Microstructural characterization of TiB2 armor targets

The ballistic resistance of a particular ceramic to long-rod penetration of a metal/ceramic target (phenomenon known as "interface defeat") is not unique and largely depends on the nature of ceramic confinement and target configuration. Three interface defeat-based target configurations co...

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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
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Technical ceramics
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Summary:The ballistic resistance of a particular ceramic to long-rod penetration of a metal/ceramic target (phenomenon known as "interface defeat") is not unique and largely depends on the nature of ceramic confinement and target configuration. Three interface defeat-based target configurations containing TiB2 discs cut from CERCOM armour-grade tiles, corresponding to an impacted, unprestressed disc, and prestressed discs with a single and a double impact, respectively, were examined by OM, SEM and TEM. Penetration (occurring by severe comminution/fracture and radial cracking) was seen for unprestressed single impact and prestressed double impact conditions, but not for the prestressed, single impact condition. Prestressing retarded fracture and comminution, but dislocation-induced ductility in the prestressed double impact disc is undesirable for penetrator dwell and interface defeat. 14 refs.
ISSN:0261-8028
DOI:10.1023/A:1020868524652