铁氧体

Then different amount of rare earth cerium was doped in the both kinds of ferrite.

实验结果表明：两个复合铁氧体体系的材料均有一定的微波吸收特性，并且纳米镍铜铁氧体的微波吸收特性明显优于纳米锰锌铁氧体。

So the study of NiCuZn ferrite materials is an important way.

所以研究NiCuZn铁氧体材料是软磁铁氧体研究的一个重要方向。

So the study of high permeability on Mn-Zn ferrite materials is an important way.

所以研究高磁导率Mn-Zn铁氧体材料是软磁铁氧体研究的一个重要方向。

The material series include JP series—MnZn power ferrite used for switching power supplies and other power conversion applications, JV series—MnZn power ferrite used for fly-back transformers in CRT color display systems, JH series—MnZn high permeability ferrite used for digital and analog communication and EMC field, JL series—MnZn low loss ferrite used for traditional communication filters and JR series—NiZn ferrite used for radio frequency fields.

材料方面包括用于开关电源和其它功率转换领域的锰锌功率铁氧体 JP 系列，用于 CRT 彩色显示系统回扫变压器的锰锌功率铁氧体 JV 系列，用于数字和模拟通讯及电磁兼容领域的锰锌高磁导率铁氧体 JH 系列，用于传统通讯滤波器的锰锌低损耗铁氧体 JL 系列和用于射频领域的镍锌铁氧体 JR 系列。

The results indicated that the nanocomposites under applied magnetic field exhibited the hysteresis loops of...

结果表明，复合物在室温外加磁场下表现出亚铁磁性物质具有的磁滞现象，铁氧体颗粒对苯胺的聚合起到了核的作用；复合物中铁氧体与聚苯胺之间存在着比较明显的键合作用，探讨了铁氧体与聚合物分子链之间的键合机制。

Relationship between IL and relevant network parameters is presented by network theory. Network structure of EMI power line filter and its computation method for IL are discussed. Common mode and differential mode equivalent circuit model of single-phase power line filter and the high frequency distribution parameters model of filter device are established. Meanwhile, the main characters of soft ferrite are analyzed, and its implement on the EMI power line filter and its equivalent circuit model are given. According to the preceding theory, the software for IL of power line filter and the design of filter inductor are programmed. The difference between the imitative and practical results is analyzed, and the rational of the equivalent circuit model is tested.

文中应用网络理论分析了EMI电源滤波器的插入损耗与相关网络参量的关系，讨论了EMI电源滤波器的基本网络结构及其插入损耗的计算方法，建立了单相电源滤波器的共模及差模等效电路模型及滤波器件的高频分布参数模型，然后分析了软磁铁氧体材料的主要性质，讨论了软磁铁氧体在EMI电源滤波器中的应用，建立了软磁铁氧体磁芯的等效电路模型，最后根据以上理论编制了滤波器插损分析软件和滤波电感设计软件，并对软件仿真结果与实际测试结果进行了对比分析，验证了各个等效电路模型的合理性。

With the increase of MFD, much claviform cobalt ferrite nanoparticles was obtained, and the crystallization of cobalt ferrite nanoparticles became better, also the magnetic properties such as remanence magnetism, saturation magnetism and squareness ratio were increased remarkably.

试验结果表明：无磁场及磁感应强度小于2T时，纳米钴铁氧体颗粒为球形形貌；当磁感应强度大于等于4T时，有棒状纳米钴铁氧体形成；随着磁感应强度的增大，棒状纳米颗粒数量增加，纳米钴铁氧体的晶化程度提高，磁性能(Mr、Ms、Mr/Ms)也有大幅度的提高，10T时制备的纳米钴铁氧体颗粒的剩余磁化强度比无磁场下制备的钴铁氧体颗粒的剩余磁化强度增加了近15倍，饱和磁化强度提高1.44倍。

The insulation of apparatus in the power system is often broken by the very fast transient overvoltagewhich is caused by the operation of disconnector in gas insulate substation In this paper, a new idea for the suppressing VFTO by ferrite is put forward, and the characteristic of ferrite is analyzed.

GIS中隔离开关操作时产生的特快速暂态过电压对电力系统及其设备的绝缘具有巨大的破坏力，本文提出了采用铁氧体来抑制GIS中隔离开关操作时产生VFTO的方法，分析铁氧体抑制VFTO的优点，对VFTO的抑制效果进行了实验研究和仿真分析，探讨了具有理想抑制效果的铁氧体参数的具体要求和对理想抑制参数的铁氧体尺寸的估算方法。

Metallic nickel powder is taken as a matrix; a chemical method is adopted to prepare a product required by cladding ferrites on the surface of the nickel powder; the mass ratio of the ferrites to the nickel compound powder is between 1 to 5 and 1 to 0.01; the grain diameter of the nickel powder is 0.5 to 5 microns; the ferrites are ferrites of spinel type or ferrites of magneto plumbite type.

以金属镍粉作为基体，采用化学方法在镍粉表面包覆铁氧体层制得所需产品，铁氧体与镍复合粉体的质量比为1∶5～1∶0.01，镍粉粒径为0.5～5μm，铁氧体为尖晶石型铁氧体或磁铅石型铁氧体。

The result shows that the mechanical strength and the thermal stability of bonded hybrid magnet are improved markedly with addition of ferrite in Nd-Fe-B powder,whereas its magnetic performance is reduced slightly.And the temperature coefficient of coercivity with zero is obtained in hybrid magnet with 87% ferrite and 13% HDDR Nd-Fe-B.Due to the magnetic dipole field between the differe...

实验结果表明：随着铁氧体磁粉的加入，复合磁体的磁性能虽略有降低，但其力学性能及热稳定性均有大幅度改善，特别是在铁氧体含量为87%时，复合磁体内禀矫顽力温度系数为零；不同磁粉间静磁场的存在，使得复合磁体在铁氧体含量低于70%时，其磁性能大于平均值，而大于70%时则小于平均值。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。