Initial Testing of a Prototype Laser Ignition Chamber

Abstract

A prototype laser ignition chamber was used to measure the pressure-time behavior of black powder ignited by a continuouswave laser (355 nm). The time to ignition of the black powder using the ultraviolet laser was significantly longer (seconds) than previous studies using near-infrared lasers (milliseconds). A linear relationship between the Mylar diaphragm thickness and the maximum peak pressure was observed. Differences in the behavior of the Mylar blowout disk based on the thicknesses of the individual sheets have also been observed.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2014
Accession Number
ADA598876

Entities

People

  • Chase A. Munson
  • Jennifer L Gottfried
  • Joe Colburn
  • Richard A. Beyer

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Combustion
  • Energetic Materials
  • Gunpowder
  • Ignition
  • Infrared Lasers
  • Laser Beams
  • Laser Ignition Systems
  • Lasers
  • Light (Electromagnetic Radiation)
  • Materials
  • Materials Laboratories
  • Optical Materials
  • Pressure Transducers
  • Propellants
  • Tensile Strength
  • Thickness
  • Ultraviolet Lasers

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Rocket Propulsion.

Technology Areas

  • Directed Energy