查询词典 ferrite

Accelerated cooling (60℃/s) to 400℃ refines the allotriomorphic ferrite grain but retards the nucleation of intragranular ferrite with its distribution on prior austenite grain boundary as well as the volume fraction of bainite increased, and the strength increased but the elongation decreased and yield ratio became much higher on the steel.

当冷速增加到60℃/s且卷取温度为400℃左右时，铁素体在晶内形核受到抑制，铁素体沿原奥氏体晶界分布，晶粒得到细化，贝氏体体积分数增加，强度有较大的提高，但延伸率较低，屈强比较高。

Contrastive experiment is done to obtain an ameliorative technique for decreasing ferrite content and improving ferrite shape and distribution.

以获得比较理想的铁素体含量并改善铁素体形态、分布的工艺方法。

It was shown that, when without magnetic field or MFD lower than 2Tesla, spheric cobalt ferrite nanoparticles was obtained, and when MFD was equal or above 4Tesla, claviform cobalt ferrite nanoparticles appeared.

在强磁场下采用共沉淀-相转化法制备出了纳米级的钴铁氧体颗粒，通过SEM，XRD和VSM等分析手段，考察了磁感应强度对纳米钴铁氧体形貌及性能的影响规律。

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。

Then the fired kinetics of the ferrite were analyzed to give directions to densify the ferrite under low fired temperature.

然后又从物质迁移的角度探讨了促进 NiCuZn 铁氧体低温烧结和致密化的有效途径。

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。

The adopted preparation method comprises the following steps: paper fibre or porous organism is used as a hard template; CoFeFe-LDH is synthesized in the surface and holes of the hard template and roasted to prepare the magnetic cobalt iron ferrite; as the function for fixing the houghite position is produced by the obstruction and adsorption of the hard template, the occurrence of the sintering phenomenon is greatly avoided, thereby preparing the magnetic cobalt iron ferrite with a consistent shape and even granularity.

所采用的制备方法是以纸纤维或多空有机物为硬模板、在硬模板表面及孔内合成Co 2 Fe 2 Fe 3 -LDH，再经焙烧得到磁性钴铁铁氧体，由于硬模板的阻隔和吸附而产生的水滑石位置固定作用，极大地避免了烧结现象发生；从而得到形状一致、粒度均匀的钴铁铁氧体。

When the pH value was about 7.0, and the settling time was 30min, and the dosage was 100mg/L, the removal efficiency of arsenic can achieve 80% as polysilicate ferrite and polysilicate ferrite aluminum being used as coagulation reagents.

在pH 值为7，沉降时间为30min，混凝剂投加量达100mg/L时，聚硅酸硫酸铁、聚硅酸硫酸铁铝、聚硅酸氯化铁和聚硅酸氯化铁铝对砷的去除率达80%以上。

Through the microstructure analysis, it is found that there are ferrite, spiculate bainite in base material, weld metal area and heat-affected zone, and there is much dispersed Fe3C on ferrite and bainite, which indicates that weld joints of steel B610CF have better strength and toughness.

金相分析表明，焊接接头的母材区、焊缝区和热影响区组织均为铁素体和下贝氏体，在铁素体和贝氏体上还弥散分布着渗碳体，说明焊接接头的强度和韧性都较好。

It is necessary for two kinds of controlled cooling processing to possess air cooling phase to separate ferrite from austenite, and, by means of this, polygonal ferrite forms, the carbon concentration of the retained austenite untransformed increases and results in the stability of retained austenite increased.

在二种冷却方式轧后控冷的过程中，必须有一个α/γ二相分离的空冷阶段，使多边形铁素体形成，未相变奥氏体中碳浓度增高，其稳定性增强。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。