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Updated: Aug 5, 2026
09:50
Preparation and Reactivity of Gasless Nanostructured Energetic Materials
Published on: April 2, 2015
Indirect ignition of energetic materials with laser-driven flyer plates
Applied Optics
|February 4, 2017
Summary
Laser-driven flyer plates impact energetic materials like CL-20, PETN, and TATB. Light emission post-impact is from ejected energetic material decomposition, not flyer impact itself.
Area of Science:
- Materials Science
- Chemical Engineering
- Physics
Background:
- Investigates laser-driven flyer plate impacts on energetic materials (CL-20, PETN, TATB).
- Utilizes 25 μm aluminum flyer plates accelerated by Nd:YAG laser pulses up to 1.3 km/s.
Purpose of the Study:
- To understand the impact dynamics and response of energetic materials to high-velocity flyer plates.
- To determine the source of light emission observed during energetic material impact events.
Main Methods:
- Flyer plate velocity measurement using VISAR, time-of-flight, and high-speed video.
- Energetic material response analysis via infrared photodiode light emission.
- Schlieren imaging to visualize flyer plate launch and ejected material.
Main Results:
- Confirmed that light emission originates from the decomposition of energetic material ejected during flyer plate launch.
- Schlieren imaging revealed hot gases and particles ejected around the flyer plate launch site.
- Observed burning of ejected energetic material particles.
Conclusions:
- The light observed is a byproduct of the energetic material's interaction with the plasma and ejected hot products during flyer launch.
- This finding clarifies the mechanism of light emission in laser-driven energetic material impact experiments.
- Provides insights into the behavior of energetic materials under rapid acceleration and shock conditions.
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