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MgO-incorporated carbon nanotubes-reinforced Mg-based composites to improve mechanical, corrosion, and biological properties targeting biomedical applications
, Article Journal of Materials Research and Technology ; Volume 20 , 2022 , Pages 976-990 ; 22387854 (ISSN) ; Shamsipur, A ; Bakhsheshi-Rad, H. R ; Keshavarz, M ; Kehtari, M ; Ramakrishna, S ; Berto, F ; Sharif University of Technology
Elsevier Editora Ltda
2022
Abstract
In this study, magnesium oxide (MgO) nanoparticles are incorporated on carbon nanotubes (CNTs) to reinforce Mg-3Zn-1Mn alloy (ZM31 alloy) by semi-powder metallurgy, followed by hot extrusion, with the purpose of improving the mechanical and biological properties of Mg-based alloy. The microstructural analysis of the nanocomposites indicated a reduction in grain size of Mg alloy with the incorporation of CNTs with a maximum reduction of 61% (ZM31/CNTs), with further reduction in grain size (68%) detected when MgO integrated CNTs composites (ZM31/MgO-CNTs). The compression characteristics of the composites indicate an increase in ultimate compressive strength of 36% and 44%, respectively, with...