Reactivity of Ti-B, Cr-S, and Mn-S powder systems during explosively-driven collapse

POSTER

Abstract

Metal-metal and metal-sulfur reactive powder mixtures have been previously tested for initiation of reaction via planar, normal-shock loading. In addition to reacting under shock, such powder mixtures may undergo exothermic reaction under other types of mechanical loading. The thick-walled cylinder (TWC) technique was performed on samples of Ti-B (1:2 molar ratio), Cr-S (1.15:1 molar ratio), and Mn-S (1:1 molar ratio). These experiments were performed to determine the effect of large shear strains exerted on reactive metal powder mixtures and to establish the relative effectiveness of shear loading in comparison to shock loading in initiating reaction. Recovered samples were analyzed via SEM and XRD to determine the degree of reaction.

*Funding was provided in part by ONR MURI N00014-07-1-0740 (Program Officer Dr. Clifford Bedford)

Authors

  • Matthew Serge

    • McGill University
    • McGill University, Mechanical Engineering Dept., 817 Sherbrooke St. W., Montreal, Quebec, H3A 2K6, Canada

  • Atefeh Nabavi

    • McGill University

  • Po-Hsun Chiu

    • University of California, San Diego

  • Andrew Higgins

    • McGill University
    • McGill University, Mechanical Engineering Dept., 817 Sherbrooke St. W., Montreal, Quebec, H3A 2K6, Canada
    • McGill University, Department of Mechanical Engineering, Montr\'eal, QC, H3A 0C3, Canada

  • Vitali Nesterenko

    • University of California, San Diego