The Linear Pyrolysis of Ammonium Perchlorate by Convective Heating.

Abstract

A new technique for investigating the linear, surface pyrolysis of ammonium perchlorate (AP) is reported along with the results of extensive testing of pressed AP at 1 atm. ambient pressure. The technique involves both convective heating by an impinging jet from a gas rocket and also surface-temperature measurement by infrared spectraradiometry. An apparent activation energy of 22 kcal/mole is reported for AP with surface temperatures between 425 and 575C and with regression rates between 0.002 and 0.04 cm/sec. The overall pyrolysis mechanism is proposed to be rate-controlled, dissociative sublimation. The technique used and the results reported are the first such for AP which allow for consideration of partial pressures and heat fluxes at the pyrolyzing surface in addition to measurements of regression rates and surface temperatures during pyrolysis. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0727991

Entities

People

  • Richard B. Cole
  • Robert F. Mcalevy Iii

Organizations

  • Stevens Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Chemical Kinetics
  • Chemical Reactions
  • Combustion
  • Fluid Dynamics
  • Fluid Mechanics
  • Heat Energy
  • Heat Transfer
  • Latent Heat
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Phase Transformations
  • Pressure Distribution
  • Pressure Measurement

Readers

  • Combustion and Flow Dynamics.
  • Organic Chemistry
  • Thermal Physics or Thermal Science.