Electrophoretic Coating of Fe3o4 Nanoparticles Synthesized By Combustion Method on Carbon Fibers

Magnetite (fe3o4) nanoparticles have been readily prepared via a one-step solution combustion synthesis (scs) method. the combustion reaction mechanism, microstructure and phase composition of scs products have been systematically investigated. xrd patterns of fe3o4 powders showed a good crystallization obtained in the combustion method. in the following, iron oxide nanoparticles were coated on a substrate of conductive fibers by electrophoretic deposition process. electrophoretic deposition is a coating process by which the particles suspended in a colloid solution are collected onto a substrate by electric field. the electrophoresis process was performed in a bed of acetone solvent and high molecular weight polyethylene glycol for stabilizing and 3% rosin ester was used to increase the particle adhesion. according to the results, the coating quality reduced when the precipitation yield increased versus times. addition of polyethylene glycol improved the stability of the fe3o4 nanoparticles solution and build up the amount of settling them on the carbon fibers. the current density also declined with time in both samples after applying voltage to the suspension. the suspension consistency and the precipitation rate on the electrode were attributed to the conductivity reduction and formation of layer on the carbon fiber electrode surface. at the end of current density graph, a stability was seen in the flow charts. the production of this coating with precise thickness on conductive fibers can be used in many applications such as gas sensors and magnetic shields.

Electrophoretic coating of Fe3O4 nanoparticles synthesized by combustion method on carbon fibers

Magnetite (Fe3O4) nanoparticles have been readily prepared via a one-step solution combustion synthesis (SCS) method. The combustion reaction mechanism, microstructure and phase composition of SCS products have been systematically investigated. XRD patterns of Fe3O4 powders showed a good crystallization obtained in the combustion method. In the following, iron oxide nanoparticles were coated on a substrate of conductive fibers by electrophoretic deposition process. Electrophoretic deposition is a coating process by which the particles suspended in a colloid solution are collected onto a substrate by electric field. The electrophoresis process was performed in a bed of acetone solvent and high molecular weight polyethylene glycol for stabilizing and 3% rosin ester was used to increase the particle adhesion. According to the results, the coating quality reduced when the precipitation yield increased versus times. Addition of polyethylene glycol improved the stability of the Fe3O4 nanoparticles solution and build up the amount of settling them on the carbon fibers. The current density also declined with time in both samples after applying voltage to the suspension. The suspension consistency and the precipitation rate on the electrode were attributed to the conductivity reduction and formation of layer on the carbon fiber electrode surface. At the end of current density graph, a stability was seen in the flow charts. The production of this coating with precise thickness on conductive fibers can be used in many applications such as gas sensors and magnetic shields.