Magnetic Properties and Microstructure of Hot-Pressed and Hot-Deformed Nd₂Fe₁₄B/PrCo₅Hybrid Magnets AITranslate

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Chinese Library Classification Number:TM273[一般工业技术—材料科学与工程]

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Nd₂Fe₁₄B/PrCo₅hybrid magnets were prepared by hot pressing and hot deformation with spark plasma sintering equipment,and their magnetic properties,microstructure and intergranular interaction were investigated.There are Nd₂Fe₁₄B and PrCo₅in both the hot-pressed and hot-deformed hybrid magnets.The anisotropy and magnetic properties of the hot-deformed magnets are significantly affected by the deformation amount.With the increase of the deformation amount,the anisotropy of the magnets increases,the grains are stretched into a lath shape along the direction perpendicular to the pressure,and the coercivity and maximum magnetic energy product decrease monotonously.At the same time,the intergranular exchange coupling of the magnets gradually weakens,and the long-range magnetostatic interaction strengthens.