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AFM Studies of Fracture Surfaces of Composition B Energetic Materials

Published online by Cambridge University Press:  15 March 2011

Y. D. Lanzerotti  and
J. Sharma
Y. D. Lanzerotti
Affiliation:
U. S. Army ARDEC, Picatinny Arsenal, NJ 07806-5000
J. Sharma
Affiliation:
Naval Surface Warfare Center, Carderock Division, West Bethesda MD 20817-5700
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Abstract

The characteristics of TNT (trinitrotoluene) crystals in Composition B have been studied using atomic force microscopy (AFM). The size of TNT crystals has been examined by analyzing the surface structure that is exhibited after mechanical failure of the Composition B. The mechanical failure occurs when the material is subjected to high acceleration (high g)inan ultracentrifuge and. the shear or tensile strength is exceeded. AFM examination of the topography of the Composition B fracture surface reveals fracture across columnar grains of the TNT. The width of the columnar TNT grains ranges in size from ~ 1 μm to~2 μm. Their height ranges in size from ~ 50 nm to ~ 300 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 705: Symposium Y – Nanopatterning–From Ultralarge-Scale Integration to Biotechnology , 2001 , Y7.11
Copyright
Copyright © Materials Research Society 2002

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