Effect of reactive B–Ti powder morphology on its removal from a surface and ignition by electro-static discharge

Shomik Mukhopadhyay, Mirko Schoenitz, Edward L. Dreizin

Research output: Contribution to journalArticlepeer-review

Abstract

Blast-powder interaction forms an aerosol, which could ignite, affecting production and distribution of fallout products. Full-scale experiments are challenging. Electrostatic discharges (ESD) above powders placed in a cavity serve to generate lab-scale shocks and plasma. Spherical and irregular particles of Ti–B nanocomposites were lifted by ESD. More particles are lifted and ignited by ESD with a higher voltage and when electrodes were located closer to the cavity. Spherical powders were lifted more efficiently than irregular powders. Ignited spherical particles were brighter than irregular powders. Particles lifted nearly instantly traveled at ∼100 m/s. Particles lifted later moved at lower velocities.

Original languageEnglish (US)
Article number103766
JournalJournal of Electrostatics
Volume120
DOIs
StatePublished - Nov 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Keywords

  • Boron
  • Powder combustion
  • Reactive material
  • Shock wave
  • Spark plasma
  • Titanium

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