Abstract In this work, single phase Mn0.8Zn0.2Fe2O4 powders were synthesized by solution combustion method and embedded in PVA matrix by mechanical alloying. X-ray diffraction, infrared spectroscopy, electron microscopy and vibrating sample magnetometry techniques were employed for characterization of phase, cation distribution, microstructure and magnetic properties. The spongy microstructure of as-combusted Mn0.8Zn0.2Fe2O4 powders collapsed and particles disintegrated during ball milling and transformed to bulky microstructure in the presence of PVA. The higher coercivity of milled Mn0.8Zn0.2Fe2O4/PVA composites than that of milled Mn0.8Zn0.2Fe2O4 powders was attributed to their smaller crystallite size. However, the saturation magnetization decreased from 69 ± 3 to 58 ± 3 emu/g in milling, due to the residual lattice strain as well as the decrease of crystallite size.

中文翻译：

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Mn 0.8 Zn 0.2 Fe 2 O 4 /PVA 复合材料的结构和磁性能

摘要 本工作采用固溶燃烧法合成单相Mn0.8Zn0.2Fe2O4粉末，并通过机械合金化嵌入PVA基体中。X 射线衍射、红外光谱、电子显微镜和振动样品磁力计技术被用于表征相、阳离子分布、微观结构和磁性能。在球磨过程中，燃烧后的 Mn0.8Zn0.2Fe2O4 粉末的海绵状微观结构坍塌，颗粒分解，并在 PVA 存在下转变为块状微观结构。研磨后的 Mn0.8Zn0.2Fe2O4/PVA 复合材料的矫顽力高于研磨后的 Mn0.8Zn0.2Fe2O4 粉末，这归因于它们较小的微晶尺寸。然而，在研磨中饱和磁化强度从 69±3 下降到 58±3emu/g，