Microstructural characterization of TiB sub 2 armor targets

When a dense, long-rod, kinetic energy projectile strikes a suitably confined ceramic target composed of a metal/ceramic sandwich, it is possible to cause the penetrator material to flow laterally at the metal/ceramic interface. This causes the rod to dwell against the ceramic surface and penetratio...

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Bibliographic Details
Published in:Journal of materials science letters 2002-11, Vol.21 (21), p.1661-1666
Main Authors: Rodriguez, S, Munoz, V B, Esquivel, E V, Murr, L E, Rupert, N L
Format: Article
Language:English
Online Access:Get full text
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Summary:When a dense, long-rod, kinetic energy projectile strikes a suitably confined ceramic target composed of a metal/ceramic sandwich, it is possible to cause the penetrator material to flow laterally at the metal/ceramic interface. This causes the rod to dwell against the ceramic surface and penetration ceases. This phenomenon, referred to as interface defeat, was initiated by Hauver in 1986, at the U.S. Army Research Laboratory (ARL), and first published by Bless et al. in the open literature; closely followed by the classic work of Hauver et al. and Rapacki et al. In this investigation three interface-defeat-based target configurations containing TiB sub 2 disks were examined by optical microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). These TiB sub 2 ceramic inserts corresponded to an impacted, unprestressed disk, and prestressed disks with a single and a double impact respectively.
ISSN:0261-8028