Magnetic Shape Memory Composite (MSMC) Design from Intermetallic Cu-NiTi-MnAl-Fe3O4 Alloy as an Alternative Replacement for Actuators

Autor: Dhurata Katundi, Mirian de Lourdes Noronha Motta Melo, Fabio Gatamorta, Emin Bayraktar, L. M. P. Ferreira
Rok vydání: 2019
Předmět:
Zdroj: Mechanics of Composite and Multi-functional Materials, Volume 5 ISBN: 9783030300272
Popis: In this work, magnetic shape memory composites (MSMCs) was designed as an alternative replacement of actuators. A special recycled fresh scrap pure electrolytic copper was obtained from the French aeronautic society and milling of Cu-chips was carried out by high energy milling in a planetary ball milling with an inert argon atmosphere to prevent oxidation of the powders. Composite design has been carried out through combined method of powder metallurgy and sinter Forging. Firstly, Cu matrix was doped with fine powder reinforcements (Ni, Mn-Al and Fe3O4 magnetic iron oxide) in different ratios. After that, the ball milling was carried out during the 4 h. Mechanical and physical properties of these composites were analyzed. Magnetic permeability and deformation rate was also measured. The microstructure analyses have been carried out by Scanning Electron Microscope (SEM).
Databáze: OpenAIRE