Microstructural Characterization of Ballistic Damage in Dry Pressed Alumina Ceramics
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H. Ş. Soykan
Abstract
Alumina ceramics are one of readily available and cost-effective materials for ceramic-based ballistic applications. As impact velocity is most important parameter in armor design, ceramic microstructures have key role for better understanding of the ballistic penetration. Dry pressed alumina tiles bonded to fiberglass laminate backings have been tested in the ballistic experiments for low and high impact velocities. The microstructural changes and damage mechanisms have been characterized by scanning electron microscopy (SEM). Radial and conical types of cracks have been observed in the alumina ceramics tested. The damage mechanisms have changed in accordance with the impact velocity
Kurzfassung
Aluminiumoxidkeramiken gehören zu den leicht erhältlichen und kostengünstigen Materialien für ballistische Anwendungen auf Keramikbasis. Da die Aufprallgeschwindigkeit der wichtigste Parameter beim Entwerfen von Panzerungen ist, ist die Mikrostruktur von Keramiken zum besseren Verständnis der Penetration von Geschossen von besonders großer Bedeutung. Bei den ballistischen Experimenten wurden trocken gepresste Aluminiumoxidkacheln, die mit einer Rückplatte aus Fieberglaslaminat verbunden waren, bei geringen und hohen Aufprallgeschwindigkeiten getestet. Dabei wurden die mikrostrukturellen Änderungen und Schadensmechanismen durch Rasterelektronenmikroskopie (REM) charakterisiert. In dem untersuchten Aluminiumoxid wurden radiale und konische Rissarten beobachtet. Die Schadensmechanismen veränderten sich entsprechend der Aufprallgeschwindigkeit.
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© 2007, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents/Inhalt
- Inhalt / Contents
- Technical Contributions/Fachbeiträge
- Wear/Friction Behaviour of FeB and FeB/h-BN Coatings Sprayed by Atmospheric Plasma Spraying
- Charactersation of the Materials and Coatings Microstructure Using FIB and Ar+-Ion Etching
- Microstructural Characterization of Ballistic Damage in Dry Pressed Alumina Ceramics
Artikel in diesem Heft
- Contents/Inhalt
- Inhalt / Contents
- Technical Contributions/Fachbeiträge
- Wear/Friction Behaviour of FeB and FeB/h-BN Coatings Sprayed by Atmospheric Plasma Spraying
- Charactersation of the Materials and Coatings Microstructure Using FIB and Ar+-Ion Etching
- Microstructural Characterization of Ballistic Damage in Dry Pressed Alumina Ceramics
