Abstract
The paper presents the results of a comprehensive study of the hysteresis characteristics of Sm1−𝑥Gd𝑥Co3Cu2 alloys (x=0.1–0.9), considering their actual microstructure. It is shown that in the as-cast state, all alloys in the series are significantly heterogeneous and contain inclusions of up to three phase components. Hightemperature annealing at 1050∘C for 4 hours enables modifying the microstructure of the original alloys, however, a single-phase state was only achieved for alloy samples with 𝑥 = 0.1. The high-coercivity state of the samples is provided by a regular microstructure and is implemented through the pinning mechanism. The maximum coercive force of 0.94 T was achieved on the Sm0.4Gd0.6Co3Cu2
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