IEEE Transactions on Applied Superconductivity最新文献_第6页

Investigating the Impact of BaCuO2-CuO Ratio on YBCO Thin Film Growth via Transient Liquid-Assisted Fluorine-Free Metal Organic Deposition 通过瞬态液体辅助无氟金属有机沉积研究 BaCuO2-CuO 比率对 YBCO 薄膜生长的影响

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-24 DOI: 10.1109/TASC.2025.3540835

Xinghang Zhou;Yixue Fu;Zhiyong Liu;Rongtie Huang;Jing Chen;Minjuan Li;Chuanbing Cai

{"title":"Investigating the Impact of BaCuO2-CuO Ratio on YBCO Thin Film Growth via Transient Liquid-Assisted Fluorine-Free Metal Organic Deposition","authors":"Xinghang Zhou;Yixue Fu;Zhiyong Liu;Rongtie Huang;Jing Chen;Minjuan Li;Chuanbing Cai","doi":"10.1109/TASC.2025.3540835","DOIUrl":"https://doi.org/10.1109/TASC.2025.3540835","url":null,"abstract":"This article utilizes a fluorine-free metal organic deposition method (FF-MOD) combined with transient liquid-assisted growth (TLAG) technology to prepare <inline-formula><tex-math>$text{YBa}_{2}text{Cu}_{3}text{O}_{7-delta }$</tex-math></inline-formula> (YBCO) superconducting thin films, achieving growth rates exceeding 60 nm/s on metallic substrates. A bilayer coating method was employed, introducing a layer of fluorine-containing material of varying thickness before applying the fluorine-free layer. This approach allowed the adjustment of carbon content in the FF layer through the diffusion of fluorine. Ultimately, different <inline-formula><tex-math>$text{BaCuO}_{2}-text{CuO}$</tex-math></inline-formula> ratio bilayer films were obtained during the crystallization process to study their effects on the generation of Ba-Cu-O liquid phase, as well as the growth rate, orientation, and texture of YBCO. This research contributes to a deeper understanding of the reaction processes and mechanisms for achieving rapid growth of YBCO films based on the Ba-Cu-O liquid phase, addressing gaps in the field and providing valuable guidance.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594291","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

Thermal Energy Consumption of a SMES Cooled by Liquid Hydrogen in a Fuel Cell-Battery System

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-24 DOI: 10.1109/TASC.2025.3544588

Kexing Li;Ke Li;Yutong Fu;Liang Zou;Longhao Yang;Weihang Peng;Yawei Wang

{"title":"Thermal Energy Consumption of a SMES Cooled by Liquid Hydrogen in a Fuel Cell-Battery System","authors":"Kexing Li;Ke Li;Yutong Fu;Liang Zou;Longhao Yang;Weihang Peng;Yawei Wang","doi":"10.1109/TASC.2025.3544588","DOIUrl":"https://doi.org/10.1109/TASC.2025.3544588","url":null,"abstract":"The use of liquid hydrogen (<inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula>) in fuel cell-powered ships has been studied. However, directly heating <inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula> to the operating temperature of the fuel cell requires considerable energy consumption. The heat generated from AC losses in superconducting magnetic energy storage (SMES) during operation must be promptly removed by the refrigeration system. <inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula> is considered a promising superconducting refrigeration medium. Therefore, this paper establishes a <inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula> -fuel cell-SMES electric-thermal integrated system, wherein <inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula> is utilized for SMES refrigeration and as a fuel supply for the fuel cell. The system's refrigeration and fuel supply demands were determined by calculating the SMES AC losses and the fuel cell hydrogen consumption under three different energy management strategies. The preliminary heating of <inline-formula><tex-math>$text{LH}_{2}$</tex-math></inline-formula> is achieved through SMES refrigeration, followed by expansion work and heat generated by the fuel cell to meet the operational conditions required by the fuel cell. Results indicate that under the equivalent consumption minimization strategy (ECMS), the fuel cell achieves the lowest hydrogen consumption, albeit with the highest overall system energy consumption. The AC loss optimization Strategy A minimizes SMES AC losses, reducing the load on the refrigeration system but increasing hydrogen consumption. Strategy B optimally balances SMES AC losses and fuel cell hydrogen consumption, resulting in fuel cell hydrogen consumption nearly identical to that under ECMS, significantly lower than under Strategy A, and with overall system energy consumption lower than that under ECMS.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-7"},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629577","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

Effects of Transverse Compressive Stress on CORC Cables Under Various Mechanical Support Conditions

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-24 DOI: 10.1109/TASC.2025.3544606

Yang Guo;Shengchen Xue;Michael D. Sumption;Edward W. Collings

{"title":"Effects of Transverse Compressive Stress on CORC Cables Under Various Mechanical Support Conditions","authors":"Yang Guo;Shengchen Xue;Michael D. Sumption;Edward W. Collings","doi":"10.1109/TASC.2025.3544606","DOIUrl":"https://doi.org/10.1109/TASC.2025.3544606","url":null,"abstract":"CORC ReBCO cables are promising conductors for the next generation of high-performance cables for high-field accelerator magnets. However, because significant mechanical stress is inevitable in high field magnet applications, the deformation and damage of these cables under large stresses should be explored. Focusing on high field accelerator dipole inserts for a moment, various mechanical configurations for the winding are under consideration, which may affect cable performance. Therefore, the relationship between mechanical support conditions and the mechanical performance of CORC ReBCO cable under transverse compressive stress should be explored. In this study, the effects of transverse pressure on CORC cables with either side support during pressure application, or epoxy impregnation, or both, were investigated. Several segments of a particular CORC cable were used in four different mechanical configurations; (i) as received, (ii) unpotted but with side support, (iii) potted without side support, and (iv) potted and with side support. A material Testing System (MTS model 43) was utilized to compress our samples up to 30 kN in four different supporting conditions as listed above. Samples were autopsied using optical as well as scanning electron microscopy after the completion of the mechanical tests. As a result, we found that the support conditions enhance the mechanical performance of the CORC cable by extending the elastic-plastic transition load to a larger stress level, and we also observe cleavage cracks after the completion of the compressive stress test.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748783","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

Thermal, Structural, and Rotordynamics Refinements to the Superconducting Rotor of a 1.4 MW Partially Superconducting Machine for Electrified Aircraft

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-24 DOI: 10.1109/TASC.2025.3540733

Justin J. Scheidler;Thomas F. Tallerico;Erik J. Stalcup;Kirsten P. Duffy

引用次数: 0

Statistics on AB-Plane Offsets in REBCO Coated Conductors and Implications for Non-Twisted Magnets

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-24 DOI: 10.1109/TASC.2025.3545023

J. L. Cheng;Ashleigh Francis;Maise Shepard;Yingtai Chen;Justin Gonzalez;Corey Plant;Catherine Judd;Melanie Russo;Jan Jaroszynski;James Logan;Brian Labombard;Brandon Sorbom

{"title":"Statistics on AB-Plane Offsets in REBCO Coated Conductors and Implications for Non-Twisted Magnets","authors":"J. L. Cheng;Ashleigh Francis;Maise Shepard;Yingtai Chen;Justin Gonzalez;Corey Plant;Catherine Judd;Melanie Russo;Jan Jaroszynski;James Logan;Brian Labombard;Brandon Sorbom","doi":"10.1109/TASC.2025.3545023","DOIUrl":"https://doi.org/10.1109/TASC.2025.3545023","url":null,"abstract":"The critical current (<italic>Ic) of 2G REBa2Cu3O7-x (REBCO) high temperature superconductors (HTS) is highly anisotropic with respect to the applied magnetic field (<italic>B), with a strong <italic>Ic peak expressed at <italic>B||ab-plane of the HTS crystal structure. However, as manufactured, there is typically a small-angle ab-plane tilt offset relative to the plane of the tape, and a large average offset can significantly affect magnet <italic>Ic if unaccounted for, especially in non-twisted coils such as the SPARC toroidal field magnets being developed by Commonwealth Fusion Systems (CFS). To address this issue, the statistics of the magnitude and orientation of the ab-offset were studied on quick time scales in production quantities for two different HTS vendors by X-Ray Diffraction (XRD) using (005) rocking curves, and the offset was observed to be vendor dependent. The data were correlated positively with offsets determined by SEM, and to <italic>Ic at low temperature and moderate to high field by transport and torque magnetometry.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676121","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

Measurement and Modeling of Initial Quench Development in Nb3Sn Accelerator Magnets

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-21 DOI: 10.1109/TASC.2025.3540833

Ruben Keijzer;Gerard Willering;Piotr Rogacki;Lucio Fiscarelli;Stephan Russenschuck;Marc Dhallé;Herman Ten Kate

{"title":"Measurement and Modeling of Initial Quench Development in Nb3Sn Accelerator Magnets","authors":"Ruben Keijzer;Gerard Willering;Piotr Rogacki;Lucio Fiscarelli;Stephan Russenschuck;Marc Dhallé;Herman Ten Kate","doi":"10.1109/TASC.2025.3540833","DOIUrl":"https://doi.org/10.1109/TASC.2025.3540833","url":null,"abstract":"Accelerator magnets are equipped with voltage taps and, on the test bench, with so-called quench antenna's to monitor the transient effects occurring during a magnet quench. Proper identification and localization of a quench origin is vital for understanding performance issues in Nb3Sn accelerator magnets. In this paper, we describe the physical phenomena that occur during the first few milliseconds of a developing quench and how they affect the signals as intercepted with the diagnostic tools. A better understanding of these phenomena allows for better resolution on determination of the quench start location. Measurements from Nb3Sn accelerator magnets are compared with a 3D thermal-electric PEEC-FEM model of a Rutherford cable. The voltage measured over the cable shows an accelerating build-up attributed to the transverse quench propagation in the cable cross-section, which is dominated by inductive effects that results in an avalanche of quenching strands. A slow-down in the voltage build-up then indicates the point at which all strands in the cable cross-section have quenched. This phase of the quench involves a significant current redistribution that creates a magnetic dipole moment picked up by a quench antenna. The harmonic quench antenna used in this work is used to reconstruct the location, magnitude, and direction of this dipole moment, which strongly depends on the start location of the quench in the cable cross-section, on the inter-strand contact resistances and on the magneto-resistance of the copper. It is shown how the quench start location in the cable cross-section can be determined from the time integral of the reconstructed dipole moment.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-7"},"PeriodicalIF":1.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521491","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

Improvement of the Circuit Analyzer Problem Solver CALYPSO

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-20 DOI: 10.1109/TASC.2025.3543798

Marco Breschi;Antonio Macchiagodena;Pier Luigi Ribani;Andrea Musso;Giuliano Angeli;Marco Bocchi

{"title":"Improvement of the Circuit Analyzer Problem Solver CALYPSO","authors":"Marco Breschi;Antonio Macchiagodena;Pier Luigi Ribani;Andrea Musso;Giuliano Angeli;Marco Bocchi","doi":"10.1109/TASC.2025.3543798","DOIUrl":"https://doi.org/10.1109/TASC.2025.3543798","url":null,"abstract":"The no-insulation high-temperature superconducting (NI-HTS) coil technology is a promising field of application of HTS tapes, which has gained popularity in recent years. Compared to conventional insulated coils, NI-HTS coils have a better ability to cope with quenches, given the possibility for current and heat to redistribute towards adjacent turns in presence of a hot-spot. In recent years, the authors developed a nonlinear circuit model to compute current distribution and AC losses in NI-HTS coils (named CALYPSO). This model describes the currents flowing from turn to turn due to the NI configuration, as well as the magnetization currents arising in each tape. However, applying this model to coils composed of a large number of turns results in a high computational burden. This work presents an in-depth discussion of the reasons for the long computation time and the solutions and code improvements implemented to tackle this issue. Additionally, a comparison between the losses predicted by the code and those measured on straight REBCO tapes is presented. The model is then applied to investigate the electrodynamics of a NI pancake coil including both magnetization currents and radial currents. The impact of surface contact resistivity between turns on the delay between the magnetic field along the coil axis and the transport current is analyzed, showing the details of the current distribution between turns and inside individual tapes.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583164","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

Misaligned Analysis of the 15 T Magnet in Super-X Facility

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-20 DOI: 10.1109/TASC.2025.3543771

Yongsheng Wu;Houxiang Han;Lei Wu;Yi Shi;Yu Wu;Jinggang Qin

{"title":"Misaligned Analysis of the 15 T Magnet in Super-X Facility","authors":"Yongsheng Wu;Houxiang Han;Lei Wu;Yi Shi;Yu Wu;Jinggang Qin","doi":"10.1109/TASC.2025.3543771","DOIUrl":"https://doi.org/10.1109/TASC.2025.3543771","url":null,"abstract":"The Super-X facility for testing large size superconducting conductors is making significant progress. However, the magnetic force between two coils arises when the centers of their respective magnetic fields do not coincide. Coil misalignment is nearly unavoidable during the installation of magnets which will lead to this eccentric force. In particular, for suspended background magnet in Super-X facility, the eccentric force amplifies the stress on structural components, thereby potentially compromising the magnet's safe operation. Therefore, it is imperative to evaluate its impact on the structural components of the magnet. The pull rope structure of the background magnet is elaborated upon in this article, followed by the analysis of the electromagnetic force generated under different eccentricities of the magnet. Subsequently, the stresses on the structural components of the magnet with and without the pull rope structure are analyzed separately. The results demonstrate that the presence of a pull rope structure is crucial for withstanding magnet eccentricity. Thus far, it can be concluded that the mechanical performance of the magnet still meets the design requirements, taking into account coil misalignment.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 3","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601875","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

A Quench Behavior Predictive Model for High Temperature Superconducting Magnet Based on Deep-Learning Neural Network

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-20 DOI: 10.1109/TASC.2025.3543793

Pai Peng;Yutong Fu;Weihang Peng;Yawei Wang

{"title":"A Quench Behavior Predictive Model for High Temperature Superconducting Magnet Based on Deep-Learning Neural Network","authors":"Pai Peng;Yutong Fu;Weihang Peng;Yawei Wang","doi":"10.1109/TASC.2025.3543793","DOIUrl":"https://doi.org/10.1109/TASC.2025.3543793","url":null,"abstract":"No-insulation (NI) high temperature superconduct-ing (HTS) coils show higher stability than traditionally insulated HTS coils. However, quench remains one of the most crucial issues affecting the safe operation of NI magnets. The quench behaviors in NI coils exhibit inherent complexity since turn-to-turn current redistribution. Low normal zone propagation speed of HTS materials makes it difficult to detect the local hotspot in the early stage of quench, which potentially leads to irreversible damage. In this study, a multi-physical quench behavior predictive model based on Long Short-Term Memory (LSTM) network for HTS NI coils is proposed. Quench data is obtained from an electromagnetic-thermal coupled numerical model with different quench initial locations. By leveraging multi-physical signals as input, the model can predict the dynamic quench behaviors over a future period of time, including temperature, azimuthal current, radial current density and magnetic field. Additionally, the model is capable of predicting quench behaviors at different spatial locations within the coil, achieving a prediction speed of 0.002 seconds and a prediction error below 0.2%. This method demonstrates promise for early quench detection using multi-physical signals and for enabling a timely protection system response.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621625","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

Highly Sensitive DC SQUID Arrays for the Readout of Optical TES at mK Temperatures

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-20 DOI: 10.1109/TASC.2025.3543941

Matthias Schmelz;Vitaliy Shvab;Katja Peiselt;Jürgen Kunert;Vyacheslav Zakosarenko;Thomas Stöhlker;Gregor Oelsner;Ronny Stolz

引用次数: 0