PARTICLE DISINTEGRATION STUDY FOR RE-ENTERING NUCLEAR AUXILIARY POWER SYSTEMS

Abstract

The purpose of this study was to determine the chemical history and related physical phenomena of liquid Zr-U droplets in the presence of a flowing mixture of atmospheric gases at various partial pressures. A theoretical analysis of the aerodynamic and thermodynamic conditions affecting the droplets was carried out. Experimental investigation was conducted on the interaction of particles of 50- to 200-micron size with oxygen and nitrogen at different concentrations and total pressures. The results obtained indicate that the droplets undergo partial or complete oxidation or nitridation, depending on experimental conditions. Only when oxygen was present did the droplets disintegrate into submicron particles. The frequency and mode of disintegration depend on the total pressure, oxygen concentration, and particle size; however, specific variables should be further investigated in order to reach more quantitative and realistic conclusions.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1963
Accession Number
AD0414394

Entities

People

  • A. E. Levy-pascal
  • A. H. Malinovsky
  • L. E. Bell
  • R. R. Koppand

Organizations

  • Douglas

Tags

Communities of Interest

  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Cameras
  • Ceramic Materials
  • Chemical Products
  • Chemical Reactions
  • Combustion
  • Diffraction Analysis
  • Elements
  • Free Stream
  • Gas Flow
  • Measurement
  • Oxidation
  • Partial Pressure
  • Particle Size
  • Photographic Equipment
  • Photographs
  • Photography

Readers

  • Fluid Dynamics.
  • Molecular Photonics/Laser Physics
  • Powder metallurgy of Titanium alloys.