Exploration reveals optimal coating thickness impacts magnetic performance in applications.
• Carbonyl Iron Powder (CIP) oxidation is an easy way to vary magnetic properties. • Oxidation time is an effective technique for controlling coating thickness of CIP. • Oxygen content of coated powders was measured and coating thickness calculated. • Higher coating thickness does not always lead to lower losses at high frequencies. • Optimum coating thickness depends majorly on intended application frequency range.
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Mohan et al. (2026) studied this question.
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