Al/SiC nanocomposites with enhanced thermomechanical properties obtained from microwave plasma-treated nanopowders

Synergistic strengthening of aluminum with SiC by grain refinement and dispersion hardening

“…In addition, 1 vol.%-550-8 and 2 vol.%-550-12 h exhibited a higher offset from the Hall-Petch line, indicating improved strengthening efficiency with a fixed content of SiC p . Moreover, the grain refinement in the Al matrix increased significantly with the dispersion of a higher volume fraction of SiC p TA B L E 3 Comparison of tensile strength of SiC p /Al composites produced in this study with those reported in literature 11,[29][30][31][56][57][58][59][60][61] during ball milling at 550 rpm for 12 h. Therefore, the grain boundary strengthening and the dislocation strengthening were more dominant in the matrix because of the highly dispersed SiC p during ball milling, as estimated using Equations ( 4) and (5) (Table S1). This strengthening mechanism improved the YS of SiC p /Al as noted by the Hall-Petch relation for the 2 vol.%-550-12 composite.…”

Production and Characterization of Aluminum Reinforced with SiC Nanoparticles

“…In recent years, the interest in advanced materials with improved mechanical and thermal properties has driven significant advancements in composite materials [1][2][3]. Among these, aluminum metal matrices reinforced with micrometric and nanometric reinforcement as silicon carbide (SiC) have gained considerable attention due to their potential to offer exceptional mechanical strength, enhanced wear resistance, and improved thermal stability [4][5][6][7]. Incorporating nanometric particles into aluminum matrices exploits the inherent properties of both materials and introduces synergistic effects that can lead to superior material performance [6][7][8][9][10][11][12][13].…”

“…Different particles can be used to improve the properties of aluminum materials. Some of the most reported are SiC [6][7][8][9], Al 2 O 3 [10], TiC [11], and carbon-based nanoparticles such as carbon nanotubes (CNTs) [12,13]. Among these, SiC, a hard and chemically inert ceramic material, has demonstrated remarkable mechanical and thermal attributes, making it a convincing candidate for use as a reinforcement of the aluminum matrix [6,7].…”

“…The combination of powder metallurgy with deformation processes has shown to be effective in producing an aluminum matrix reinforced with SiC nanoparticles [6,18,19]. Soltani et al [18] investigated the production of these nanocomposites using cold pressing and hot extrusion.…”

“…However, few studies have focused on producing Al reinforced with SiC nanoparticles by powder metallurgy, mainly in developing dispersion techniques [6,7,14,15,18]. In this context, the aim of this investigation was to produce Al-SiC nanocomposites by conventional powder metallurgy.…”