Abstract Samples of Ni0.6Zn0.3Co0.1NdxFe2-xO4 (0.00≤x≤0.10) ferrites were synthesized by the sol-gel auto-combustion method and microwave sintering technology. The effects of Nd substitution on the crystal structure, magnetic, and electrical properties have been investigated. The XRD results showed that the main phase of sintered samples was a standard spinel structure. when x>0.02, the second phase appeared in the sintered samples, which led to the phenomenon that the lattice constant of the sample increased and then decreased. Overall, the saturation magnetization of the samples showed a downward trend, and the value of coercivity increased with the amount of substitution. In terms of electrical performance, the dielectric constant of the samples showed an overall increasing trend with the amount of substitution after a sharp drop in the low frequency band and tended to be stable in the high frequency band. At x=0.02, the ferrite sample exhibited the lowest dielectric constant (e´, 41.63), the highest dc resistivity (ρ, 4.973×106 Ω∙m), relatively small coercivity (Hc, 20.878 Oe) and relatively high saturation magnetization (Ms, 79.214 emu/g).

中文翻译：

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Nd取代对NiZnCo铁氧体结构、磁性和电学性能的影响

摘要 采用溶胶-凝胶自燃法和微波烧结技术合成了Ni0.6Zn0.3Co0.1NdxFe2-xO4(0.00≤x≤0.10)铁氧体样品。已经研究了 Nd 取代对晶体结构、磁性和电学性质的影响。XRD结果表明烧结样品的主相为标准尖晶石结构。当x>0.02时，烧结样品中出现第二相，导致样品晶格常数先增大后减小的现象。总体而言，样品的饱和磁化强度呈下降趋势，矫顽力值随着取代量的增加而增加。在电气性能方面，样品的介电常数在低频段急剧下降后随取代量的增加总体呈上升趋势，在高频段趋于稳定。在 x=0.02 时，铁氧体样品表现出最低的介电常数 (e´, 41.63)、最高的直流电阻率 (ρ, 4.973×106 Ω∙m)、相对较小的矫顽力 (Hc, 20.878 Oe) 和相对较高的饱和磁化强度 (女士，79.214 鸸鹋/克）。