Shock-induced localized amorphization in boron carbide

Mingwei Chen, James W. McCauley, Kevin J. Hemker

    Research output: Contribution to journalArticlepeer-review

    379 Citations (Scopus)

    Abstract

    High-resolution electron microscope observations of shock-loaded boron carbide have revealed the formation of nanoscale intragranular amorphous bands that occur parallel to specific crystallographic planes and contiguously with apparent cleaved fracture surfaces. This damage mechanism explains the measured, but not previously understood, decrease in the ballistic performance of boron carbide at high impact rates and pressures. The formation of these amorphous bands is also an example of how shock loading can result in the synthesis of novel structures and materials with substantially altered properties.

    Original languageEnglish
    Pages (from-to)1563-1566
    Number of pages4
    JournalScience
    Volume299
    Issue number5612
    DOIs
    Publication statusPublished - 2003 Mar 7

    ASJC Scopus subject areas

    • General

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