| Autor: |
Mitra, Arijit, Sahoo, Mihir Ranjan, Samal, Aiswarya, Pradhan, Sunil Kumar, Polai, Balaram, Sahoo, Krishna Rani, Kar, Subrat, Satpathy, Bijoy Kumar, Narayanan, Tharangattu N, Ajayan, Pulickel M, Satyam, Parlapalli V, Nayak, Saroj K |
| Předmět: |
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| Zdroj: |
Oxford Open Materials Science; 2024, Vol. 3 Issue 1, p1-10, 10p |
| Abstrakt: |
Metal matrix composites have attracted extensive attention from both the research and industrial perspective. In this study, we prepared aluminum-reduced graphene oxide (Al–rGO) composites with enhanced thermal conductivity in an easy single-step process. Pristine Al shows a thermal conductivity of 175 Wm−1K−1 (standard deviation <5%), which increases to 293 Wm−1K−1 for an Al–rGO composite with 1% rGO. Analysis of theoretical models shows that a higher percentage of rGO inside the Al matrix creates a continuous network resulting in more available phase space through which heat carrier phonons travel with less scattering, and hence thermal conductivity of the composite increases. Furthermore, Al–rGO composites show an ∼5% increase in microhardness compared with pristine Al. The electrical resistivity of the composite is comparable to that of pristine Al for a narrow weight percentage of rGO, whereas a 70% enhancement in the thermal conductivity of the composite is observed for the same weight percentage range, suggesting possibilities for exploiting both high electrical and thermal conductivities for various applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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