Effect of Microstructure on the Ballistic Performance of Alumina

  • W. J. Ferguson
  • R. W. Rice
Conference paper
Part of the Materials Science Research book series (MSR, volume 5)


Results of a study of various dense Al2O3 bodies using a 22-caliber fragment simulator are presented showing that there is no significant correlation of ballistic performance with static tensile strength, surface finishes or single crystal orientations. In poly crystalline alumina a limited reduction in performance occurred with increasing grain size and a larger reduction was associated with certain impurities. The effect of impurities depends on their state and thus on methods of addition and thermal histories. Results are discussed in terms of possible microplasticity.


Flexural Strength Ballistic Performance Areal Density Commercial Alumina Ballistic Limit 
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    R. W. Rice, “Strength-Grain Size Effects in Ceramics” submitted for publication in the Proceedings of the British Ceramic Society.Google Scholar
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    R. W. Rice, p. 195, this volume.Google Scholar
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    H. Palmour III, C. H. Kim, D. R. Johnson, C. E. Zimmer, “Fractographic and Thermal Analysis of Shocked Alumina”, Tech. Rept. No. 69-5 for Office of Naval Research, Contract No. N00014-68-A-0187, NR 064 - 504, April 1969.Google Scholar
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    J. J. Gilman, J. Appl. Phys. 41 (4) 1664–66 (1970).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • W. J. Ferguson
    • 1
  • R. W. Rice
    • 1
  1. 1.Naval Research LaboratoryUSA

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