Chapter 40. Processing Aluminum Oxide\Titanium Diboride Composites for Penetration Resistance
- Mrityunjay Singh and
- Todd Jessen
Published Online: 26 MAR 2008
Copyright © 2001 The American Ceramic Society
25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3
How to Cite
Gilde, G., Adams, J.W., Burkins, M., Motyka, M., Patel, P.J., Chin, E., Prokurat Franks, L., Sutaria, M. and Rigali, M.J. (2001) Processing Aluminum Oxide\Titanium Diboride Composites for Penetration Resistance, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch40
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 2001
Print ISBN: 9780470375730
Online ISBN: 9780470294680
During the past ten years research on aluminum oxide\titanium diboride (Al2O3\TiB2) composites focused on exploiting their potential as a low cost armor ceramic. Limited ballistic data demonstrated that the microstructure has a dramatic effect on ballistic performance against long rod penetrators. With the “preferred” microstructure, the penetration resistance of Al2O3\TiB2 approached that of monolithic TiB2 ceramics. Challenges were encountered both in quantifying the microstructure and fabricating the desired microstructure. Against a steel 7.62mm armor piercing round no microstructural effect was observed.
Ongoing research at the Army Research Laboratory (ARL) has focused on microstructure control during fabrication and correlation of microstructure with mechanical properties and penetration resistance of the composite. Composites have been made from mixed Al2O3 and TiB2 powders, as well as a composite Al2O3\TiB2 powder prepared via a self-propagating synthesis (SHS) reaction. Microstructural characterization, flexure strength, fracture toughness, elastic moduli and recent ballistic results will be reported.