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D.V.Maheswar等人测量了不含稀土元素的二元Fe_xCu_(100-x)纳米粒的磁热特性,Fe_xCu_(100-x)(x=30~35)是用球磨法制成的。磁性测量表明这种纳米粒矫顽力很低,室温下呈现软磁特性,由于Fe含量变化,居里温度变化于268K至360K之间,Arrott曲线的正斜率证明磁转变属于第二类。磁热效应(ΔSm)和相对致冷功率(RCP)这两性能方面,二元Fe_xCu_(100-x)纳米粒与其他铁基合金差不多,然而它具有高热导性、良好
D.V. Maheswar et al. Measured the magnetocaloric properties of binary Fe_xCu_ (100-x) nanoparticles containing no rare earth elements. Fe_xCu_ (100-x) (x = 30-35) was prepared by ball milling. Magnetic measurements show that the coercivity of this nanoparticle is very low and exhibits soft magnetic properties at room temperature. Since the Fe content changes, the Curie temperature changes between 268K and 360K. The positive slope of the Arrott curve proves that the magnetic transition belongs to the second group. Binary Fe_xCu_ (100-x) nanoparticles are similar to other Fe-based alloys in terms of magnetocaloric effect (ΔSm) and relative cooling power (RCP)