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首页> 外文期刊>Materials Chemistry and Physics >Effects of MoO_3 and WO_3 additives on densification and magnetic properties of highly permeable NiCuZn ferrites
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Effects of MoO_3 and WO_3 additives on densification and magnetic properties of highly permeable NiCuZn ferrites

机译：MoO_3和WO_3添加剂对高磁导率NiCuZn铁氧体的致密化和磁性能的影响

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摘要

In order to obtain high initial permeability and high Curie temperature, effects of MoO_3 and WO_3 additives on densification and magnetic properties of the NiCuZn ferrites were investigated. It was confirmed that with proper content, both MoO_3 and WO_3 additives could promote grain growth obviously and lead to increase of bulk density and initial permeability. Tungsten ions had a stronger trend to incorporate into lattice of the ferrites than the molybdenum ions, so more content of WO_3 was necessary to obtain peak bulk density and initial permeability. However, a sharper decrease of Curie temperature was observed for the WO_3 added specimens. The MoO_3 added specimen got peak initial permeability (which was 2480) with MoO_3 of 0.12 wt%, and the Curie temperature could keep at 118℃. The WO_3 added specimen got peak initial permeability (which was 2530) with WO_3 of 0.16 wt%, and the Curie temperature fell to 110℃.
机译：为了获得较高的初始磁导率和较高的居里温度，研究了MoO_3和WO_3添加剂对NiCuZn铁氧体的致密化和磁性的影响。可以肯定的是，MoO_3和WO_3添加剂均具有适当的含量，能明显促进晶粒长大，并导致堆积密度和初始磁导率的增加。钨离子比钼离子具有更强的掺入铁素体晶格的趋势，因此需要更多的WO_3含量才能获得峰体积密度和初始磁导率。然而，观察到WO_3添加的样品的居里温度急剧下降。添加的MoO_3样品的初始磁导率峰值为2480，MoO_3为0.12 wt％，居里温度可以保持在118℃。加入WO_3的样品的初始渗透率达到峰值（2530），WO_3为0.16 wt％，居里温度降至110℃。

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