Results 31 to 40 of about 671,099 (94)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The growing deployment of high‐frequency electronic systems has intensified the demand for high‐performance microwave absorption materials. In this work, we developed La‐V co‐substituted barium hexaferrites, Ba1‐xLaxFe11.9V0.1O19 (BLFVO), via a sol‐gel route.
Zhihui Yang +7 more
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Structural Modulation of Magnetic Softness in Fe‐Based Amorphous Alloys via Pulse Current Training
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Fe‐based amorphous alloys, despite their intrinsically low magnetocrystalline anisotropy, suffer from quasi‐dislocation dipoles and localized stress fields that impede domain‐wall motion and increase coercivity. Here, we introduce pulse current training (PCT) as an energy‐efficient technique to overcome these limitations in a Fe76Si9B10P5 ...
Shumin Ye +13 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT In recent years, materials capable of achieving efficient electromagnetic wave (EMW) absorption over a broad frequency range have attracted widespread attention. Such materials are not only significant in mitigating electromagnetic interference and pollution caused by the extensive use of electronic devices but also demonstrate outstanding ...
Maoxia Lu +7 more
wiley +1 more source
, 2013 一种基于柔性支撑技术的电磁式微力试验机的检验方法，该方法用于检测所述电磁式微力试验机的准静态性能，该方法包括：对所述试验机位移灵敏度及其线性度、位移的量程、分辨力、噪声水平的检测；对所述试验机载荷灵敏度及其线性度、载荷的热稳定性、量程、分辨力、噪声水平；对所述试验机的磁缸的磁场非均匀性；对所述试验机的机架刚度和支撑弹簧垂直刚度及其线性度等性能的检测；确定各项性能检验顺序为：位移检验→载荷检验→支撑弹簧垂直刚度检验；考虑所述试验机的几个自身因素在检验过程中带来的影响，并通过合理手段排除影响 ...
郇勇, 彭光健, 张泰华
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The rapid expansion of data‐intensive applications has highlighted the fundamental limitations of traditional CMOS‐based von Neumann architectures, particularly in terms of power efficiency, latency, and flexibility. Spin logic devices utilizing spin–orbit torque (SOT) present a promising pathway for nonvolatile, low‐power, and in‐memory ...
Ke‐Yi Wu +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
, 1979 本文提出了用待定电极壁边值并分区衔接的方法,完整地求解了环管中部分电极单极机的磁流体力学一维流动问题.做为两个特例,研究了环线电极和通常的全电极结构的单极机.对一些典型参数下的流场和感应磁场的分布进行了数值计算.与差分计算的结果比较,在数值和分布两方面都相当符合.着重研究了弥散效应及哈特曼边界层这些磁流体力学的特征现象,并用这些概念去讨论单极机的内部流动现象.结果表明,部分电极结构可以增加环管的流量,改善哈特曼边界层,控制二次流的发展 ...
胡文瑞
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, 2015 本发明提供了一种磁扭型磁电传感器。该磁电传感器采用单片压电片，将该单片压电片电极进行分割处理，形成两段以上彼此间隔的小压电区；然后将各段小压电区沿厚度方向进行电极化处理，相邻的两段小压电片的极化方向相反，极化完毕后将极化方向相同的各段小压电片相连作为一输出端，得到两个输出端；工作状态时，磁铁在外加磁场作用下产生磁扭力，通过界面接触带动各段小压电区产生弯曲变形，从而在两个输出端产生电压输出。与现有技术相比，该结构的磁电传感器一方面避免了采用双片电压片时产生界面滑移而导致失效的问题，另一方面降低了制作成本 ...
刘宜伟 +4 more
core
, 2017 本实用新型提供一种永磁力矩电机的定子，通过密封材料将各定子齿间的槽口密封，使定子齿部呈环形整体结构，定子轭部呈另一整体结构，二者彼此可分离，因此在定子装配工艺中，将各电枢绕组装配在相应的定子齿上后可通过卡槽插合或者扣合直接将二者连接在一起，工艺简单，成本低、效率高，便于模块化生产。另外，当定子铁心选用纳米晶软磁合金材料或高牌号硅钢材料时有利于降低电机损耗；当转子永磁体为铁心支撑，切向充磁永磁体和径向充磁永磁体交替设置在铁心的工作气隙侧表面时 ...
孙贤备 +5 more
core
, 1981 1.激波管中的流动 我们现在考虑如图1所示的电磁激波管。放电之后,有一个强激波向右传播,后面是一个电流层,它分开了等离子体与磁场。1959年,Wright和Black曾详细地研究了在放电初期电磁激波管中的流动。在假定电流i与时间t成正比之后,他们求出了一个相似解。这时电流层以等加速度a向右方运动,可以预料,这将会发生Rayleigh-Taylor不稳定性,由于加速度a大,不稳定性增长率ω也很大。 我们令电流面以等加速度a向右运动(见图2)。电流面的坐标x_0(t)与速度v_0(t)
徐复
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