Concepts for energy absorption and dissipation in ceramic armor

Dong Kyu Kim, Jonathan Bell, Dechang Jia, Waltraud M. Kriven, Victor Kelsey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As possible new ceramic armor materials, different kinds of composites having potential different energy absorption mechanisms were fabricated and their ballistic performances were qualitatively tested under unconstrained conditions. A 50 vol% dicalcium silicate (2CaO·SiO2, or "C2S") - 50 vol% calcium zirconate (CaO·ZrO 2, or "CZ") composite, a 25 vol% Al2O 3 - 25 vol% NiAl2O4 - 25 vol% TiC - 25 vol% ZrO2 quadruplex composite, a similar nano grain-sized, four-phase (quadruplex) composite of the same composition, and a 50 vol% Al 2O3 coated - 50 vol% TiB2 platelet composite were fabricated by hot pressing. A multilayer, carbon fiber-reinforced, nanoporous, geopolymer composite of approximate composition (K 2O·Al2O3·4SiO2· 12H2O) was also fabricated as a possible light-weight armor material. The quadruplex composite hot pressed at 1600°C for 1 h at the pressure of 68 MPa in the Ar atmosphere had nearly a full density and possessed hardness, 3-point bend strength and toughness values of 1251 Kg/mm2, 984 MPa and 4.74 MPa·m1/2, respectively. The results of qualitative ballistic performance testing indicated that the four-phase composite, nano-sized quadruplex composite, and 50 vol% Al2O3 coated - 50 vol% TiB2 platelet composite had ballistic performances comparable to that of standard Al2O3.

Original languageEnglish (US)
Title of host publicationAdvances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites
Pages57-70
Number of pages14
Edition5
StatePublished - 2008
Event31st International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: Jan 21 2007Jan 26 2007

Publication series

NameCeramic Engineering and Science Proceedings
Number5
Volume28
ISSN (Print)0196-6219

Other

Other31st International Conference on Advanced Ceramics and Composites
Country/TerritoryUnited States
CityDaytona Beach, FL
Period1/21/071/26/07

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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