Accession Number:

AD0689383

Title:

AMMONIUM PERCHLORATE LINEAR PYROLYSIS BY CONVECTIVE SURFACE HEATING

Descriptive Note:

Technical rept.

Corporate Author:

STEVENS INST OF TECH HOBOKEN NJ DEPT OF MECHANICAL ENGINEERING

Report Date:

1969-06-01

Pagination or Media Count:

16.0

Abstract:

Ammonium perchlorate AP specimens were exposed to various levels of convective surface heating at one atmosphere ambient pressure. Surface regression rates were measured and, simultaneously, surface temperatures were determined by measuring the infrared emission near 3.1 microns. These data represent the first AP linear-pyrolysis characteristics obtained by means of convective surface heating. Previously, linear pyrolysis was obtained by pressing specimens against heated plates solid and porous and heated wire meshes. The subject data agree with some, and disagree with other, of these previous data. The usefulness of convective surface heating and radiometric techniques are evaluated. It is demonstrated that preliminary experiments are required to support their use in linear pyrolysis studies. According to the evaluation, previous radiometric work dealing with surface decomposition is open to substantial question. It is concluded that the subject techniques are viable and offer experimental compliments to other methods, but that none of the current techniques are without substantial shortcomings. Means of incorporation of AP linear pyrolysis results into theoretical models of the propellant deflagration process are discussed.

Subject Categories:

  • Combustion and Ignition
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE