enables one to measure relative vapor pressures by measuring the rate of change of transmissivity of thin deposits as they are formed by condensation from the vapor. From the temperature dependence of this rate the heat of sublimation of slightly volatile substances can be determined. In the case of graphite, deposits of the order of 0.1 microgram per sq cm can be detected.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 28, 1948
Accession Number
ADA319935

Entities

People

  • O. C. Simpson
  • R. J. Thorn

Organizations

  • Oak Ridge National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Coefficients
  • Equations
  • Heat Energy
  • Heat Of Sublimation
  • Heat Of Vaporization
  • High Temperature
  • Materials
  • Measurement
  • Optical Pyrometers
  • Pressure Measurement
  • Sublimation
  • Temperature Gradients
  • Vapor Pressure
  • Vaporization
  • Vapors
  • Wien'S Law

Readers

  • Analytical Chemistry
  • Thermal Physics or Thermal Science.
  • Thin Film Deposition Science.