Authors: Francis, Victor Akoma, Nwabuzor, Peter Onyelukachukwu and Sofolabo, Adekunle Oyemade

CITATION: Francis, Victor Akoma, Nwabuzor, Peter Onyelukachukwu and Sofolabo, Adekunle Oyemade (2025). Effect of deposition time of potassium permanganate nano-thin films on eddy current reduction in transformer cores. Frontline Professionals Journal 2(7), 28-39

ABSTRACT

This study looks at using potassium permanganate (KMnO₄) thin films, made through electrochemical methods, as a substitute for laminating transformer cores on soft iron materials. The study aimed to describe the electrical and crystal properties of KMnO₄ films after they were deposited for different lengths of time (from 5 to 20 minutes) and to compare the results with a control made of silicon iron steel. Four samples of KMnO₄ (X₁,X_2,X₃ & X₄) were deposited at different intervals (5,10,15 & 20) minutes respectively. Characterization of the deposited films with X-ray diffraction (XRD) validated the crystalline structure of KMnO₄ nanoparticles, demonstrating consistent peak positions at 2θ angles of 45.2° and 65.4° across the various deposition times, with d-spacing values of 1.96 Å and 1.42 Å, respectively. The Result showed that sample X₄ (the Sample with the highest deposition time of 20minutes) has the strongest intensity count of 26.61, indicating that longer deposition time increases the intensity, which in turn enhances crystallinity, alignment, and stable crystal size within the thin film. Similarly, electrical investigation showed that increasing the deposition time of KMnO₄ films improves resistivity and reduces conductivity, resulting in a reduction in eddy current losses and increased energy efficiency.