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Dielectric properties of mixed Li-Ni-Cd ferrites

机译:混合Li-Ni-Cd铁氧体的介电性能

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摘要

Ferrites with the general formula Li0.5Ni0.75-x/2Cdx/2Fe2O4 (where x = 0, 0.1, 0.3, 0.5, 0.7 and 0.9) were prepared by the standard double sintering ceramic method. X-ray diffraction analysis confirmed the single phase spinel structure of the samples. The variation of saturation magnetization (M,) was studied as a function of Cd content. The dielectric constant (epsilon') and dielectric loss tangent (tan delta) were measured at room temperature as a function of frequency in the range 100 Hz-1 MHz. These parameters decrease with increasing frequency for all of the samples. The compositional variation of and rho(DC) show an inverse trend of variation with each other.
机译:通过标准双烧结陶瓷方法制备通式为Li0.5Ni0.75-x / 2Cdx / 2Fe2O4的铁氧体(其中x = 0、0.1、0.3、0.5、0.7和0.9)。 X射线衍射分析证实了样品的单相尖晶石结构。研究了饱和磁化强度(M)作为Cd含量的函数。在室温下测量介电常数(ε')和介电损耗角正切(tanδ)作为在100Hz-1MHz范围内的频率的函数。对于所有样本,这些参数随频率增加而减小。和rho(DC)的组成变化相互之间呈反趋势。

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