Determination of the mechanical properties of al/mwcnt composites obtained with the reinforcement of cu-coated multiwall carbon nanotubes (mwcnts)
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Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inst Za Kovinske Materiale I In Tehnologie
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, Al/MWCNT composites were produced by milling copper-coated MWCNTs in small amounts (2.5-7.5%) with aluminum powders using the mechanical alloying method. Then, sintering was applied to the composite material. A phase analysis and microstructure investigations were performed on the as-sintered samples. A hardness test was conducted and tribological performances of the unreinforced and MWCNT-reinforced composites were examined at room temperature. Results showed that the hardness of the base-aluminum alloy was improved. The phase belonging to the MWCNTs was detected with an X-ray diffraction analysis. The wear rate generally decreased with the addition of MWCNTs in all test conditions. Sintering had a positive effect, enhancing the wear and hardness behaviour. Abrasive, adhesive, oxidative and thermal wear mechanisms were observed with a scanning electron microscope (SEM).
Açıklama
Anahtar Kelimeler
powder metallurgy, MWCNT, mechanical behaviour, Cu coating
Kaynak
Materiali In Tehnologije
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
54
Sayı
5
