Boron carbide (B4C) is a hard material whose value for extended engineering applications such as body armor; is limited by its brittleness under impact. To improve the ductility while retaining hardness, we used density functional theory to examine modifying B4C ductility through microalloying. We found that replacing the CBC chain in B4C with Si-Si, denoted as (B11Cp)-Si2, dramatically improve...

Al-5Cu-0.8Mn-0.1Zr strips produced during a twin-roll-casting process are investigated in this paper. Central segregation does occur the alloy strip, and is mixture of Al2Cu Al20Cu2Mn3 eutectic phases. This difficult to be dissolved solid solution heat treatment. In paper, nano-sized TiC/TiB2 particles introduced twin-roll-casting. It was found that after adding 0.3% TiC-TiB2 particles, composi...

In this study, 1 wt% boron carbide (B4C) reinforced PVA nanofibers were fabricated by the electrospinning technique as a new generation of ultra-thin, lightweight, and flexible neutron shielding nanocomposites. The influence B4C particles' size morphology on fiber formation radiation performance mats was investigated. results indicate that particle characteristics have dramatic properties thick...

This research focusses on synthesizing the hybrid nanocomposite samples with AA8050 and reinforcement of B4C TiB2 nanoparticles at 3 different quality grades. To investigate their machinabilities prepared composites in computer-aided machining centre, objectives are maximizing material removal rate (MRR) minimizing surface roughness for a specific application. Stir casting process was employed ...

In this experimental study, three TiB2/Al metal matrix composites (MMCs) with 40 μm in mean size were produced using a melt stirring squeeze casting route. Test was carried out to find the parameters influencing surface roughness (Ra) and material removal rate (MRR) on machining the TiB2 reinforced Al-6063 composite materials. The orthogonal array, the signal-to-noise ratio, and analysis of var...

Aluminum-based metal matrix composites with single or multiple ceramic reinforcements are finding application in the aerospace and automobile industries. In this research work, novel AA7150-B4C (aluminium7150 alloy–Boron carbide) nanocomposites were successfully fabricated, through liquid metallurgy route via stir casting method, incorporation of B4C nanoparticles different weight percentages u...

Nanostructured TiN/TiB2/Fe–Cr–Ni composite powder has been prepared via high energy ball milling. Ti and BN powders are reacted to form uniform mixture of TiN and TiB2 within 2 h of milling by a mechanically activated self-sustaining reaction (MSR). The crystallite sizes of TiN nd TiB2 are about 7 and 16 nm, respectively, after 32 h of milling. Through liquid phase sintering and optimizing the ...