Influence of Forming Pressure on Properties of Yttrium Iron Garnet Ferrite

doi:10.1007/s12204-022-2478-6

Abstract

Abstract: The Ca-Sn co-substituted yttrium iron garnet (YIG) ferrite materials were prepared by the traditional oxide solid-state reaction method, and the influence of forming pressure on the density, morphology and magnetic properties of YIG ferrite was systematically studied. The results show that the density of YIG ferrite green body increases with the increase of the forming pressure, while the density of its sintered body shows a trend of first increasing and then decreasing. At the same time, the ferromagnetic resonance (FMR) linewidth of YIG sample first decreases and then increases. Meanwhile, the effects of forming pressure on the saturation magnetization, remanence and coercivity of the sample can be ignored. This study proves that the density and FMR linewidth of YIG materials can be controlled by regulating the forming pressure and the best performance is obtained for the sample prepared under a forming pressure of 5 MPa.

Key words: yttrium iron garnet (YIG) ferrite, oxide solid-state reaction method, forming pressure, density, ferromagnetic resonance (FMR) linewidth

摘要： 通过传统氧化物固相烧结法制备了Ca²⁺、Sn⁴⁺共取代钇铁石榴石铁氧体材料，系统研究了成型压力对钇铁石榴石铁氧体密度、磁性能以及微观形貌等性能的影响。结果表明，钇铁石榴石铁氧体的生胚密度随着成型压力的提升不断增加，烧结密度则呈现先增大后减小的趋势，同时样品铁磁共振线宽则先下降后上升，成型压力对材料的饱和磁化强度、剩余磁化强度和矫顽力影响较小。研究证明，通过改变成型压力可以实现对材料密度以及铁磁共振线宽的调控，在5 MPa的成型压力下制备的样品性能最优。

关键词: 钇铁石榴石铁氧体；氧化物固相烧结法；成型压力；密度；铁磁共振线宽

CLC Number:

TM 277+.3

CHEN Zhigang (陈志刚), LI Haihua∗ (李海华). Influence of Forming Pressure on Properties of Yttrium Iron Garnet Ferrite[J]. J Shanghai Jiaotong Univ Sci, 2023, 28(2): 207-212.

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