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Electromagnetic characteristics and microwave magnetism of Fe46Co44B10/SiO2 nano-multilayers DENG Lian-wen(邓联文)1,2, HUANG Bai-yun(黄伯云)1, LIU Wen-sheng(刘文胜)1, ZHOU Ke-sheng(周克省)2, YANG Bing-chu(杨... be applied in the field of micromagnetic devices or anti-interference of electromagnetic wave. Key words: Fe46Co44B10/SiO2 nano-multilayers; magnetron sputtering; electromagnetic characteristics; complex......
and tanδm values, respectively. The composite with ferrite content of 15% shows better electromagnetic wave absorbing property with minimum reflection loss of -23.4 dB, and the bandwidth of -8 dB is 5.73 GHz. Key words: nickel ferrite; polyaniline; electromagnetic properties; reflection loss NiFe2O4是一种重要的铁氧体,它具有较高的饱和磁化强度,矫顽力和较高的居里温度,优良的化学稳定性和耐腐蚀性,已被广泛地应用在高频磁记录,微波器件和电磁隐身等领域[1-2]. 导电高分子与无机雷达吸波材料相......
with low reflectivity and broadband. Key words: hydrothermal reaction; Fe3O4; microwave absorption; electromagnetic loss 铁氧体既具有亚铁磁性又有介电性能,能同时产生介电损耗和磁损耗,是目前研究较多且比较成熟的吸波材料.但铁氧体吸波材料的主要缺点是密度较大,单一组分的铁氧体吸收... frequency and the absorption bandwidth less than -10 dB is 7.9 GHz after hydrothermal growth of 12 h. The microwave absorption is caused by magnetic loss mainly and dielectric loss secondly in the low......
Combustion Synthesis, Character and Electromagnetic Properties of Nano-Sized La0.8Sr0.2FeO3 Perovskite Li Ji1,Sun Jie1,Tan Yong1 (1.School of Environmental and Chemical Engineering, Shenyang Ligong... salts in the process of gelation. The nanocrystalline had dielectric loss in the microwave frequency range of measurement. Key words:La0.8Sr0.2FeO3 nanocrystalline; sol-gel auto-combustion; microwave......
]. Camless technologies which often refer to an electromagnetic actuator can not only decrease the friction loss, but also realize fully variable valve parameters (timing, lift and valve duration) to depress the pumping loss and accomplish new thermodynamic and combustion cycle improving the engine efficiency. Friction loss of electromagnetic camless engine may be significantly reduced by removing......
J. Cent. South Univ. (2017) 24: 2114-2120 DOI: https://doi.org/10.1007/s11771-017-3620-8 Experimental investigation of particle-induced pressure loss in solid–liquid lifting pipe SONG Yue-wen(宋跃文)1... 2017 Abstract: In order to investigate the characteristics of particle-induced pressure loss in the solid–liquid lifting pipe, a series of experiments were conducted in 200 mm diameter lifting pipe......
Microstructure of in situ Al3Ti/6351Al composites fabricated with electromagnetic stirring and fluxes LI Gui-rong(李桂荣), WANG Hong-ming(王宏明), ZHAO Yu-tao(赵玉涛), CHEN Deng-bin(陈登斌), CHEN Gang(陈 刚... and K2TiF6-CaF2-LiCl components were selected as raw materials to fabricate in situ Al3Ti particulate reinforced aluminum alloy at 720 ℃ via direct melt reaction method with electromagnetic stirring (EMS......
: sol-gel method; Z-type ferrite; microwave absorbing materials; electromagnetic loss 铁氧体是一类已获得广泛应用的传统吸波材料,但进一步提高铁氧体的吸波性能及综合性能是研究热点.铁氧体包括尖晶石型,磁铅石型和石榴石型铁氧体,作为吸波材料一般以尖晶石和磁铅石型居多,而六角磁铅型铁氧体在吸收强度和频带宽度上更具优 势[1... by microwave vector network analyzer in the frequency range from 2 to 18 GHz, the reflection coefficient and loss tangent were calculated according to measurements, the microwave absorbing properties......
J. Cent. South Univ. (2017) 24: 2605-2612 DOI: https://doi.org/10.1007/s11771-017-3674-7 Transmission loss simulation based on rectangular-pulse method and experimental evaluation of acoustic.... The rectangular-pulse method based on the computational fluid dynamics approach was employed for calculating the transmission loss. Firstly, the transmission loss of the single-cavity element was simulated......
reflectance and frequency and the relationship between loss tangent and frequency were calculated from the measured data. The microwave absorbing properties and the electromagnetic loss mechanism of samples... dielectric loss and magnetic loss but the latter is more remarkable. Key words: sol-gel method; rare-earth doping; W-type barium ferrite; microwave absorbing materials; electromagnetic loss ......
