The Influence of Casting-Calendering Process on the Microstructure of Pure Al<sub>2</sub>
O<sub>3</sub>
 Ceramic Substrate

Wang, Shikai; Lan, Haifeng; Wang, W. J.; Yong, Huang; Li, S. J.

doi:10.1002/9781119543381.ch2

Cited by 3 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…of Al 2 O 3 particles were analyzed in relation to the material of the unfortified matrix. In-depth analyses of CMCs have been presented in studies [13,14], which aimed to improve mechanical properties. The recognition of the destruction mechanism in the low and high velocities range may result in the creation of an optimal material exceeding the behavior of ceramics resulting from ballistic impact.…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Kurzawa,

Pyka,

Jamroziak

2019

View full text Add to dashboard Cite

The paper presents the results of experimental-numerical tests of firing at aluminum composite materials. The test materials were manufactured by pressure infiltration of porous ceramic preforms made of -Al 2 O 3 particles in the amount of 30% and 40% by volume. The EN AW-7075 alloy was chosen as the material matrix, and the steel 7.62×39 mm (M 43) FMJ (Full Metal Jacket) intermediate ammunition was selected for firing. In the result of the experiment, the samples were perforated with a clear difference in the muzzle diameter. The projectile with fragments caused damage to up to three reference plates placed behind the samples (witness plates) in composites with 40% of particles by volume. The mechanics of crack propagation during ballistic impacts of the projectile was characterized based on microstructure studies. Then, using numerical analysis of impact load, the examination of composite materials puncture in the ABAQUS environment was carried out. The Finite Element Method (FEM) was employed for the discretization of geometric models using Hex elements. The Johnson-Cook constitutive model describing the relationship between stress and strain in metal-ceramic composites was applied for the analyses. Numerical models were then subjected to numerical verification using smoothed particle hydrodynamics (SPH). Based on the obtained results, it was found that the hybrid FEM/SPH method correlates significantly with the experimental results.

show abstract

Section: Introductionmentioning

confidence: 99%