Cardiff University2025-01-022025-01-02https://dspace.academy.edu.ly/handle/123456789/972The results demonstrate that the depth of manganese oxide (IV) diffusion decreases with varying temperatures. The optimal diffusion of manganese into the strips occurs at 525 °C, compared to 700 °C and 800 °C. Therefore, it was concluded that the power losses (W/kg) in the coating samples were improved by 7 % as compared with uncoated samples.This research work aims to decrease the power loss of electrical steel by enhancing its surface resistivity. The proposed approach involves introducing additional alloying elements through diffusion after the steel sheet reaches its final thickness. Various methods for increasing the resistivity of the strip have been proposed and tested. The technique involves creating a paste by mixing the diffusant element in powder form with specific solutions, which are then applied to the steel surface. Upon firing the sample, successful transfer of some elements to the steel isDEVELOPMENT AND ASSESSMENT OF NEW ELECTRICAL STEELS FOR HIGH FREQUENCY APPLICATIONS