IEEE Transactions on Applied Superconductivity最新文献_第10页

Mechanical Properties of a Ni-Co-Cr-Mo Alloy Ni-Co-Cr-Mo合金的力学性能

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-11 DOI: 10.1109/TASC.2025.3541999

Ke Han;Y. Xin;V. J. Toplosky;R. M. Niu;J. Lu

{"title":"Mechanical Properties of a Ni-Co-Cr-Mo Alloy","authors":"Ke Han;Y. Xin;V. J. Toplosky;R. M. Niu;J. Lu","doi":"10.1109/TASC.2025.3541999","DOIUrl":"https://doi.org/10.1109/TASC.2025.3541999","url":null,"abstract":"Because effective reinforcement materials must have both high capacity for load bearing and high resistance to deformation under external force, they require both high mechanical tensile strength and a high elasticity modulus. Both strength and modulus are usually amplified at cryogenic temperatures, so properties at both cryogenic and room temperatures must be characterized before the materials can be used for applications. In this study, we investigated a nickel-based alloy whose Young's modulus is higher than that of the stainless steels that have commonly been relied on as reinforcement materials in cryogenic environments. Our test alloy was subjected to a type of thermo-mechanical processing that strengthens the alloy through very fine planar defects. We first deformed the alloy to various magnitudes at room temperature, and we then measured its properties at both cryogenic and room temperatures. Finally, we assessed the properties (at both temperatures) of the materials that were deformed to different deformation strains at room temperature. We found that our test alloy had anisotropy in both elastic modulus and mechanical strength and had more resistance to plastic deformation at cryogenic temperatures than at room temperatures. We then investigated physical property changes in various magnetic fields and at various cryogenic temperatures. This paper summarizes 1) the changes that occurred in the microstructure of our alloy and 2) the properties desirable for effective reinforcement materials.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Behavior of Superconducting Nanostructured Switching Device by the Numerical Calculation 超导纳米结构开关器件性能的数值计算研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-10 DOI: 10.1109/TASC.2025.3549384

Masumi Inoue;Ikumi Miyazaki

{"title":"Study on the Behavior of Superconducting Nanostructured Switching Device by the Numerical Calculation","authors":"Masumi Inoue;Ikumi Miyazaki","doi":"10.1109/TASC.2025.3549384","DOIUrl":"https://doi.org/10.1109/TASC.2025.3549384","url":null,"abstract":"We investigated the properties and switching behavior of superconducting nanostructured device such as nanocryotron using numerical calculation methods. Superconducting nanostructured switching devices such as nanocryotron (nTron) are promising candidates for the interface between the single-flux-quantum (SFQ) circuit and the CMOS memory in building highly integrated superconducting circuits. Although some simulations have been performed, the detailed physics of its operation is not clear. Therefore, we are studying the behavior of superconducting nanostructured devices through numerical simulations using the thermal diffusion equation and the time-dependent Ginzburg-Landau (TDGL) equation. We previously reported on the simulation of a simple T-shaped line with a current confluence of a constant bias current and a short-time gate current. As the next step, we report the simulation on a T-shaped device with a constriction in the channel. We observed the variation in current, temperature, voltage generated in the channel, etc. during switching. Although the simulations in this report are ongoing, they will help analyze and understand the experimental results and are also expected to provide guidelines for device design.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study of the Nb3Sn-Embedded Quench Detection Module for HTS Magnets 高温超导磁体埋入nb3sn淬火检测模块的实验研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-10 DOI: 10.1109/TASC.2025.3548030

Junseong Kim;Philip C. Michael;Jagadishwar R. Sirigiri;Dongkeun Park

引用次数: 0

HTS for Future Circular Collider Beamscreen: New Moderate High-Pressure Reaction for the Synthesis of Tl-1223 未来圆形对撞机光束屏的高温超导：合成Tl-1223的新中高压反应

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-10 DOI: 10.1109/TASC.2025.3549739

Alessandro Leveratto;Aisha Saba;Cristina Bernini;Federico Loria;Matteo Cialone;Andrea Malagoli;Sergio Calatroni;Emilio Bellingeri

{"title":"HTS for Future Circular Collider Beamscreen: New Moderate High-Pressure Reaction for the Synthesis of Tl-1223","authors":"Alessandro Leveratto;Aisha Saba;Cristina Bernini;Federico Loria;Matteo Cialone;Andrea Malagoli;Sergio Calatroni;Emilio Bellingeri","doi":"10.1109/TASC.2025.3549739","DOIUrl":"https://doi.org/10.1109/TASC.2025.3549739","url":null,"abstract":"This study focuses on the synthesis and characterization of the Tl0.7Bi0.2Pb0.2Sr1.6Ba0.4Ca1.9Cu3O9+x (Tl-1223) superconducting phase, with particular emphasis on constructing a detailed phase diagram that maps its formation across varying temperatures and oxygen pressures. By optimizing these parameters, we were able to determine the precise conditions for obtaining a high-purity Tl-1223 phase. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to examine the crystalline structure and morphology, while magnetic properties were investigated using SQUID magnetometry. The phase diagram provides critical insights into the stability of Tl-1223, guiding future synthesis efforts. Our magnetic measurements confirmed superconducting behavior with a critical temperature of approximately 120 K, validating the optimized synthesis process. Though primarily focused on phase formation, this research also opens up the potential for applying Tl-1223 in the Future Circular Collider (FCC) as a beam screen coating material. The superconducting properties of Tl-1223 make it a promising candidate for overcoming the limitations of traditional materials under FCC operational conditions. Future work will explore the preparation of Tl-1223 films for this application.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Electromagnetic and Loss Characteristics of NI HTS Coil During Charging Process NI高温超导线圈充电过程电磁特性及损耗特性研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-09 DOI: 10.1109/TASC.2025.3566060

Wenhai Zhou;Leiwen Yue;Rui Liang;Liang Yan;Shijie Shi;Jiafeng Cao

{"title":"Study on Electromagnetic and Loss Characteristics of NI HTS Coil During Charging Process","authors":"Wenhai Zhou;Leiwen Yue;Rui Liang;Liang Yan;Shijie Shi;Jiafeng Cao","doi":"10.1109/TASC.2025.3566060","DOIUrl":"https://doi.org/10.1109/TASC.2025.3566060","url":null,"abstract":"No-insulation high temperature superconducting (NI HTS) coils are widely used in magnetic resonance imaging, particle accelerators, and maglev trains due to their excellent electrothermal stability and self-protection characteristics. However, charging delay and charging loss will occur during the coil charging process, which will affect the stable operation of superconducting equipment. How to improve the charging efficiency of NI HTS coils and further reduce energy losses will become critical. This article is to study the electromagnetic and loss characteristics of two kinds of NI coils charging process. The first coil is only directly wound with REBCO tape, and the other is a solder impregnation treatment based on it, which reduces the turn-to-turn contact resistance of the coil. First, the equivalent circuit model is used to calculate the circumferential current, radial current, voltage and central magnetic field of the coil, and the influence of different factors on the charging process is discussed. Second, the equivalent circuit model is used to calculate the turn-to-turn loss of the coil, and the circumferential current is introduced into the finite element model (FEM) to calculate the magnetization loss. The charging loss characteristics of the two coils under different external field conditions are analyzed, and the effective measures to reduce the charging loss are obtained. The results show that the charging time decreases with the increase of the charging rate. However, an excessive charging rate will have an adverse effect on the coil. In addition, reducing the current amplitude and increasing the turn-to-turn contact resistance can effectively accelerate the charging process. The turn-to-turn loss of the NI coils during charging is much higher than the magnetization loss. The charging loss can be reduced by increasing the turn-to-turn contact resistance and reducing the charging rate.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 6","pages":"1-11"},"PeriodicalIF":1.7,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design, Test, and Shimming of a 1.5-T Head-Only MRI Superconducting Magnet 1.5 t头部核磁共振超导磁体的设计、测试和调光

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-08 DOI: 10.1109/TASC.2025.3568142

Yunxing Song;Zhiwen Cheng;Xunhuang Jiang;Jianglan Li;Liang Li;Qiuliang Wang

{"title":"Design, Test, and Shimming of a 1.5-T Head-Only MRI Superconducting Magnet","authors":"Yunxing Song;Zhiwen Cheng;Xunhuang Jiang;Jianglan Li;Liang Li;Qiuliang Wang","doi":"10.1109/TASC.2025.3568142","DOIUrl":"https://doi.org/10.1109/TASC.2025.3568142","url":null,"abstract":"As the core component of magnetic resonance imaging (MRI) system, superconducting magnet provides a high-intensity, stable, and homogeneous magnetic field background for the system. The strength, stability, and homogeneity of the magnetic field directly affect the imaging quality of MRI. This article presents the design, test, and shimming of a 1.5-T head-only MRI superconducting magnet developed by the Wuhan National High Magnetic Field Center. The magnet consists of seven primary coils and two shielding coils and is operated at an operating current of 510 A using bath cooling. The test has shown that the magnet reached the target field of 1.5 T directly after the first ramp-up without any quench. Under the magnetic field of 1.5 T, the magnetic field decay rate of the magnet is less than 0.02 ppm/hr. After three rounds of passive shimming, the magnet achieves a magnetic field inhomogeneity of 2.89 ppm over an imaging sphere within a diameter of 26 cm. The successful development of this magnet provides practical engineering validation for the lightweight technology of head-only MRI superconducting magnets.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 6","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing a New DC-to-DC Converter for Ultra-Fast Charges of Electric Vehicles Using Superconducting Inductors Cooled With Liquid Hydrogen 基于液氢冷却超导电感的电动汽车超高速充电用dc - dc变换器的研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-07 DOI: 10.1109/TASC.2025.3549007

T. Yagai;Y. Makida;T. Shintomi;N. Hirano;T. Hamajima

{"title":"Developing a New DC-to-DC Converter for Ultra-Fast Charges of Electric Vehicles Using Superconducting Inductors Cooled With Liquid Hydrogen","authors":"T. Yagai;Y. Makida;T. Shintomi;N. Hirano;T. Hamajima","doi":"10.1109/TASC.2025.3549007","DOIUrl":"https://doi.org/10.1109/TASC.2025.3549007","url":null,"abstract":"Toward 2050 carbon neutral, an increasing number of Battery Electric Vehicles (BEVs) must be achieved to reduce CO2 emission out of the mobility section. One of the barriers for spreading BEV use is definitely long charging time. Shorter charging time would be realized with very high power, higher voltage and higher current. Although conventional chargers, which are based on AC-to-DC (ACDC) power converters, receiving power from utility grids shows technologically high efficiency, the overall efficiency from power generation to battery charge is NOT so high due to multiplied efficiencies through the power path going down, typically below 90%. DC-to-DC (DCDC) boost converter technology allows us not only to make good use of renewable energy but to achieve very high charging efficiency by the way of direct power receiving from renewable sources. The bottle neck for large current charging is the current capacity of conventional inductors, which would be drastically improved by replacing the normal inductor to “superconducting coil”. Our group has designed and demonstrated a superconducting DCDC (SCDCDC) double-boost converter to prove the excellent potential as ultra-fast charger providing high voltage with large currents. We designed the SCDCDC by using Bi2223 and MgB2 coils. The converter with the MgB2 inductor which has already demonstrated nominal operation with liquid hydrogen cooling in a previous research, showed high efficiencies larger than 95% up to 15 kW of output power operations with liquid helium cooling.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Project Quality Management for the HL-LHC IT String HL-LHC IT生产线项目质量管理

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-07 DOI: 10.1109/TASC.2025.3548951

Nicolas Heredia Garcia;Marta Bajko;Sebastien Blanchard;Davide Bozzini;Oliver Brüning;Hector Garcia Gavela;Victor Guillen Humbria;Antoine Kosmicki;Estrella Vergara Fernandez;Samer Yammine;Markus Zerlauth

{"title":"Project Quality Management for the HL-LHC IT String","authors":"Nicolas Heredia Garcia;Marta Bajko;Sebastien Blanchard;Davide Bozzini;Oliver Brüning;Hector Garcia Gavela;Victor Guillen Humbria;Antoine Kosmicki;Estrella Vergara Fernandez;Samer Yammine;Markus Zerlauth","doi":"10.1109/TASC.2025.3548951","DOIUrl":"https://doi.org/10.1109/TASC.2025.3548951","url":null,"abstract":"This article explores the project management quality standards required for leading complex technical projects involving state-of-the art superconducting technologies, diverse stakeholders and extensive installation, commissioning, and quality assurance/ control activities. Specifically, it presents the project management framework – including processes and best practices – implemented for the High-Luminosity Large Hadron Collider (HL-LHC) Inner Triplet (IT) String test stand at CERN. This facility evaluates the collective behavior of major components to be installed on one side of the upgraded HL-LHC interaction point. It will serve to apply and improve installation and hardware commissioning test procedures, and QA/QC processes. The paper details the documentation and tools used to ensure proper execution and compliance with stakeholder requirements, as well as the communication strategy for reporting progress. Additionally, the paper specifies the type of quality control checks applied in the test stand, the tools to follow the tests from a managerial perspective and the handling of associated non-conformities. Finally, it presents the strategy for disseminating lessons learned to the project stakeholders.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tooling Design, Coil Fabrication, and Prototype Coil Performance Verification for a 28 GHz Nb3Sn ECR Ion Source Magnet 28 GHz Nb3Sn ECR离子源磁体的模具设计、线圈制造和原型线圈性能验证

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-07 DOI: 10.1109/TASC.2025.3548023

Philip Mallon;Tengming Shen;Ye Yang;Ray Hafalia;Lianrong Xu;Jose Ferradas Troitiño;Mariusz Juchno;Paolo Ferracin;Soren Prestemon;Yoonhyuck Choi;Junwei Guo;Xiaoji Du;David Greene;Danlu Zhang;Junseong Kim;Tomofumi Maruta;Guillaume Machicoane;Ting Xu;Jie Wei

{"title":"Tooling Design, Coil Fabrication, and Prototype Coil Performance Verification for a 28 GHz Nb3Sn ECR Ion Source Magnet","authors":"Philip Mallon;Tengming Shen;Ye Yang;Ray Hafalia;Lianrong Xu;Jose Ferradas Troitiño;Mariusz Juchno;Paolo Ferracin;Soren Prestemon;Yoonhyuck Choi;Junwei Guo;Xiaoji Du;David Greene;Danlu Zhang;Junseong Kim;Tomofumi Maruta;Guillaume Machicoane;Ting Xu;Jie Wei","doi":"10.1109/TASC.2025.3548023","DOIUrl":"https://doi.org/10.1109/TASC.2025.3548023","url":null,"abstract":"Worldwide several superconducting electron cyclotron resonance (ECR) ion sources have been developed and in operation for heavy ion accelerators using Nb-Ti magnets. To explore the use of high-field Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn to break the field limit of Nb-Ti for ECR magnets, state-of-the-art Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn coil fabrication techniques and tooling design must be used to address the challenging characteristics of Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn conductors. Earlier we reported the overall magnet design, conductor selection, and conductor characterization for building a 28 GHz superconducting ECR ion source using Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn sextupole coils for Facility for Rare Isotope Beams (FRIB). This paper describes the progress towards fabricating prototype Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn sextupole coil. In particular, we present tooling design, Nb<inline-formula><tex-math>$_{3}$</tex-math></inline-formula>Sn sextupole coil fabrication, and a mirror magnet for performance verification.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual Coil Superconducting AC Homopolar Machine for Turbo-Generator Applications 汽轮发电机用双线圈超导交流同极电机

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-07 DOI: 10.1109/TASC.2025.3567579

Swarn S. Kalsi;James G. Storey;Grant A. Lumsden;Rodney A. Badcock

引用次数: 0