Effect of Al2O3, SiO2 and carbon nanotubes on the microstructural and mechanical behavior of spark plasma sintered aluminum based nanocomposites

Spark plasma sintering (SPS) has been recognized, in the recent past, as a very useful method to produce metal matrix composites with enhanced mechanical and wear properties. Obviously, the materials final properties are strongly related to the reinforcement types and percentages as well as to the p...

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Bibliographic Details
Published in:Particulate science and technology 2020-01, Vol.38 (1), p.7-14
Main Authors: Sadeghi, B., Cavaliere, P., Perrone, A.
Format: Article
Language:English
Subjects:
Aluminum matrix composites
Aluminum oxide
Carbon nanotubes
Mechanical properties
Metal matrix composites
microstructure
Nanocomposites
Plasma sintering
Porosity
Process parameters
processing parameters
Reinforcement
Silicon dioxide
Spark plasma sintering
spark plasma sintering (SPS)
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Summary:Spark plasma sintering (SPS) has been recognized, in the recent past, as a very useful method to produce metal matrix composites with enhanced mechanical and wear properties. Obviously, the materials final properties are strongly related to the reinforcement types and percentages as well as to the processing parameters employed during synthesis. The present paper analyses the effect of the addition of 2 wt% of Al 2 O 3 , SiO 2 and carbon nanotubes (CNTs) on the mechanical and microstructural behavior of Al-based metal matrix composites produced via SPS. The results show that porosity and mechanical properties are strongly related to the reinforcement type. In particular a strong beneficial effect is revealed by Al 2 O 3 nano particles and CNTs because of the optimal reinforcement dimensions.
ISSN:0272-6351
1548-0046
DOI:10.1080/02726351.2018.1457109