Enhanced tribology, thermal and electrical properties of Al-CNT composite processed via spark plasma sintering for transmission conductor

Studies show that monolithic Al lacks requisite properties required for industrial applications. However, these properties can be enhanced by the addition of high-performing reinforcement such as carbon nanotubes (CNTs). Here, Al is reinforced with CNTs and consolidated via spark plasma sintering, w...

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Bibliographic Details
Published inJournal of materials science Vol. 54; no. 22; pp. 14064 - 14073
Main Authors Ujah, C. O., Popoola, A. P. I., Popoola, O. M., Aigbodion, V. S.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.11.2019
Springer
Springer Nature B.V
Subjects
Alloys
Aluminum base alloys
Analysis
Carbon nanotubes
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Conductors
Crystallography and Scattering Methods
Electric properties
Electrical conductivity
Electrical properties
Electrical resistivity
Electronic Materials
Industrial applications
Materials Science
Nanotubes
Plasma sintering
Polymer Sciences
Product design
Sintering
Solid Mechanics
Spark plasma sintering
Thermal conductivity
Thermal properties
Thermodynamic properties
Tribology
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Summary:Studies show that monolithic Al lacks requisite properties required for industrial applications. However, these properties can be enhanced by the addition of high-performing reinforcement such as carbon nanotubes (CNTs). Here, Al is reinforced with CNTs and consolidated via spark plasma sintering, with the aims of improving its tribology, thermal and electrical properties. The tribological test was conducted on a ball-on-disc tribometer. The thermal test was done with the thermogravimetric analyzer and laser flasher apparatus; the electrical conductivity test was carried out with four-point probe meter. Results obtained showed that 4 wt% of CNTs improved the COF of Al alloy by 52% and wear volume by 23%. It also improved the thermal conductivity by 35%. The electrical result showed a marginal improvement of 2% with Al-8CNTs. Therefore, the improvements in tribology and thermal properties without compromising electrical conductivity show that Al-CNTs are a robust material for industrial application especially in high-transmission conductor.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-019-03894-x