Abstract:
ceramic matrix composites have been developed as an important
engineering material for many structural applications and armor
protection. β-spodumene (Li2O·Al2O3·4SiO2) has been used to improve the
physical and mechanical properties of alumina matrix ceramic composites.
The results show that the presence of 7.5 wt. % spodumene significantly
reduces the porosity, improves the sintering behaviour and increases the
mechanical properties of alumina ceramic composites The target consists of
two-component composite armour, the front facing material is ceramic
composite tile (alumina / β-spodumene) and the backing material is fiber
reinforced polymeric material (S -2 glass reinforced epoxy
M-HY956). Numerical simulations (AUTODYN-2D) were used to simulate
the experimental work results, which include normal impact of two types of
7.62x39mm ammunition (ball with mild steel penetrator and API ) into
ceramic composite armour.
Ballistic impact test results show that the manufactured ceramic composite
targets are defeated both the7.62x39mm ball with mild steel penetrator and
API bullets with areal density range (4.5-5.1 g/cm2).