Abstract
This research is focused on the crucial function of electromagnetic interference (EMI) shielding and aims to enhance the shielding effectiveness (SE) of stainless steel materials in the 5G frequency range. An extensive study was conducted encompassing the context, experimental methodologies and relevant results. Nano-palladium coated stainless steel emerged as a new hybrid material with substantial potential for electromagnetic compatibility (EMC). Prior to assessing the SE of nanocoated stainless steels, quantitative insights into the material properties were obtained by employing X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The findings indicate a significant enhancement in the EMI shielding capacity after nanopalladium (Pd) coating of different stainless steel types. The quantitative enhancement in shielding was found to be approximately 10%, which represents a significant increase in SE. The SE was determined in decibels (dB), with an increase of approximately 5 dB observed. In particular, for medical and military applications, a 10% enhancement in shielding is highly valuable. This improvement can be attributed to the application of nanostructured palladium particles on the stainless steel surfaces. The nanostructures facilitate the absorption of electromagnetic waves, thereby enhancing the shielding properties of the material.
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