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Updated: May 7, 2025

Graphene Coatings for Biomedical Implants
Published on: March 1, 2013
Effect of Graphene-Based Coating 3D Printing Process on the Remanence and Corrosion of Sintered NdFeB Magnets
Julio Cesar Serafim Casini1, Isolda Costa2, Rubens Nunes de Faria2
1Federal Institute of Education, Science and Technology of São Paulo Campus, São José dos Campos-IFSP-SJC, São José dos Campos, São Paulo, Brazil.
Abstract:
This study describes a 3D fused deposition modeling (FDM) printing process using a graphene-impregnated polylactic acid (G-PLA) filament to create a new type of rigid, plastic, nonconductive, and anticorrosion layer. Therefore, the possibility of 3D printing a plastic layer using FDM methods is demonstrated herein. A commercial magnet such as N35 NdFeB can be used to produce an efficient shielding film by additive manufacturing. As the coating layer thickness increases, the remanence decreases from 1.17 to 1.01 T for the G-PLA coating. Visual tests were performed after exposure to all aqueous NaCl test solutions (0.5 and 1 M), and no evidence of corrosion of the coating was obtained.
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