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Controlling Material Reactivity Using Architecture.

Kyle T Sullivan1, Cheng Zhu1, Eric B Duoss1

  • 1Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.

Advanced Materials (Deerfield Beach, Fla.)
|December 17, 2015
PubMed
Summary
This summary is machine-generated.

3D printing creates reactive material architectures that control flame speed. Researchers can tailor these structures, like channels and hurdles, to precisely manage energy release in composite materials.

Keywords:
3D printingadvanced manufacturingarchitected designreactive materialsthermites

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Area of Science:

  • Materials Science
  • Combustion Science
  • Additive Manufacturing

Background:

  • Reactive materials are crucial for various applications, but controlling their energy release rate is challenging.
  • Traditional methods for controlling reactivity often lack precision and flexibility.

Purpose of the Study:

  • To investigate the use of 3D-printed architectures for controlling the flame propagation velocity in reactive materials.
  • To explore how geometric parameters of 3D-printed structures influence reactivity.
  • To demonstrate a novel method for tailoring the energy release rate of composite materials.

Main Methods:

  • Utilized 3D-printing techniques to fabricate distinct reactive material architectures, specifically channels and hurdles.
  • Deposited thin films of thermite onto the surfaces of these 3D-printed structures.
  • Measured and analyzed the flame propagation velocity across different architectures.

Main Results:

  • Observed that specific geometric parameters of the 3D-printed architectures significantly influence flame propagation velocity.
  • Demonstrated that the architecture of the reactive material provides a direct means to control reactivity.
  • Successfully controlled the energy release rate by manipulating the printed structures.

Conclusions:

  • 3D-printed architectures offer a powerful and tunable platform for managing combustion in reactive materials.
  • The geometry of reactive material structures is a key factor in controlling flame propagation and energy release.
  • This approach provides an additional, on-demand route to control the performance of reactive composite materials.