Utilizing Stabilized ZrO2 In Armor Applications | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 93, Volume 14, 14th International Conference on Applied Mechanics and Mechanical Engineering., May 2010, Pages 1-1 PDF (122.78 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2010.38236 | ||
| Author | ||
| Mohamed A. Ibrahim | ||
| Lt. Col., Miltary Technical College. | ||
| Abstract | ||
| Abstract: Advanced technology efforts toward s the development and processing of light weight armor material fitted for personnel protection lead to toughned ceramic materials. Zirconia Toughened Alumina (ZTA) (Al2O3 5 %wt. YPSZ reinforced with 10 % wt. of SiC particulates) ceramic matrix composite has been characterized with respect to its densification, room temperature mechanical properties, phase composition and microstructure.It was found that the composite could be densified at a temperature as low as 1575 oC by liquid phase sintering. A bending strength of 120 MPa was obtained for 75 % wt. Al2O3 , 10 % wt. ZrO2, 10 % wt. SiC, 5% wt. Y2O3 and 1% add on weight MgO composite . Lower sintering temperature was beneficial to the retention of tetragonal ZrO 2 phase at room temperature. The results indicate that liquid phase sintering has a potential advantage in the fabrication cost and room tem perature mechanical properties A complete protection against 7.62x39 AP (armor piercing projectile) with muzule velocity 750 m/sec was achieved using the above composite with area density 48 kg/m2, this area density enable this composite to replace armored steel in bothe personnel and light armored vehicles. | ||
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