| Autor: |
Matli, Penchal Reddy, Manohar, Guttikonda, Abdelatty, Rokaya, Shakoor, Rana Abdul, Azeem, Abdul, Lingala, Siva Sankara Reddy, Kotalo, Rama Gopal, Mohamed, A. M. A. |
| Zdroj: |
Emergent Materials; 20240101, Issue: Preprints p1-9, 9p |
| Abstrakt: |
This study focuses on the fabrication of aluminum-based hybrid metal matrix composites with a consistent SiC content of 2 wt% and varying concentrations of Al2O3nanoparticles (2, 4, and 6 wt%), aiming to understand their improved properties and explore their potential applications in diverse industries. By utilizing the powder metallurgy method, Al-SiC-Al2O3nanocomposite samples were synthesized through microwave sintering, followed by a comprehensive examination of their microstructural and mechanical properties. Experimental results revealed a uniform dispersion of Al2O3nanoparticles in the Al matrix. The microwave-sintered Al-2SiC-4Al2O3hybrid nanocomposite demonstrated significant improvements in various mechanical properties compared to pure Al, including an impressive increase in microhardness by approximately 115% (86 HV vs. 40 MPa), a substantial enhancement in yield strength by approximately 54% (113 ± 4 MPa vs. 73 MPa), and a remarkable increase in ultimate compressive strength by approximately 19% (364 ± 3 MPa vs. 305 MPa). The uniform dispersion of dense alumina nanoparticles, collectively contributing to a combined effect of strengthening mechanisms, attributed the observed enhancement in the mechanical properties of the nanocomposites. |
| Databáze: |
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