摘要
In this research, an investigation was conducted to ascertain the impact of boron carbide (B 4 C) microparticles on soft and hard armor configurations, utilizing two distinct high-performance fabrics namely, Kevlar and Ultra-high Molecular Weight Polyethylene (UHMWPE), also this work discerned the optimal fabric for protection against dagger attacks and 9 mm full metal jacket (FMJ) projectiles. Initially, rheological tests on four shear thickening fluid (STF) samples revealed that 70% of nano-silicate (SiO 2 ) content was the optimal ratio. Besides, scanning electronic microscope (SEM) tests showed that B 4 C affected the nano-silicate dispersion. Hence, the use of STF as a matrix, led to complete protection in low-velocity stab test and behavior improvement when subjected to NIJ ballistic test for both fabric types. On the other hand, the dynamic mechanical analysis (DMA) of the thermosetting epoxy resin-based composites reinforced by B 4 C indicated that the 10% ratio offered maximum rigidity, resulting in improved ballistic performance. This study revealed that Kevlar fabrics exhibit superior behavior in soft protection, while UHMWPE hard composite display further rigidity against high-velocity impacts. Overall, this work contributes novel insights into the efficiency of B 4 C integration within soft and hard armor configurations using two ballistic fabrics, highlighting their performance characteristics in ballistic shielding. Highlights Investigation of B 4 C microparticles: The research examines the impact of B 4 C microparticles on soft and hard armor configurations. High-performance fabrics: Kevlar and UHMWPE uses. The use of STF as a matrix for soft and thermosetting epoxy resin for hard armor: enhanced composite performance. Low-velocity and high-velocity impact tests investigations; microparticles B 4 C incorporation: superior mechanical characteristics. Remarkable energy absorption: promising shielding uses.
危险品化学品经营许可证（带存储）