Single and Polycrystalline Transparent Ceramic Armor with Different Crystal Structure | Zendy

Krell Andreas | Zendy; Strassburger Elmar | Zendy; Hutzler Thomas | Zendy; Klimke Jens | Zendy

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Single and Polycrystalline Transparent Ceramic Armor with Different Crystal Structure

Author(s) -

Krell Andreas,

Strassburger Elmar,

Hutzler Thomas,

Klimke Jens

Publication year - 2013

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.12530

Subject(s) - spinel , materials science , crystallite , sapphire , ceramic , single crystal , cleavage (geology) , composite material , mineralogy , crystallography , metallurgy , optics , fracture (geology) , chemistry , laser , physics

Contrary to the moderate ballistic advantage of Al 2 O 3 ceramics over MgAl 2 O 4 polycrystals, the present study shows a reverse ratio of the ballistic strength of alumina and spinel single crystals : Spinel single crystals outperform sapphire and exhibit a similarly high stability as submicrometer Al 2 O 3 ceramics. The results correlate with different cleavage of single crystalline spinel and sapphire, changing the fragmentation on ballistic impact.

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