The Effect of Certain Additives on Critical Diameter and Combustion Rates of Mixtures of Aluminum with Gelled Water

Abstract

Critical diameter and combustion rate at atmospheric pressure, combustion rate vs. pressure in the 20-100 atm range, and completeness of oxidation of aluminum at pressures of up to 60-100 atm were determined for 50:50 Al:H2O) and stoichiometric Mg:H2O mixtures, with and without addition of 1-5% KF, NaF, LiF, AlF3 and NaOH. Graphs of the resulting data are presented. It is concluded that these additives increase Al + H2O ignitibility and decrease critical diameter, that NaF and KF have a greater effect on combustion rate than the others and that the improved ignition and combustion result from the action of boiling water solutions of NaF and KF in destruction of the oxide films.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 07, 1974
Accession Number
ADA000210

Entities

People

  • A. A. Shidlovskii
  • A. V. Vasilev
  • V. V. Gorbunov

Organizations

  • United States Army Foreign Science and Technology Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Alkali Metals
  • Barometric Pressure
  • Burning Rate
  • Chemical Reaction Properties
  • Combustion
  • Decomposition
  • Ignition
  • Measurement
  • Metals
  • Oxide Films
  • Oxides
  • Particle Size
  • Particles
  • Potassium
  • Sodium
  • Standards

Readers

  • Combustion science or combustion engineering.
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Rocket Propulsion.