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Schematic illustration of the controlled dispersion of PTFE nanoparticles using the FC-4 surfactant and the formation of an Ag–PTFE composite coating.
(The FC-4 surfactant suppresses the agglomeration of PTFE nanoparticles, enabling their stable dispersion in the plating bath. The uniformly dispersed PTFE particles are co-deposited with silver ions onto the electrode surface, forming an Ag–PTFE composite coating. The resulting coating exhibits finer silver grains and benefits from the solid lubricating effect of PTFE, resulting in higher hardness, a lower coefficient of friction, and improved wear resistance compared with conventional silver coatings.)
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Korea Institute of Materials Science (KIMS)
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