INVESTIGATION OF THERMODYNAMIC PROPERTIES OF ROCKET COMBUSTION PRODUCTS.

Abstract

The work was concerned primarily with the development of a new mass spectrometric technique by which information on the neutral precursor(s) of a given ion species can be obtained. The experiment involves modulation of the molecular beam and phase sensitive detection of the ions produced by electron impact of the molecules in the neutral beam. A theoretical basis of this experimental method is discussed. Vaporization of BeO from rhenium cells was studied by means of the torsion effusion techniques. Total vapor pressures derived from these measurements are higher than have been inferred from mass spectrometric experiments. Mass spectrometric studies of appropriate vapor species produced in H2-BeO system under Knudsen conditions were carried out at temperatures up to 2426K. A tentative value for the heat of formation of BeOH(g) was evaluated to be -28.2 + or - 10 kcal/mole.

Document Details

Document Type
Technical Report
Publication Date
Sep 21, 1967
Accession Number
AD0822492

Entities

People

  • Fred Ju
  • Myron H. Boyer
  • Norman D. Potter
  • Y. Harry Inami

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Combustion
  • Combustion Products
  • Heat Energy
  • Heat Of Formation
  • Measurement
  • Molecular Beams
  • Standard Enthalpy Changes
  • Thermodynamic Properties
  • Transition Temperature
  • Vapor Pressure
  • Vapors

Fields of Study

  • Chemistry

Readers

  • Combustion science or combustion engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • AI & ML
  • Microelectronics