This analysis shows energy loss density variation in Ni-Fe alloys with frequency, indicating the effectiveness of Steinmetz-like power laws.
The paper discusses the application of Steinmetz-like power laws to the description of total energy losses in Ni-Fe alloys (permalloys). Two types of permalloys with different nickel contents (50% wt. Ni and 79% wt. Ni) were analyzed. A phenomenological two-term formula for the dependence of loss density on frequency and magnetic induction is proposed. For the examined samples the formula yields the averaged errors below 12.3%.
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Najgebauer et al. (2025) studied this question.
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