Effect of Fabrication Parameters on the Performance of 0.5 wt.% Graphene Nanoplates-Reinforced Aluminum Composites
| Autor: | Chuan Dong Qu, Ping Ping Zhang, Ling Wei Ran, Qing Biao Wang, Guang Xin Guo, Chun Jian Su, Yong Qiang Liu, Shu Mei Lou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication GNP Composite number chemistry.chemical_element orthography test Hot pressing lcsh:Technology Article law.invention Aluminium law Ultimate tensile strength parameter optimization General Materials Science Composite material lcsh:Microscopy Ball mill lcsh:QC120-168.85 lcsh:QH201-278.5 Graphene lcsh:T Microstructure graphene nanoplates-reinforced aluminum composite chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 13, Iss 3483, p 3483 (2020) Materials Volume 13 Issue 16 |
| ISSN: | 1996-1944 |
| Popis: | Aluminum composites reinforced by graphene nanoplates(GNP) with a mass fraction of 0.5% (0.5 wt.% GNP/Al) were fabricated using cold pressing and hot pressing. An orthogonal test was used to optimize the fabrication parameters. Ball milling time, ball milling speed, and ultrasonic time have the largest influence on the uniformity of the graphene in the composites. Afterwards, the microstructure, interfacial properties, and fracture morphology of the composites obtained with different parameters were further analyzed. The results show that ball milling time and ball milling speed have obvious influences on the mechanical properties of the composite. In this paper, when the ball milling speed is 300 r/min and the ball milling time is 6 h, the dispersion uniformity of graphene in the 0.5 wt.% GNP/Al composite is the best, the agglomeration is the lowest, and the mechanical properties of the composites are the best, among which the tensile strength is 156.8 MPa, 56.6% higher than that of pure aluminum fabricated by the same process (100.1 MPa), and the elongation is 19.9%, 39.8% lower than that of pure aluminum (33.1%). |
| Databáze: | OpenAIRE |
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