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摘要 ：
Ag元素对Ni-7at.%W合金基带织构形成的影响
关键词 ：
Ni7W合金基带 Ni7W合金基带 涂层导体 涂层导体 Ag元素 Ag元素 织构 织构
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| GB/T 7714 | 高忙忙 , 苏圣尧 , 张方圆 et al. Ag元素对Ni-7at.%W合金基带织构形成的影响 [J]. | 高忙忙 , 2021 , 47 (1) : 5-10 . |
| MLA | 高忙忙 et al. "Ag元素对Ni-7at.%W合金基带织构形成的影响" . | 高忙忙 47 . 1 (2021) : 5-10 . |
| APA | 高忙忙 , 苏圣尧 , 张方圆 , 赵旭 , 马麟 , 索红莉 et al. Ag元素对Ni-7at.%W合金基带织构形成的影响 . | 高忙忙 , 2021 , 47 (1) , 5-10 . |
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摘要 ：
MgB_2超导体具有优良的超导电性能,受到了极大的关注。用不同方法制备的MgB_2超导体,其超导电性能也不尽相同。常压扩散法使用的设备简单且操作方便,制备出的MgB_2超导电性能也较为优越。本文系统地介绍了属于扩散法的渗透生长法、渗透胶囊法、液相Mg扩散法和气相扩散法并对其优缺点进行了比较,重点介绍了液相Mg扩散法在超导电缆、电磁屏蔽和磁悬浮等方面的应用。根据对各种合成方法的比较及其相关的应用,展望了扩散合成法的发展趋势。
关键词 ：
评述 评述 特种功能无机非金属材料 特种功能无机非金属材料 扩散合成法 扩散合成法 强电应用 强电应用 MgB_2超导体 MgB_2超导体
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| GB/T 7714 | 赵万里 , 索红莉 , 刘敏 et al. 用扩散法制备MgB_2块材的研究进展 [J]. | 材料研究学报 , 2021 , 35 (06) : 411-418 . |
| MLA | 赵万里 et al. "用扩散法制备MgB_2块材的研究进展" . | 材料研究学报 35 . 06 (2021) : 411-418 . |
| APA | 赵万里 , 索红莉 , 刘敏 , 马麟 , 戴银明 , 张子立 . 用扩散法制备MgB_2块材的研究进展 . | 材料研究学报 , 2021 , 35 (06) , 411-418 . |
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摘要 ：
Ag元素能够使Ni和Ni-5at.%W合金基带中的晶粒形貌呈细长状,从而提升超导层电流的传输能力.研究了Ag在高W含量的NiW合金基带(>5at.%W)中对织构的影响机制,为后续调控晶粒形貌打下基础.研究表明:Ag使基带中S取向的体积分数降低,进而影响了再结晶后基带中立方晶体型织构的形成.通过在轧制变形量为90%时引入550℃保温2 h的中间热处理,可以使冷轧基带的形变因子R由0.72提升至1.05,从而增加铜型织构的体积分数,并使得基带中形变后的立方晶体的取向增大65%.最终,经过再结晶热处理获得了表面立方晶体型织构的体积分数为96.8%的Ni-7at.%W-0.01at.%Ag合金基带.
关键词 ：
Ag元素 Ag元素 Ni7W合金基带 Ni7W合金基带 涂层导体 涂层导体 织构 织构
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| GB/T 7714 | 高忙忙 , 苏圣尧 , 张方圆 et al. Ag元素对Ni-7at.%W合金基带织构形成的影响 [J]. | 兰州理工大学学报 , 2021 , 47 (01) : 5-10 . |
| MLA | 高忙忙 et al. "Ag元素对Ni-7at.%W合金基带织构形成的影响" . | 兰州理工大学学报 47 . 01 (2021) : 5-10 . |
| APA | 高忙忙 , 苏圣尧 , 张方圆 , 赵旭 , 马麟 , 索红莉 . Ag元素对Ni-7at.%W合金基带织构形成的影响 . | 兰州理工大学学报 , 2021 , 47 (01) , 5-10 . |
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摘要 ：
为了解决哈氏(Hastelloy C-276)合金基带表面粗糙度过大造成不平整的问题,采用溶液沉积平整化技术在哈氏合金表面制备Y_2O_3非晶薄膜来满足使用要求.通过研究前驱液的稳定性和浓度、热处理温度和涂覆次数对表面粗糙度的影响规律,同时采用高低浓度相结合的方法涂覆非晶薄膜来提高涂覆效率,结果表明:先使用高浓度0.40 mol/L涂覆6次,再使用低浓度0.10 mol/L涂覆6次,获得了表面平均粗糙度R_a值为0.65 nm(5μm×5μm)高表面质量的带材,涂覆效率相比使用单一溶度提高了近30%.前驱液浓度越高,溶液粒径越大,前期涂覆效果更佳,后改用低浓度粒径小的前驱液进行表面精修,可以大...
关键词 ：
原子力显微镜 原子力显微镜 哈氏合金 哈氏合金 溶液沉积平整化 溶液沉积平整化 溶液沉积法 溶液沉积法 表面粗糙度 表面粗糙度 非晶Y_2O_3薄膜 非晶Y_2O_3薄膜
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| GB/T 7714 | 王毅 , 闻家成 , 郝善鹏 et al. SDP法制备非晶Y_2O_3薄膜用于哈氏(Hastelloy C-276)合金基带表面精修 [J]. | 北京工业大学学报 , 2021 , 47 (09) : 1029-1035 . |
| MLA | 王毅 et al. "SDP法制备非晶Y_2O_3薄膜用于哈氏(Hastelloy C-276)合金基带表面精修" . | 北京工业大学学报 47 . 09 (2021) : 1029-1035 . |
| APA | 王毅 , 闻家成 , 郝善鹏 , 李家志 , 索红莉 . SDP法制备非晶Y_2O_3薄膜用于哈氏(Hastelloy C-276)合金基带表面精修 . | 北京工业大学学报 , 2021 , 47 (09) , 1029-1035 . |
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摘要 ：
Ni-8 at % W alloy ingots were prepared using a spark plasma sintering technique. The evolution of the microstructure, cold-rolling texture, and recrystallization texture of the Ni8W alloy were studied using X-ray diffractometry and electron backscatter diffractometry techniques. The results revealed the strong influence of the initial grain size on the cube texture formation of the annealed substrates. A strong cube texture was obtained in substrates with finer initial grains. A brass-type rolling texture was formed in the final cold-rolled tape after cold rolling. The cold-rolled tape mainly consisted of S, brass, and a weak {110} < 118 & rang; texture. The cube orientation nuclei did not have a nucleation advantage at the early stage of recrystallization. Large-scale twinning was exhibited in the cold-rolled microstructure at a high annealing temperature. The cube orientation and RD (rolling direction)-cube orientation textures, which transformed from the cube twin orientation and random orientation grains, were grown immediately at almost the same rate. The cube orientation and RD-cube orientation grains grew faster than other orientation grains throughout the whole grain growth process. Finally, a strong cube texture was obtained for the Ni-8 at % W substrate after an optimized annealing process.
关键词 ：
cube texture cube texture Ni8W substrate Ni8W substrate recrystallization annealing recrystallization annealing rolling rolling spark plasma sintering spark plasma sintering
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| GB/T 7714 | Ji, Yaotang , Suo, Hongli , Meng, Yichen et al. A Study about Ni-8 at % W Alloy Substrates Used for REBCO Coated Conductors [J]. | PHYSICS OF METALS AND METALLOGRAPHY , 2021 . |
| MLA | Ji, Yaotang et al. "A Study about Ni-8 at % W Alloy Substrates Used for REBCO Coated Conductors" . | PHYSICS OF METALS AND METALLOGRAPHY (2021) . |
| APA | Ji, Yaotang , Suo, Hongli , Meng, Yichen , Wu, Xinyu , Shaheen, Kausar , Ma, Lin et al. A Study about Ni-8 at % W Alloy Substrates Used for REBCO Coated Conductors . | PHYSICS OF METALS AND METALLOGRAPHY , 2021 . |
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摘要 ：
Using an environmentally friendly acid-alcohol system solution for electrochemical polishing of 3D printed titanium alloy, a typical U-I polarization curve was obtained, and explained the mechanism of electrochemical polishing. In this paper, the influence of electrochemical polishing factors (electrolyte temperature, polishing distance, and polishing time) on the surface roughness of Ti-6Al-4V (TC4) was studied, and optimized the process parameters to obtain a surface roughness of 0.3 mu m (1 mm x 1 mm). Electrochemical polishing can reach the level of mechanical grinding and polishing, meeting the requirements for subsequent assembly and use.
关键词 ：
atomic force microscope atomic force microscope electrochemical polishing electrochemical polishing surface roughness surface roughness titanium alloy titanium alloy
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| GB/T 7714 | Wang, Shan-Fei , Wang, Yi , Wen, Jia-Cheng et al. Study on electrochemical polishing of TC4 alloy [J]. | MATERIALS RESEARCH EXPRESS , 2021 , 8 (10) . |
| MLA | Wang, Shan-Fei et al. "Study on electrochemical polishing of TC4 alloy" . | MATERIALS RESEARCH EXPRESS 8 . 10 (2021) . |
| APA | Wang, Shan-Fei , Wang, Yi , Wen, Jia-Cheng , Suo, Hong-Li , Liu, Zhuang-Zhuang , Suo, Wen-hua et al. Study on electrochemical polishing of TC4 alloy . | MATERIALS RESEARCH EXPRESS , 2021 , 8 (10) . |
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摘要 ：
In this study, boron powder with different particle sizes was purified by both chemical and heat treatment methods. The reduction in the particle size can improve the chemical purification with no effort on the heat treatment. The superconducting properties of the powder drastically changed even with only a partial elimination of oxygen. On the one hand, less oxygen content resulted in high T-c and J(c) values under the low magnetic field, and most importantly, a significant improvement in the superconducting connectivity (A(f) value). On the other hand, the degradation of J(c) under a high field and a change in the pinning mechanism were also found, along with decreasing oxygen. This result indicated that oxygen, probably MgO, might act as the pinning center and as an obstacle for the supercurrent in MgB2 at the same time. This work paves the way for obtaining pure oxygen-free MgB2 and understanding the real effect of oxygen in MgB2.
关键词 ：
boron powder boron powder MgB2 MgB2 particle size particle size purification purification superconducting connectivity superconducting connectivity
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| GB/T 7714 | Yang, Liangqun , Suo, Hongli , Ma, Lin et al. Exploration of the Effect of Oxygen on Superconductivity in MgB2 Bulk by Using Boron Powder with Different Particle and Purification [J]. | CRYSTALS , 2021 , 11 (3) . |
| MLA | Yang, Liangqun et al. "Exploration of the Effect of Oxygen on Superconductivity in MgB2 Bulk by Using Boron Powder with Different Particle and Purification" . | CRYSTALS 11 . 3 (2021) . |
| APA | Yang, Liangqun , Suo, Hongli , Ma, Lin , Liu, Min , Zhao, Wanli , Liu, Jianhua et al. Exploration of the Effect of Oxygen on Superconductivity in MgB2 Bulk by Using Boron Powder with Different Particle and Purification . | CRYSTALS , 2021 , 11 (3) . |
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摘要 ：
Vacancies created on a surface can alter the local electronic structure, thus enabling a higher intrinsic activity for the evolution of hydrogen and oxygen. Conventional strategies for vacancy engineering, however, have a strong focus on non-metal sulfur/oxygen defects, which have often overlooked metallic vacancies. Herein, evidence is provided that cobalt vacancies can be atomically tuned to have different sizes to achieve cobalt vacancy clusters through controlling the migration of iridium single atoms. The coalescence of Co vacancy clusters at the surface of an IrCo alloy results in an increased d-band level and eventually compromises H adsorption, leading to enhanced electrocatalytic activity toward the hydrogen evolution reaction. In addition, the Co vacancy clusters can improve the electronic conductivity with respect to the oxidized Co surface, which substantially aids in strengthening the adsorption of oxygen intermediates toward an effective oxygen evolution reaction at a low overpotential. These collective effects originate from the Co vacancy cluster and specifically enable highly efficient and stable water splitting with a low total overpotential of 384 mV in alkaline media and 365 mV in an acidic environment, achieving a current density of 10 mA cm(-2).
关键词 ：
HER HER Co vacancy clusters Co vacancy clusters water electrolysis water electrolysis OER OER vacancy engineering vacancy engineering
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| GB/T 7714 | Zhou, Yu-Qi , Zhang, Lifu , Suo, Hong-Li et al. Atomic Cobalt Vacancy-Cluster Enabling Optimized Electronic Structure for Efficient Water Splitting [J]. | ADVANCED FUNCTIONAL MATERIALS , 2021 , 31 (26) . |
| MLA | Zhou, Yu-Qi et al. "Atomic Cobalt Vacancy-Cluster Enabling Optimized Electronic Structure for Efficient Water Splitting" . | ADVANCED FUNCTIONAL MATERIALS 31 . 26 (2021) . |
| APA | Zhou, Yu-Qi , Zhang, Lifu , Suo, Hong-Li , Hua, Weibo , Indris, Sylvio , Lei, Yaojie et al. Atomic Cobalt Vacancy-Cluster Enabling Optimized Electronic Structure for Efficient Water Splitting . | ADVANCED FUNCTIONAL MATERIALS , 2021 , 31 (26) . |
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摘要 ：
Different films comprising pure chitosan (CS) and chitosan coated sodium zeolites composites films designated as CSZ1, CSZ2, CSZ3 and CSZ4 respectively are presented here for the sequestration of MO dye. The as-synthesized films were characterized by using FSESM, XPS XRD, and TGA analysis. The sequestration of methyl orange dye (MO) was studied under various adsorption parameters i.e. pH effect, reaction temperature, catalytic dosage, interaction period, and original dye concentration in batch experiments. The adsorption power of MO dye sequestration in the presence of CSZ3 was 287 mg g-1 higher than the fine CS (201 mg g-1), and lowest for CSZ4 (173 mg g-1). The experimental data is fitted in the pseudo-second order of chemical kinetics. The Freundlich and Langmuir adsorption models were used on behalf of the analysis of experimental data that revealed multilayered adsorption of MO dye. Kinetics, equilibrium and thermodynamic process were discussed in detailed, suggesting the endothermic and spontaneous process of the adsorption of MO dye on the exterior of films. The present work is general for the MO adsorption, however, it can be applied on large scale applications and can be easily adjustable in the water purification assemblies.
关键词 ：
Adsorption studies Adsorption studies Chitosan films Chitosan films Methyl orange dye Methyl orange dye
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| GB/T 7714 | Hussain Shah , Kamran Muhammad , Khan Shahid Ali et al. Adsorption, kinetics and thermodynamics studies of methyl orange dye sequestration through chitosan composites films. [J]. | International journal of biological macromolecules , 2021 , 168 : 383-394 . |
| MLA | Hussain Shah et al. "Adsorption, kinetics and thermodynamics studies of methyl orange dye sequestration through chitosan composites films." . | International journal of biological macromolecules 168 (2021) : 383-394 . |
| APA | Hussain Shah , Kamran Muhammad , Khan Shahid Ali , Shaheen Kausar , Shah Zarbad , Suo Hongli et al. Adsorption, kinetics and thermodynamics studies of methyl orange dye sequestration through chitosan composites films. . | International journal of biological macromolecules , 2021 , 168 , 383-394 . |
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摘要 ：
Among all the preparation methods, electrochemical exfoliation of graphite in neutral aqueous solution to prepare high-quality graphene is a hot research topic due to many advantages, such as high efficiency, environmental friendly, fewer defects, and convenient operation with simple equipment. In this work, the graphene was prepared by pre-intercalation assisted electrochemical exfoliation of graphite foil, in which one pre-intercalation stage was performed at the low voltage to moderately enlarge the interlayer distance of graphite foil, and then graphite electrode was electrochemically exfoliated to produce graphene nanosheets in an aqueous inorganic salt solution of (NH4)2SO4. Through comparing two pretreatment methods of graphite foil (pre-expansion with liquid nitrogen and pre-intercalation by electrochemical intercalation), the electrochemical pre-intercalation process was confirmed to avoid the serious loss of the graphite electrode during the liquid nitrogen pretreatment and facilitate electrochemical exfoliation. Meanwhile, the optimum parameters of pre-intercalation were determined. Subsequently, the effect of applied voltage on the quality of obtained graphene (such as the number of layers, defects, size, composition) during the exfoliation stage was investigated systematically, and especially the effect of applied voltage on the quality and yield of graphene was discussed in detail. The graphene nanosheets with a small number of layers (60% is less than 5 layers) were obtained through two stages of electrochemical pre-intercalation and exfoliation. The structure, morphology, and composition of the graphene were analyzed by using the XRD, SEM, TEM, AFM, and XPS. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
关键词 ：
Defects Defects Electrochemical electrodes Electrochemical electrodes Exfoliation (materials science) Exfoliation (materials science) Graphene Graphene Graphite Graphite Graphite electrodes Graphite electrodes Liquefied gases Liquefied gases Liquid nitrogen Liquid nitrogen Nanosheets Nanosheets Nitrogen compounds Nitrogen compounds
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| GB/T 7714 | Pei, Junfeng , Zhang, Teng , Suo, Hongli . Graphene preparation and process parameters by pre-intercalation assisted electrochemical exfoliation of graphite [J]. | Journal of Solid State Electrochemistry , 2021 , 25 (4) : 1245-1257 . |
| MLA | Pei, Junfeng et al. "Graphene preparation and process parameters by pre-intercalation assisted electrochemical exfoliation of graphite" . | Journal of Solid State Electrochemistry 25 . 4 (2021) : 1245-1257 . |
| APA | Pei, Junfeng , Zhang, Teng , Suo, Hongli . Graphene preparation and process parameters by pre-intercalation assisted electrochemical exfoliation of graphite . | Journal of Solid State Electrochemistry , 2021 , 25 (4) , 1245-1257 . |
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