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The observed magnetization curve of a dilute suspension of carbonyl iron powder, type E, is shown to be closely that one would derive from consideration of a dilute assembly of randomly oriented, single-crystal, multidomain spheres. The deviations are in the directions expected from the effects of stress and non-spherical clumping. The effects of packing and the applicability of various laws of approach to saturation are discussed.
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Bean et al. (1960) studied this question.
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