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首页> 外文期刊>Journal of Materials Science >Effects of nanocrystalline ferrite particles on densification and magnetic properties of the NiCuZn ferrites
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Effects of nanocrystalline ferrite particles on densification and magnetic properties of the NiCuZn ferrites

机译：纳米晶铁氧体颗粒对NiCuZn铁氧体致密化和磁性能的影响

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摘要

Effects of nanocrystalline ferrite particles addition on densification behavior and magnetic properties of the NiCuZn ferrites were investigated. It was confirmed that nanocrystalline ferrite particles enhanced densification of the samples obviously. The reason was attributed to the nanocrystalline particles, which spread around the micron-sized ferrite particles, increased contacting area and inter-diffusion of the particles. When the amount of nanocrystalline particles addition reached to 30 wt%, the samples obtained an approximate densification behavior as the 1.5 wt% Bi2O3 added samples. Due to relatively bigger grain size, higher sintering density and no different chemical composition sintering aids added, the sample with 30wt% nanocrystalline ferrite particles got the highest permeability and relatively high Q-factor when sintered at 900.
机译：研究了添加纳米晶铁氧体颗粒对NiCuZn铁氧体的致密化行为和磁性能的影响。证实了纳米晶铁氧体颗粒明显增强了样品的致密化。原因归因于纳米晶体颗粒，其散布在微米尺寸的铁氧体颗粒周围，增加了颗粒的接触面积和相互扩散。当纳米晶体颗粒的添加量达到30重量％时，样品获得了与1.5重量％的Bi 2 O 3添加样品近似的致密化行为。由于相对较大的晶粒尺寸，较高的烧结密度和没有添加不同化学组成的烧结助剂，当在900℃烧结时，具有30wt％纳米晶铁氧体颗粒的样品具有最高的磁导率和相对较高的Q因子。

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