Results 11 to 20 of about 1,276,934 (165)
, 2005 研究了脉冲电源以脉冲电晕放电方式向反应器注入能量时的时间不均匀特性，阐述有效时间、有效平均功率等概念后分析了单针型针板式反应器中脉冲电晕放电功率与电流保持一致的时间特性。实验测得脉冲电源的单次脉冲时间为0．01～0．1 s，平均功率为5～30W；有效时间约10μs，有效平均功率为15-60kW，比平均功率大3个数量级。有效时间内脉冲电晕放电过程以较大功率向反应器注入能量，有效平均功率是表征有效时间内脉冲电晕能量有效注入过程的平均量 ...
黄海涛, 王宁会, 李利新, 陈勇
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, 2023 针对微阴极电弧推力器(μ-CAT)应用开展了真空沿面电弧放电过程和产物特性研究，结合放电参数、辐射光谱和高速图像诊断，研究电脉冲作用下放电等离子体形成和演变过程，分析不同磁场下等离子体通道和羽流时空演化规律；收集喷溅产物进行形貌分析，对比不锈钢和钛电极下放电烧蚀产物的宏、微观特性。结果表明，放电起始于“电极-真空-涂层”的三结合点，随后涂层局部放电形成沟通两电极的沿面放电通道；外施100m T量级的磁场能够改善放电连续性和羽流形貌(发光截面可达无磁场时的2倍)；放电结束后 ...
韩若愚 +5 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of structurally stable anodes with high capacities and long cycle lives is essential for the development of potassium–ion batteries. Conversion‐type anodes have attracted considerable attention in potassium–ion batteries (PIBs) due to their high theoretical capacities.
Jeong Ho Na +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT LiBH4 has drawn significant attention due to its high theoretical hydrogen storage capacity of 18.5 wt%, yet its practical application is hindered by the harsh dehydrogenation conditions. This paper proposes a strategy integrating ensemble learning with density functional theory (EL–DFT) for rapidly screening modified LiBH4 systems that ...
Zishan Luo +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT This study demonstrates a new strategy for modifying the boron content to address stress‐relief cracking (SRC) in the 7CrMoVTiB10.10 alloy. First, coarse‐grained heat‐affected zone (CGHAZ) specimens with different boron contents were prepared via simulated welding thermal cycles.
Dongdong Zhang +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Water pollution is becoming increasingly severe, posing a serious hazard to human health and ecological security. Therefore, it is necessary to develop rapid, sensitive, and universal analytical methods to detect residual pollutants in actual water.
Yi Xing +4 more
wiley +1 more source
Gaoya dianqi, 1996 介绍了输电导线电晕放电特性的试验方法和试验结果,研究了导线电晕放电物理过程、起始电晕及伏库特性等。试验表明不同直径导线电晕放电物理过程是不同的,输电线路中导线和其它部位的电晕放电过程也是不同的,并对今后特高压输电导线电晕特性研究提出一些看法和建议。
谢书勇, 王韵
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The protracted incubation time has long been the Achilles' heel of the promising 2LiBH4–MgH2 hydrogen storage system. Instead of the usual route‐creating heterogeneous nucleation sites to hasten MgB2 formation, we shortened both de‐ and re‐hydrogenation incubation periods by steering the Mg transformation itself.
Kai Jia +6 more
wiley +1 more source
Dianci bileiqi, 2013 由于地线导弧间隙在运行中存在放电分散性大,灭弧能力随机性强等问题,为了优化和改善330 kV和750 kV输电线路架空地线导弧间隙的放电特性和灭弧性能,对目前工程上使用的不同类型的地线导弧间隙进行了工频放电电压特性、雷电冲击伏秒特性和操作冲击伏秒特性试验以及灭弧性能试验研究。结果表明,在330 kV和750 kV系统中使用的间隙距离下,导弧间隙满足在工频过电压和操作过电压下不放电而在雷电过电压下可靠放电的要求;灭弧性能试验表明电流幅值过小或过大均会使导弧间隙灭弧时间变长,重燃率增加 ...
刘强, 郭洁, 解秀余, 张汇博
doaj