Study of the properties of a composite material Fe78Si9B13 / GNP in an epoxy matrix

Marcelo Ruben Pagnola; Jairo Useche; Javier Faig; Sergio Ferrari; Ricardo Martinez Garcia

doi:10.32397/tesea.vol5.n1.593

Authors

Marcelo Ruben Pagnola INTECIN (UBA-CONICET) https://orcid.org/0000-0003-1514-0287
Jairo Useche Universidad Tecnológica de Bolívar, Facultad de Ingeniería, Colombia. https://orcid.org/0000-0002-9761-2067
Javier Faig CONICET - Universidad de Buenos Aires, Instituto de Tecnologías y Ciencias de la Ingeniería “Hilario Fernández Long”, (INTECIN), Buenos Aires, Argentina https://orcid.org/0009-0004-7459-6887
Sergio Ferrari Universidad de Buenos Aires, Facultad de Ingeniería, Departamento de Física, Laboratorio de Solidos Amorfos, Buenos Aires, Argentina. https://orcid.org/0000-0003-2488-1829
Ricardo Martinez Garcia CONICET - Universidad de Buenos Aires, Instituto de Tecnologías y Ciencias de la Ingeniería “Hilario Fernández Long”, (INTECIN), Buenos Aires, Argentina https://orcid.org/0000-0001-7516-0517

DOI:

https://doi.org/10.32397/tesea.vol5.n1.593

Keywords:

Polvos Magnéticos, Nanoplacas de Grafeno, Composite, Deformación, Compresión, Modulo Elasticidad, Esfuerzos

Abstract

This study investigates the properties of a composite material obtained by mixing Fe₇₈Si₉B₁₃ metallic powders (at %) with graphene nanoplates (GNP) in an epoxy matrix. Four composite types were created with GNP weight proportions of 0%, 0.5%, 1.0%, and 1.5%. The composites were embedded in transparent epoxy with weight proportions of 10%, 15%, and 20%, and then filled into 7 x 20 mm cylindrical probes. Twelve samples were prepared, and another 12 samples were subjected to a longitudinal magnetic field of 1 kG. All samples were tested with a Universal Testing Machine (Model WDW 10E) up to a maximum force of 20 kN. The experiment recorded deformation (ΔH) vs. charge force. Most samples showed a maximum compression resistance of 390 MPa, except for a few that did not exceed 100 MPa. The magnetically oriented samples showed a greater elastic limit in the range of 200 to 270 MPa. Optical microscopy was used to observe the ordering of the particles after the application of the magnetic field. Scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction were used to characterize the structure of the composite components. A vibrating sample magnetometer (VSM) was used to characterize the magnetic behavior of the metallic powders in the composite.

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Author Biography

Marcelo Ruben Pagnola, INTECIN (UBA-CONICET)

Dr.Ing. Marcelo R. Pagnola, born in Buenos Aires on November 22, 1969, completed his training as a mechanical engineer at the Universidad Nacional de Lomas de Zamora, Buenos Aires, Argentina, in 1996. He obtained the degree of Doctor of Engineering at the University of Buenos Aires in 2009 with a Summa Cum Laude, after working in the private sector in different areas and managerial positions. He is currently a member of CONICET and Director of the Magnetic Materials Pilot Plant in INTECIN. He is also a member of different scientific committees, a reviewer of international publications, and a director of different research projects financed by government agencies at national and international levels. Dr. Ing. Pagnola has directed engineering and doctoral theses taught university courses in physics and managed Ph.D. courses in materials and nanomaterials. He is the author of more than 50 publications for congresses, as well as international journals and books on materials engineering. He has received different mentions from the Rector of the University of Buenos Aires for his academic contributions to engineering. He is currently working as a professor in the Department of Physics at the Engineering Faculty of the University of Buenos Aires, Argentina

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