Transparent ceramic and glass-ceramic materials for armor applications

Development of magnesium‐aluminum‐silicate glass‐ceramics nucleated with Nb2O5

“…Transparent armor systems (TAS) are multifunctional laminates, its performance is influenced by the strike face mode of fracture (inertia force of its fragments), elastic modulus and hardness . TAS performance also depend of the intermediate layers stiffness, densification and failure mechanisms .…”

“…Magnesium‐aluminum‐silicate (MAS) glass‐ceramics nucleated with Nb 2 O 5 (Nb‐MAS), could be a more suitable solution than commercial transparent ceramics and glass‐ceramics . This is due to the synergy of technical and economic aspects, such as transparency and impact stability, as well as market feasibility, including affordability and scaling up …”

“…In this work, we develop MAS TGC nucleated with Nb 2 O 5 as an alternative strike face solution to improve TAS performance, following the hypothesis and guidelines presented by previous reports. As a first step, a glass‐ceramic composition was selected—pursuing a balance between mechanical properties, transparency and feasibility—and its crystalline volume fraction was estimated.…”

“…Thus, we apply the TAS design guidelines previously presented, by which materials should be evaluated in a straightforward way, from less costly analyses to the most complex‐expensive ones. We performed an microstructural characterization through Raman, XRD and SEM analisis.…”

Real‐Time and Quantitative Measurement of Crack‐Tip Stress Intensity Factors Using Digital Holographic Interferometry

“…Transparent materials are widely used in many engineering applications such as conductive materials [1][2][3], electrode materials [4][5][6][7], thermoelectric materials [8], encapsulation materials [9], and bulletproof materials [10,11]. e fracture and fatigue problems are critical for many applications of the transparent materials.…”