Single and Polycrystalline Transparent Ceramic Armor with Different Crystal Structure

Single and Polycrystalline Transparent Ceramic Armor with Different Crystal Structure

Contrary to the moderate ballistic advantage of Al2O3 ceramics over MgAl2O4 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 Al2O3...

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Veröffentlicht in:Journal of the American Ceramic Society 2013-09, Vol.96 (9), p.2718-2721
Hauptverfasser: Krell, Andreas, Strassburger, Elmar, Hutzler, Thomas, Klimke, Jens
Format: Artikel
Sprache:eng
Schlagworte:
Alumina
Aluminum oxide
Ceramics
Cleavage
Correlation
Correlation analysis
Crystal structure
Polycrystals
Sapphire
Single crystals
Spinel
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Beschreibung
Zusammenfassung:Contrary to the moderate ballistic advantage of Al2O3 ceramics over MgAl2O4 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 Al2O3 ceramics. The results correlate with different cleavage of single crystalline spinel and sapphire, changing the fragmentation on ballistic impact.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.12530