Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites
The reinforcing effect of nanoparticles in aluminum matrix nanocomposites (AMCs) is often underestimated, primarily due to weak mechanical bonding at the nanoparticle-matrix interface. In this study, we investigate the role of oxygen in enhancing the mechanical properties of SiC nanoparticle-reinfor...
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| Language: | English |
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Elsevier
2025-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425016886 |
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| author | Miran Joo Donghyun Bae |
| author_facet | Miran Joo Donghyun Bae |
| author_sort | Miran Joo |
| collection | DOAJ |
| description | The reinforcing effect of nanoparticles in aluminum matrix nanocomposites (AMCs) is often underestimated, primarily due to weak mechanical bonding at the nanoparticle-matrix interface. In this study, we investigate the role of oxygen in enhancing the mechanical properties of SiC nanoparticle-reinforced AMCs with the help of increased interfacial bonding. Aluminum powder incorporating oxygen was produced through the gas atomization, and thoroughly blended with 3 vol% SiC nanoparticles using the mechanical milling. The composite powder was consolidated by the hot-pressing process at 500 °C under an applied pressure of approximately 270 MPa. As a result, SiC nanoparticles were uniformly dispersed within an Al–O matrix, referred to as Al–O/SiC composites. An interfacial layer with a higher oxygen concentration than the matrix was observed between the SiC nanoparticles and the matrix. The interfacial layer partitioned by the oxygen exhibited an expanded aluminum lattice, which did not lead to oxide formation. Furthermore, oxygen influenced the bonding states of aluminum and carbon, promoting a robust interface through atomic oxygen bridging. Consequently, the Al–O/3vSiC composites exhibited higher values of Vickers hardness ∼18 % than the Al/3vSiC composites. |
| format | Article |
| id | doaj-art-ffc11dcae5af437d8f38c2a374a88ecb |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-ffc11dcae5af437d8f38c2a374a88ecb2025-08-20T03:27:25ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01374053406310.1016/j.jmrt.2025.07.030Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix compositesMiran Joo0Donghyun Bae1Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of KoreaCorresponding author.; Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of KoreaThe reinforcing effect of nanoparticles in aluminum matrix nanocomposites (AMCs) is often underestimated, primarily due to weak mechanical bonding at the nanoparticle-matrix interface. In this study, we investigate the role of oxygen in enhancing the mechanical properties of SiC nanoparticle-reinforced AMCs with the help of increased interfacial bonding. Aluminum powder incorporating oxygen was produced through the gas atomization, and thoroughly blended with 3 vol% SiC nanoparticles using the mechanical milling. The composite powder was consolidated by the hot-pressing process at 500 °C under an applied pressure of approximately 270 MPa. As a result, SiC nanoparticles were uniformly dispersed within an Al–O matrix, referred to as Al–O/SiC composites. An interfacial layer with a higher oxygen concentration than the matrix was observed between the SiC nanoparticles and the matrix. The interfacial layer partitioned by the oxygen exhibited an expanded aluminum lattice, which did not lead to oxide formation. Furthermore, oxygen influenced the bonding states of aluminum and carbon, promoting a robust interface through atomic oxygen bridging. Consequently, the Al–O/3vSiC composites exhibited higher values of Vickers hardness ∼18 % than the Al/3vSiC composites.http://www.sciencedirect.com/science/article/pii/S2238785425016886CharacterizationAluminum alloysCompositesPowder methodsGrains and interfaces |
| spellingShingle | Miran Joo Donghyun Bae Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites Journal of Materials Research and Technology Characterization Aluminum alloys Composites Powder methods Grains and interfaces |
| title | Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites |
| title_full | Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites |
| title_fullStr | Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites |
| title_full_unstemmed | Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites |
| title_short | Influence of oxygen on the interfacial bonding and mechanical properties in the particulate-reinforced aluminum matrix composites |
| title_sort | influence of oxygen on the interfacial bonding and mechanical properties in the particulate reinforced aluminum matrix composites |
| topic | Characterization Aluminum alloys Composites Powder methods Grains and interfaces |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425016886 |
| work_keys_str_mv | AT miranjoo influenceofoxygenontheinterfacialbondingandmechanicalpropertiesintheparticulatereinforcedaluminummatrixcomposites AT donghyunbae influenceofoxygenontheinterfacialbondingandmechanicalpropertiesintheparticulatereinforcedaluminummatrixcomposites |