Balistik Etkisine Karşı Aa5083/Al2o3 Fonksiyonel Derecelendirilmiş Kompozit Malzemeden Ve Aa5083 Köpükten Oluşan Zırh Malzemesinin Üretilmesi Ve Geliştirilmesi


Thesis Type: Postgraduate

Institution Of The Thesis: Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Turkey

Approval Date: 2019

Thesis Language: Turkish

Student: HANDE ARDIÇOĞLU

Supervisor: HANİFİ ÇİNİCİ

Abstract:

In this study, a functional graded foam material consisting of metallic foam and a six-stage functionally graded composite structure, which can be used as a protective armor against ballistic effects, was produced. In this context, one surface is 100% aluminum foam, the other surface have changing ratios of 10, 20, 30, 40, 50, 60% functional graded foam materials with graded composite structure containing Al2O3 were produced. The dimensions of the foam materials in 3 different groups are 60x60x24 mm, 60x60x36 mm, 60x60x48 mm respectively. The AA5083, Al2O3 and TiH2 powders are weighed on a precision scale and the weighed powders are mixed in a high-energy and three-dimensional mixer. Mixed powders were compressed under temperature 500 0 C and 300 MPa pressure to obtain block samples. Macro hardness measurements, SEM and XRD analysis of the interface between the stages and stages of the functional graded foam materials were performed. The hardness, ballistic performance according to MIL-DTL 46027 standard and impact strength of composite materials of different stage thicknesses were analyzed. As a result of the studies, the highest value of macro hardness was obtained with 167 HB and the sample with step thickness 2 mm. In samples with step thicknesses of 4 and 6 mm, no puncture of 300 joule impact energy occurred. In ballistic tests, values above the V50 speed limits in the standard were obtained