Transparent armour materials

Klement, R.; Rolc, Stanislav; Mikulíková, Regina; Křesťan, Jan

doi:10.1016/j.jeurceramsoc.2007.09.036

Cited by 73 publications

(28 citation statements)

References 2 publications

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“…8 shows that both the density (ρ) and crystallization degree (α) of the samples increased dramatically with an increase in heat-treatment temperature. A complete crystallization was achieved at 1300 • C for 2 h, accompanied by a density increase from 4.55 to 5.34 g/cm 3 . Notably, when the treatment was performed at 1200 • C for 2 h, the crystallization degree had reached 95.2 wt%, which suggests that the transition from glass to crystalline ceramic had been realized.…”

Section: Preparation Of Alz Transparent Nanoceramics By Crystallizationmentioning

confidence: 99%

“…Transparent ceramics, such as yttrium aluminum garnet (YAG), alumina (Al 2 O 3 ) and alumina-magnesia spinel (MgAl 2 O 4 ), have attracted increasing attentions because of their excellent mechanical strength (resistance to wear and bending), chemical and thermal stability (corrosion resistance), and optical properties (high refractive index), which provide wide applications ranging from high-pressure sodium and metal-halide lamps, 1,2 armor, 3 wave filter, 4 window materials 5,6 to lasers. 7 Recently, most researches on transparent ceramics are focusing on tailoring the microstructure, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of transparent LaAlO3/t-ZrO2 nanoceramics through controlled amorphous crystallization

Mei¹,

He²,

Wang³

et al. 2011

Journal of the European Ceramic Society

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Section: Preparation Of Alz Transparent Nanoceramics By Crystallizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of transparent LaAlO3/t-ZrO2 nanoceramics through controlled amorphous crystallization

Mei¹,

He²,

Wang³

et al. 2011

Journal of the European Ceramic Society

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“…Polymers are eight times less dense than steel and thus an obvious route to lighter structures. A prominent example of their application is transparent armor, a laminate of inorganic glass and polymer layers that affords rigidity, toughness, and resistance to crack propagation [8,9,10,11]. Fiber composites are often layered with harder materials such as steel to yield better performance for a given weight [12].…”

Section: Introductionmentioning

confidence: 99%

Elastomer-metal laminate armor

et al. 2016

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• Polymer-aluminum laminates on the strike-face of steel plates enhance ballistic performance.• With judicious selection of substrate and laminate, a broad range of performance and weight combinations can be obtained.• There is both a reduction in magnitude of the substrate deformation and spatial dispersion of the impact.• The main function of the metallic layers is to stiffen the polymer without affecting the latter's viscoelasticity response. A study was carried out of pressure wave transmission and the ballistic penetration of steel substrates incorporating a front-face laminate, the latter consisting of alternating layers of thin metal and a soft polymer; the latter undergoes a viscoelastic phase transition on impact. The ballistic properties of laminate/steel structures are substantially better than conventional military armor. This enhanced performance has three origins: large energy absorption by the viscoelastic polymer, a significant strain-hardening of the material, and lateral spreading of the impact force. These mechanisms, active only at high strain rates, depend on the chemical structure of the polymer but not on the particular metal used in the laminate. G R A P H I C A L A B S T R A C T a b s t r a c t a r t i c l e i n f oPublished by Elsevier Ltd.

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“…Other idea assume protective system consisting of ceramic tile surrounded by a metal packet [10]. Also transparent ceramic are extensively used in armour [11][12][13]. In case of ceramics matrix composite (CMCs), it can be reinforced by fibres or particulates.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study of armour system consisted of ceramic and ceramic- elastomer composites

Chábera¹,

Boczkowska²,

Morka³

et al. 2014

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper presents numerical and experimental results in the study of composite armour systems for ballistic protection. The modelling of protective structures and simulation methods of experiment as well as the finite elements method were implemented in LS DYNA software. Three armour systems with different thickness of layers were analyzed. Discretization for each option was built with three dimensional elements guaranteeing satisfactory accuracy of the calculations. Two selected armour configurations have been ballistically tested using the armour piercing (AP) 7.62 mm calibre. The composite armour systems were made of Al2O3 ceramics placed on the strike face and high strength steel as a backing material. In case of one ballistic structure system an intermediate ceramic-elastomer layer was applied. Ceramic-elastomer composites were obtained from porous ceramics with porosity gradient using pressure infiltration of porous ceramics by elastomer. The urea-urethane elastomer, as a reactive liquid was introduced into pores. As a result composites, in which two phases were interconnecting three-dimensionally and topologically throughout the microstructure, were obtained. Upon ballistic impact, kinetic energy was dissipated by ceramic body The residual energy was absorbed by intermediate composite layer. Effect of the composite shell application on crack propagation of ceramic body was observed.

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Transparent armour materials

Cited by 73 publications

References 2 publications

Fabrication of transparent LaAlO3/t-ZrO2 nanoceramics through controlled amorphous crystallization

Fabrication of transparent LaAlO3/t-ZrO2 nanoceramics through controlled amorphous crystallization

Elastomer-metal laminate armor

Numerical and experimental study of armour system consisted of ceramic and ceramic- elastomer composites

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