Mechanical and Thermal Properties of Advanced Ceramics for Gun Barrel Applications

Report No. ARL-TR-3417
Authors: Jeffrey J. Swab, Andrew A. Wereszczak, Jason Tice, Russ Caspe, Reuben H. Kraft, and Jane W. Adams
Date/Pages: February 2005; 92 pages
Abstract: Eight commercially available ceramic materials were procured and evaluated for potential application as gun barrel liners. These materials included an alumina, zirconia, and SiAlON, as well as three silicon carbides and two silicon nitrides. Preliminary evaluation determined the strength, fracture toughness, Vickers hardness, thermal conductivity, specific heat, and linear coefficient of thermal expansion. An uncensored Weibull analysis was performed on all of the strength data. These databases were developed for use in the probabilistic modeling and design efforts of the program to predict performance, identify optimum gun barrel designs, and to rank and down select ceramics for further evaluation.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2005