Acta Metallurgica Sinica (English Letters) ›› 2017, Vol. 30 ›› Issue (7): 675-687.DOI: 10.1007/s40195-017-0579-2
Special Issue: 2017复合材料专辑
• Orginal Article • Previous Articles Next Articles
Abdollah Saboori(), Matteo Pavese, Claudio Badini, Paolo Fino
Received:
2017-01-10
Revised:
2017-02-07
Online:
2017-07-20
Published:
2017-08-22
About author:
These authors contributed equally to this work.
Abdollah Saboori, Matteo Pavese, Claudio Badini, Paolo Fino. Microstructure and Thermal Conductivity of Al-Graphene Composites Fabricated by Powder Metallurgy and Hot Rolling Techniques[J]. Acta Metallurgica Sinica (English Letters), 2017, 30(7): 675-687.
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Fig. 2 a Dimensions of the can used for the consolidation process, b-d samples before and after the various steps of the hot rolling process (RD rolling direction, TD transverse direction)
Fig. 8 Optical microscopy images of press-sintered a pure Al, b Al-0.5 wt% GNPs, c Al-1.0 wt% GNPs, d SEM image of Al-1.0 wt% GNPs, e EDS analysis at a grain boundary, f a representative grain boundary of Al-1.0 wt% GNPs after sintering at 620 °C for 6 h in N2 flow
Composition | ρC (g cm-3) | Press sintered | Hot rolled | ||
---|---|---|---|---|---|
ρ (g cm-3) | HV5 | ρ (g cm-3) | HV5 | ||
Pure Al | 2.7 | 2.646 | 44 ± 2.1 | 2.557 | 42 ± 1.1 |
Al-0.5 wt% GNPs | 2.695 | 2.628 | 51 ± 1.4 | 2.526 | 43 ± 1.5 |
Al-1.0 wt% GNPs | 2.690 | 2.556 | 57 ± 4.2 | 2.441 | 42 ± 2.3 |
Table 1 Density and Vickers hardness of Al-xGNPs (x = 0, 0.5, 1.0 wt%) produced by conventional powder metallurgy and hot rolling
Composition | ρC (g cm-3) | Press sintered | Hot rolled | ||
---|---|---|---|---|---|
ρ (g cm-3) | HV5 | ρ (g cm-3) | HV5 | ||
Pure Al | 2.7 | 2.646 | 44 ± 2.1 | 2.557 | 42 ± 1.1 |
Al-0.5 wt% GNPs | 2.695 | 2.628 | 51 ± 1.4 | 2.526 | 43 ± 1.5 |
Al-1.0 wt% GNPs | 2.690 | 2.556 | 57 ± 4.2 | 2.441 | 42 ± 2.3 |
ρ (kg cm-3) | C (J K-1 kg-1) | υ (m s-1) | References | |
---|---|---|---|---|
Al | 2700 | 895 | 3595 | [ |
Graphene | 2100 | 710 | 14,500 | [ |
Table 2 Properties of structure elements of the models used in the current work
ρ (kg cm-3) | C (J K-1 kg-1) | υ (m s-1) | References | |
---|---|---|---|---|
Al | 2700 | 895 | 3595 | [ |
Graphene | 2100 | 710 | 14,500 | [ |
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