Mechanical and microstructural characterization of Al7075/SiC nanocomposites fabricated by dynamic compaction

Evaluation of tensile strength of Al7075-SiC nanocomposite compacted by gas gun using spherical indentation test and neural networks

“…The strength rise is, however, not as high for the Al7075-10 vol% SiC. Lower strength improvement for Al7075-10 vol% SiC is believed to be due to agglomeration of nano particles which acts as barrier to further strengthening of the powder compact [2,7,31]. This finding is almost consistent with the variation of Vickers micro-hardness obtained from Tabor equation [7,21,32,33] for the three nanocomposite samples as shown in Fig.…”

“…These MMCs enjoy the strength, toughness and some other properties of a metal on one hand and the properties of ceramics, e.g. temperature and wear resistance [1,2] on the other hand. Introducing nano particles reinforcement to such matrices also produces metal matrix nanocomposites (MMNCs) with more sophisticated properties.…”

Effect of B4C and SiC nanoparticle reinforcement on the wear behavior and surface structure of aluminum (Al6063-T6) matrix composite

“…Brake pads are developed with light aluminum alloy reinforced with SiC to augment the strength and wear resistance and explore the advantage of low density of the matrix [27]. The work-hardening effects of the added nanoparticles, and its intrinsic hardness, the hardness of the reinforced Al7075/SiC nanocomposite was enhanced about 20% with respect to the monolithic material [28]. A fine and uniform particle distribution of SiC increased the yield strength, ultimate tensile strength, Young's modulus, density and hardness of the alloy.…”

Compressive strength and thermal properties of spark plasma sintered Al-Al2O3 nanocomposite

“…These properties are influenced by not only the attributes of the individual components, the interface between the matrix and reinforcement, and the extent of reinforcement dispersion, but also the synthesis and consolidation processes [2,[5][6][7]. Several powder metallurgy methods have been used to synthesize and consolidate Al-based composites including ball milling [8] furnace sintering [9], hot pressing [10], hot isostatic pressing [11], microwave sintering [7], spark plasma sintering [4,12], and dynamic compaction [13].…”