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to the experimental procedures, as shown in Figure 2. The major testing parameters of NMR included the dominant frequency (2.1 MHz), echo spacing (TE=0.6 ms), polarization time (TW=6 s), scanning times......
数先缓慢升高后迅速降低. 图9 天然硫砷铜矿不同电位下氧化后表面相中各个元素含量和摩尔比 Fig. 9 Mole fraction and mole ratio of natural enargite after polarization at various applied potentials in electrolyte solution 为了更直观地对比不同电位氧......
. A polarization- independent and broadband microwave metamaterial absorber based on three-dimensional structure [J]. Journal of Modern Optics, 2018, 65(13): 1521-1528. DOI: 10.1080/ 09500340.2018.1455911.... Lin, YANG Zhen-yu, ZHAO Ming, ZHENG Yu, DUAN Ji-an, YUAN Xiu-hua. Polarization-insensitive resonances with high quality-factors in meta-molecule metamaterials [J]. Optics Express, 2014, 22(12......
holographic storage in doubly doped LiNbO3:Fe:Cu crystals[J]. Chinese Science Bulletin, 2002, 47(20): 1704-1707. [5] LIU Y, LI Z, ZHANG J, WU A, WANG J. The optical polarization properties...-polarization. The total magnetism of Fe doped LiNbO3 is 8.54 μB, which is attributed to the spin-polarization of 3d orbital of Fe, and the magnetism of Fe atom is 3.40 μB. The electronic structures......
with the electromagnetic field as temperature increased and reduced the polarization in the range from room temperature to 200 °C. The value of the dielectric constant varied from 3.3995 at 200 °C to 3.5983 at 800 °C......
的情况下,依然呈现出较强的耐腐蚀性,说明在空化泡溃灭产生的应力场作用下,试样的浅表层出现一定程度的硬化现象,提高了耐腐蚀性. 图13 铝青铜试样的动电位极化曲线 Fig. 13 Potential polarization curves of aluminum bronze samples 表2 空蚀和未空蚀铝青铜试样的自腐蚀电位和自腐蚀电流密度 Table......
eventually destroys the electrode structure and causes serious polarization [21-24]. Thus, the electrochemical performance of the stibnite ore should be further improved. Figures 3(a, b) present the SEM......
of polarization curves of AZ91 Mg alloy before and after adding rare earth 2.2.3 稀土对AZ91镁合金腐蚀产物膜组成和结构的影响 图4 镁合金表面腐蚀产物的XRD谱 Fig. 4 XRD patterns of corrosion products on surface of Mg alloy......
heat-treated temperatures and holding times under the applied load of 10 N and three-dimensional surface morphology of wear scar 图7 非晶涂层在人工海水溶液中动电位极化曲线图 Fig. 7 Potentiodynamic polarization......
samples with 0.1 mol/L NaOH in the presence of methyl orange. The electrolyte was agitated with a magnetic stirrer (200 r/min). Lead anode and aluminum cathode were used (each 3 cm × 3 cm). Cathodic... initiated fast alkalization of the electrolyte adjacent to the cathode surface. It favored hydrolysis of zinc ions: Zn2++2OH-=Zn(OH)2  ......