Deformation behavior and amorphization in icosahedral boron-rich ceramics
Among hard materials, icosahedra-based boron-rich ceramics are only second to diamond-
based structures. This class of ceramics possesses lower density, higher thermal and …
based structures. This class of ceramics possesses lower density, higher thermal and …
Addressing amorphization and transgranular fracture of B4C through Si doping and TiB2 microparticle reinforcing
Over the last two decades, many studies have contributed to improving our understanding of
the brittle failure mechanisms of boron carbide and provided a road map for inhibiting the …
the brittle failure mechanisms of boron carbide and provided a road map for inhibiting the …
Experimental observations of amorphization in stoichiometric and boron-rich boron carbide
Boron carbide is extremely hard but has been shown to undergo stress-induced
amorphization when subjected to large nonhydrostatic stresses. This localized …
amorphization when subjected to large nonhydrostatic stresses. This localized …
Spark-plasma sintering of boron carbide–silicon carbide composites at 1400 C from B4C+ Si: densification and sintering/reaction mechanisms
The feasibility of fabricating novel boron carbide–silicon carbide composites by spark-
plasma sintering (SPS) of B 4 C+ Si powder mixtures at only 1400° C was investigated. First …
plasma sintering (SPS) of B 4 C+ Si powder mixtures at only 1400° C was investigated. First …
On the evaluation of mechanical properties and ballistic performance of two variants of boron carbide
A comparative study on the microstructure, rate-dependent compressive behavior, and
ballistic performance of commercially available pressureless sintered boron carbide-titanium …
ballistic performance of commercially available pressureless sintered boron carbide-titanium …
[HTML][HTML] Boron carbide based composites densified via Ti3SiC2 boronizing with excellent mechanical properties and amorphization tolerance
Consolidated boron carbide (B 4 C) composites are extremely hard but have been shown to
undergo stress-induced amorphization when subjected to high velocity impact. This …
undergo stress-induced amorphization when subjected to high velocity impact. This …
Directional amorphization of covalently-bonded solids: A generalized deformation mechanism in extreme loading
Shock compression subjects materials to a unique regime of high quasi-hydrostatic pressure
and coupled shear stresses for durations on the order of 1–10 nanoseconds for laser-driven …
and coupled shear stresses for durations on the order of 1–10 nanoseconds for laser-driven …
Tuning the deformation mechanisms of boron carbide via silicon doping
Boron carbide suffers from a loss of strength and toughness when subjected to high shear
stresses due to amorphization. Here, we report that a small amount of Si doping (~ 1 …
stresses due to amorphization. Here, we report that a small amount of Si doping (~ 1 …
Grain boundary segregation in Si-doped B-based ceramics and its effect on grain boundary cohesion
Boron carbide and boron suboxide are attractive for their low densities and ultrahigh
hardness values, yet they exhibit poor fracture resistance. Strategies to improve mechanical …
hardness values, yet they exhibit poor fracture resistance. Strategies to improve mechanical …
Local amorphization in boron carbide at finite temperature: Strategies toward improved ductility
Boron carbide (B 4 C) is superhard, but its engineering applications are limited by the
abnormal brittle failure arising from amorphous shear band formation. Mitigating the local …
abnormal brittle failure arising from amorphous shear band formation. Mitigating the local …