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首页> 外文期刊>IEEE Transactions on Magnetics >Effect of CaCO3and V2O5Composite Additives on the Microstructure and Magnetic Property of MnZn Ferrites
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Effect of CaCO3and V2O5Composite Additives on the Microstructure and Magnetic Property of MnZn Ferrites

机译：CaCO 3 和V 2 O 5 复合添加剂对MnZn铁氧体组织和磁性能的影响

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摘要

Manganese-zinc (MnZn) ferrites have important application in convertors and switching mode power supplies. The core losses (PL) of MnZn ferrites have serious influence on the performance of power conversion devices. It is worth emphasizing that reducing the core losses at high frequency is of great significance for the miniaturization and integration of power conversion devices. Here in this paper, MnZn ferrites have been fabricated by the method of solid-state reaction, and the effect of CaCO3and V2O5co-additives on the microstructure and magnetic property has been investigated. This paper illustrated the competition mechanism of grain growth, which originated from the hindrance effect of CaCO3and acceleration effect of V2O5, as well as the effect of CaCO3and V2O5on core losses by means of loss separation method. In addition, as for the MnZn ferrite sample with 0.1 wt% CaCO3and 0.01 wt% V2O5co-additives, core losses were suppressed to 46 and 664 kW/m3corresponding to 3 MHz 10 mT and 3 MHz 30 mT at 25 °C, respectively. The state-of-the-art MnZn ferrites with ultralow core losses own potential application for high-frequency power conversion devices.
机译：锰锌（MnZn）铁氧体在转换器和开关模式电源中具有重要的应用。核心损失（P n L n）对功率转换器件的性能有严重影响。值得强调的是，降低高频下的磁芯损耗对于功率转换器件的小型化和集成化具有重要意义。在本文中，通过固相反应方法制备了MnZn铁氧体，并且CaCO n 3 n和V n 2 nO n 5 nco-有关微观结构和磁性的添加剂财产已经过调查。本文阐述了谷物生长的竞争机制，该竞争机制源于CaCO n 3和V n 2 nO n 5 n，以及CaCO的效果 n 3 nand V n 2 nO n 5 非核心损失（采用损失分离方法）。另外，对于具有0.1 wt％的CaCO n 3 n和0.01 wt ％V n 2 nO n 5 nco添加剂，核心损失被抑制为46，而664 kW / m n <补充xmlns：mml = “ http：//www.w3.org/1998/Math/MathML ” xmlns：xlink = “ http://www.w3.org/1999/xlink “> 3 n分别对应于25°C下3 MHz 10 mT和3 MHz 30 mT。具有超低磁芯损耗的最新MnZn铁氧体在高频功率转换设备中具有潜在的应用前景。

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  • 来源
    《IEEE Transactions on Magnetics》 |2018年第11期|1-7|共7页
  • 作者

    Guohua Wu; Zhong Yu; Zhangdong Tang; Ke Sun; Rongdi Guo; Xin Zou; Xiaona Jiang; Zhongwen Lan;

  • 作者单位

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    China Aerospace Components Engineering Center, Beijing, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ferrites; Additives; Core loss; Magnetic cores; Microstructure; Magnetic properties; Powders;

    机译：铁氧体;添加剂;铁损;磁芯;微观结构;磁性能;粉末;

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