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HomeMaterials Science ForumMaterials Science Forum Vol. 899The Role of Sintered Al2O3-Nb2O5 Front Plate on...

The Role of Sintered Al₂O₃-Nb₂O₅ Front Plate on the Ballistic Performance of Multilayered Armors

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Abstract:

The performance of multilayered armor systems (MAS), composed of a front Al₂O₃-Nb₂O₅ ceramic plate followed by either plies of aramid fabric layer or curaua fiber reinforced polyester matrix composite layer and backed by an aluminum alloy sheet, was assessed. Ballistic impact tests were performed with actual 7.62 caliber ammunitions. Indentation in a clay witness, simulating a personal body behind the back layer, attested the efficacy of the MAS as an armor component. The ballistic efficiency of the front ceramic dissipating more than 50% of the bullet impact energy was associated with its capacity of fragmentation. As for the remaining energy, the lighter and cheaper curaua fiber composites were found to present a significant advantage as a possible substitute for the usual aramid fabric intermediate layer in MAS for individual protection against high speed projectiles.

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Periodical:

Materials Science Forum (Volume 899)

Pages:

329-334

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.899.329

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Online since:

July 2017

Authors:

Sergio Neves Monteiro*, Andre Ben-Hur da Silva Figueiredo, Eduardo Sousa Lima, Ricardo Pondé Weber, Luis Henrique Leme Louro, Marco Aurélio de Jesus Matos, Lucio Fabio Cassiano Nascimento, Fabio de Oliveira Braga

Keywords:

Al₂O₃-Nb₂O₅ Front Ceramic, Aramid Fabric, Ballistic Test, Clay Witness Indentation, Composite, Curaua Fiber, Multilayered Armor

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