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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effect of ZrO_2 addition on the microstructure and electromagnetic properties of YIG
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Effect of ZrO_2 addition on the microstructure and electromagnetic properties of YIG

机译：ZrO_2的添加对YIG组织和电磁性能的影响

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摘要

In this work, we reported the microstructure and electromagnetic properties of a series of zirconium substituted yttrium iron garnet ferrites (YCaZrIG) with iron deficiency composition of Y_(3-x)Ca_xZr_xFe_(4.93-x)O_(12) (x=0.1,0.2, 0.3, and 0.4, with electrostatic balance by Ca~(2+) substituted for Y~(3+) ions) prepared by a solid-reaction method. The addition of ZrO_2 shows no obvious influence on the phase, density and dielectric constant of YIG ferrites. When Zr addition x < 0.3, the substitution of Zr~(4+) for Fe~(3+) decreases the amount of Fe ions, increases the lattice parameter and enhances the grain growth of garnet phase. The solubility of zirconium in YCaZrIG ferrite was found to be approximately 0.3, above which excess ZrO_2 would lead to the precipitation of a second phase inside the YCaZrIG ferrite. This would inhibit the grain growth of garnet phase and cause an increase in the dielectric loss and coercivity.
机译：在这项工作中，我们报道了一系列缺铁成分为Y_（3-x）Ca_xZr_xFe_（4.93-x）O_（12）（x = 0.1， 0.2、0.3和0.4，用Ca〜（2+）代替Y〜（3+）离子实现静电平衡）。 ZrO_2的添加对YIG铁氧体的相，密度和介电常数没有明显影响。当Zr添加量x <0.3时，用Zr〜（4+）代替Fe〜（3+）会减少Fe离子的数量，增加晶格参数并增强石榴石相的晶粒长大。发现锆在YCaZrIG铁氧体中的溶解度约为0.3，高于此溶解度的过量ZrO_2将导致YCaZrIG铁氧体内部第二相的析出。这将抑制石榴石相的晶粒生长，并导致介电损耗和矫顽力的增加。

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