Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites

Basit Öğe Kaydı
dc.contributor.authorDogan, Kemal
dc.contributor.authorOzgun, Muhammed Ihsan
dc.contributor.authorSubutay, Halit
dc.contributor.authorSalur, Emin
dc.contributor.authorEker, Yasin
dc.contributor.authorKuntoglu, Mustafa
dc.contributor.authorAslan, Abdullah
dc.date.accessioned2024-02-23T14:00:14Z
dc.date.available2024-02-23T14:00:14Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractThe combination of powder metallurgy and ball milling method has been widely regarded as the most beneficial route for producing multi-walled carbon nanotubes (MWCNTs)-reinforced aluminum matrix composites. In this study, the effects of different milling times (1, 2, 4, and 8 h) on the structural, morphological, and crystallographic properties of MWCNTs-reinforced Al7075 composite powders were characterized by particle size analyzer, Raman spectroscopy, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), and X-ray diffraction (XRD). After the morphological and structural characterization of the milled powders, the microstructural and mechanical properties of the hot-pressed composites were evaluated using an optical microscope, SEM, density, and Brinell hardness measurements. Considering milled powder characterization, the MWCNTs were gradually distributed and embedded within the matrix as the milling time increased. Milling for 8 h resulted in a minimum level of particle size (11 mu m) with shortened and uniformly dispersed CNTs. Brinell hardness of the composite increased from 91 to 237 HB -a x2053;%160 after 8 h of milling. Such a remarkable increment in hardness could be attributed to several concurrent strengthening effects related to dispersion, solution, grain refinement, and Orowan looping mechanisms. However, relative density results revealed that the composite produced by 2 h milled powders exhibited the highest density (%99.96). The observed differences between hardness and density results were ascribed to powders' deteriorated packing and sintering behavior due to an increment in the hardness of particles and variation in particle size range and morphology, which resulted from following different milling protocols.en_US
dc.identifier.doi10.1007/s43452-022-00374-z
dc.identifier.issn1644-9665
dc.identifier.issn2083-3318
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85123576860en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1007/s43452-022-00374-z
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11522
dc.identifier.volume22en_US
dc.identifier.wosWOS:000746624200002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringernatureen_US
dc.relation.ispartofArchives Of Civil And Mechanical Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAluminumen_US
dc.subjectCarbon Nanotubesen_US
dc.subjectBall Millingen_US
dc.subjectHot Pressingen_US
dc.subjectMicrostructural Characterizationen_US
dc.titleDispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocompositesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu