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首页> 外文期刊>Materials Science and Engineering. B, Solid-State Materials for Advanced Technology >Preparation and magnetic properties of Zn-Cu-Cr-Sm ferrite via a rheological phase reaction method
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Preparation and magnetic properties of Zn-Cu-Cr-Sm ferrite via a rheological phase reaction method

机译：流变相反应法制备Zn-Cu-Cr-Sm铁氧体及其磁性能

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摘要

Nanocrystalline Zn_(0.6)Cu_(0.4)Cr_(0.5)Sm_xFe_(1.5-x)O_4 (x = 0.000, 0.025, 0.050, 0.075, 0.100) powders were prepared by a rheological phase reaction method. The obtained powders were characterized by powder X-ray diffractometer (XRD), transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The results indicated that ferrite samples had the single-phase spinel at low Sm content. Particle sizes calculated from Scherrer's formula decreased with increasing Sm content for the samples, which are consistent with the results obtained by TEM. The magnetic properties of Zn_(0.6)Cu_(0.4)Cr_(0.5)Sm_xFe_(1.5-x)O_4 ferrites were strongly affected by Sm content. The saturation magnetization decreased, while coercivity increased with increasing of Sm content.
机译：通过流变相反应方法制备了纳米晶体Zn_（0.6）Cu_（0.4）Cr_（0.5）Sm_xFe_（1.5-x）O_4（x = 0.000、0.025、0.050、0.075、0.100）粉末。用粉末X射线衍射仪（XRD），透射电子显微镜（TEM）和振动样品磁强计（VSM）对所得粉末进行表征。结果表明，铁素体样品具有低Sm含量的单相尖晶石。通过Scherrer公式计算出的粒径随样品中Sm含量的增加而减小，这与通过TEM获得的结果一致。 Zn_（0.6）Cu_（0.4）Cr_（0.5）Sm_xFe_（1.5-x）O_4铁氧体的磁性能受Sm含量的强烈影响。随着Sm含量的增加，饱和磁化强度降低，矫顽力提高。

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