IEEE Transactions on Applied Superconductivity最新文献_第3页

Development of a Scalable Method for the Synthesis of High Quality (Ba,K)-122 Superconducting Powders

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-17 DOI: 10.1109/TASC.2025.3530897

Andrea Malagoli;Andrea Traverso;Cristina Bernini;Federico Loria;Alessandro Leveratto;Emilio Bellingeri;Matteo Bordonaro;Matteo Cialone;Hafiz M. Hassan;Valeria Braccini;Amalia Ballarino

{"title":"Development of a Scalable Method for the Synthesis of High Quality (Ba,K)-122 Superconducting Powders","authors":"Andrea Malagoli;Andrea Traverso;Cristina Bernini;Federico Loria;Alessandro Leveratto;Emilio Bellingeri;Matteo Bordonaro;Matteo Cialone;Hafiz M. Hassan;Valeria Braccini;Amalia Ballarino","doi":"10.1109/TASC.2025.3530897","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530897","url":null,"abstract":"Iron-based superconducting (IBS) wires fabricated through the powder-in-tube (PIT) method are prospective candidate materials for high magnetic field applications. In order to meet the requirements of such applications, it is important to obtain practical conductors with high transport critical currents at a competitive cost. Among the several IBS families, the (Ba,K)Fe2As2 (Ba-122) phase has the best potential to become a cost-effective high-field superconductor. However, two aspects of the fabrication procedure present issues which still hinder the development towards the affirmation of such superconductor in the industrial applications field: on one side the powder purity, especially when developing a route for the fabrication of large amounts, and on the other side the application of techniques scalable to obtain long length conductors with the same transport properties of the short samples. We here focus on an innovative and scalable fabrication process we have developed to fabricate pure Ba1-xKxFe2As2 powders in batches up to the order of 25 g, a quantity which allows us to fabricate at least 20 meters of monfilamentary conductor.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143369930","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

AC Loss Modeling of Non-Standard Arrangements of Y-Ba-Cu-O Tapes in a Stack

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3527914

George Y. Panasyuk;Charles R. Ebbing;John P. Murphy;Nadina Gheorghiu;Michael D. Sumption;Timothy J. Haugan

引用次数: 0

Development of SQUID Array Amplifiers for the LiteBIRD CMB Satellite

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530377

S. T. P. Boyd;Tijmen de Haan

{"title":"Development of SQUID Array Amplifiers for the LiteBIRD CMB Satellite","authors":"S. T. P. Boyd;Tijmen de Haan","doi":"10.1109/TASC.2025.3530377","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530377","url":null,"abstract":"LiteBIRD is an upcoming JAXA-led mission that aims to measure primordial gravitational waves in the B-mode polarization of the cosmic microwave background. It is set to launch in 2032. The LiteBIRD detector array consists of around 5000 TES detectors which are read out using digital frequency multiplexing over a bandwidth of 1-6 MHz. The multiplexing factor ranges from 58x to 68x. We are presently developing single-stage SQUID array amplifiers for LiteBIRD readout. Due to the reduced complexity and cost, and greater heritage from ground-based experiments such as the South Pole Telescope and Simons Array, single-stage SQUID array amplification is preferable for the first-stage amplification, as long as it can meet the requirements. The LiteBIRD single-stage SQUID Array is required to have high transimpedance amplification while maintaining a low input inductance and low dynamic resistance. In addition, the input-referred current noise must be very low, and the power dissipation must remain below about 100 nW. These requirements have non-trivial interactions. To maximize performance within these requirements we have performed lumped-element SQUID simulation. We find that by optimizing SQUID internal damping elements and inductive loading, good single-stage SQUID array performance can be obtained for LiteBIRD, including significant engineering margin.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184232","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

Development of Electrically Conductive Buffer for REBCO Conductors

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530334

Md Abu Sayeed;Manoj Paulose;Jithin sai Sandra;Susancy Sherin;Abhin Prabhakaran;Sahil Sharma;Venkat Selvamanickam

{"title":"Development of Electrically Conductive Buffer for REBCO Conductors","authors":"Md Abu Sayeed;Manoj Paulose;Jithin sai Sandra;Susancy Sherin;Abhin Prabhakaran;Sahil Sharma;Venkat Selvamanickam","doi":"10.1109/TASC.2025.3530334","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530334","url":null,"abstract":"An electrically conductive buffer architecture can enable defect-tolerant RE-Ba-Cu-O (REBCO) superconductor tapes by providing a current shunt path to the substrate. We are developing suitable electrically conductive buffers based on Titanium Nitride (TiN) grown on an ion beam-assisted deposition (IBAD) template on Hastelloy C276 substrate. The aim is to prevent the oxidation of TiN during metal-organic chemical vapor deposition (MOCVD) of REBCO. The buffer architecture was modified to render TiN more oxidation-resistant while maintaining good electrical conductivity. A strong biaxial texture was achieved and a low electrical resistivity of 43 µΩcm was measured with this modified buffer architecture. An oxide layer based on the SrTiO3 (STO) cap layer was epitaxially grown using RF magnetron sputtering followed by REBCO film growth by MOCVD. By avoiding oxidation of the modified buffer architecture based on TiN, we achieved a strong epitaxy of REBCO with a sharp texture, without non-00L orientations. Scanning Hall Probe Microscopy (SHPM) data showed uniformly high critical current density throughout the entire REBCO tape.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-4"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184237","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

Current Recycling in Heterogeneous RSFQ Circuits

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530381

Tejumadejesu Oluwadamilare;Eby G. Friedman

{"title":"Current Recycling in Heterogeneous RSFQ Circuits","authors":"Tejumadejesu Oluwadamilare;Eby G. Friedman","doi":"10.1109/TASC.2025.3530381","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530381","url":null,"abstract":"As single flux quantum (SFQ) circuit complexities scale, larger bias currents are required. The large current produces excessive heat and greatly complicates the design process. Current recycling offers a solution by reducing the required bias current through serially biased circuit blocks. Serial biasing is typically achieved in homogeneous SFQ systems where similar bias currents are required in similar circuits. Each of these homogeneous circuits is often placed on different ground planes and serially biased to reuse the bias currents. To address heterogeneous circuits with varying bias current requirements, a novel serial biasing technique is proposed. An interface between the ground planes with unequal bias current is presented that exhibits a current balancing capability. The interface supplies additional current before passing the current to the next ground plane. The ground planes are arranged in ascending order of bias current to manage the complexity of these heterogeneous circuits. Using a one bit SFQ full adder as an example, the proposed approach demonstrates several key benefits: a 49% reduction in the number of driver-receiver pairs, a 6.5% reduction in power dissipation, and a 35% reduction in bias current across a heterogeneous SFQ circuit placed on three isolated ground planes. The performance, bias current margins, and methods for current reduction are also discussed, showcasing the effectiveness of current recycling in improving the efficiency of complex heterogeneous SFQ systems.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106243","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

Multi-Physics Characteristic Simulations of a Current-Limiting CORC Conductor for a 35 kV/1.5 kA Superconducting Fault Current Limiter (SFCL)

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530378

Jiahui Zhu;Pengzhen Huang;Panpan Chen;Hongjie Zhang;Yanfang Yang;Jie Sheng

{"title":"Multi-Physics Characteristic Simulations of a Current-Limiting CORC Conductor for a 35 kV/1.5 kA Superconducting Fault Current Limiter (SFCL)","authors":"Jiahui Zhu;Pengzhen Huang;Panpan Chen;Hongjie Zhang;Yanfang Yang;Jie Sheng","doi":"10.1109/TASC.2025.3530378","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530378","url":null,"abstract":"The rapid urbanization has led to a surge in short-circuit currents within the electrical grid, occasionally surpassing the interrupting capacity of circuit breakers. This challenge underscores the critical need to limit fault currents, representing a significant technical and economic issue for power grid management. Superconducting fault current limiter (SFCL) has the advantages of fast current limiting response, self-triggering, low loss and fast recovery, which is an effective solution to the short-circuit current problem. However, the existing SFCLs used in power grids have the problem of costing large amount of superconducting materials, which cannot meet the cost requirements of current limiting in medium and low voltage level lines. The SFCL with current-limiting CORC conductor has higher current-carrying capacity and lower production cost, which is expected to further enhance the reliability and economy of current limiting. Aiming at the current-limiting CORC conductor applied for a 35 kV/1.5 kA SFCL, an FEM model with electric, magnetic, fluid and thermal fields is established in COMSOL Multiphysics so as to explore the multi-field coupling mechanism under steady state and fault condition. Simulation results obtain the critical current, AC loss and magnetic field of the CORC conductor in steady state. Furthermore, The quench operation of the CORC conductor is performed by applying a fault RMS current of 17.5 kA and 1750 A to acquire its electromagnetic and thermal-fluid operation stability. This study explores the application prospect of CORC cable in SFCL and impels the practical application of SFCL.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183831","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

Transparent Superconductor on the Base of In2-ySnyO3-δ: Unraveling the Electrochemical Doping Mechanism

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530326

Aaron Parra;Meiyi Li;Oleh Feia;Danylo Menesenko;Mariam Al Sardar;Elena Zhitlukhina;Andrii Shapovalov;Mikhail Belogolovskii;Manuel Quevedo-Lopez;Ali Aliev

{"title":"Transparent Superconductor on the Base of In2-ySnyO3-δ: Unraveling the Electrochemical Doping Mechanism","authors":"Aaron Parra;Meiyi Li;Oleh Feia;Danylo Menesenko;Mariam Al Sardar;Elena Zhitlukhina;Andrii Shapovalov;Mikhail Belogolovskii;Manuel Quevedo-Lopez;Ali Aliev","doi":"10.1109/TASC.2025.3530326","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530326","url":null,"abstract":"Photonic and superconducting platforms are at the core of modern quantum technologies. However, most existing superconductors are opaque and highly absorptive. Indium-tin oxide (ITO) films reduced by electrochemical intercalation provide a promising solution for tunable superconductivity and transparency in the visible, NIR, and mid-IR optical regions. Understanding the mechanism of electrochemical reaction at the ITO surface and the dimensionality of the emerging superconducting state is a crucial step in developing devices that utilize the interaction of electromagnetic waves with a quantum state. Here we studied three routes to tune the charge density in ITO films, that might lead to the emergence of the superconducting state: doping with heterovalent atoms; electrochemical intercalation; and synthesis of oxygen-deficient ITO films. While the first does not show superconductivity at any level of doping, the second induces two-dimensional superconductivity at the ITO surface, and the third route creates three-dimensional superconductivity in bulk.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184242","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

Current Sharing in Defected Superconducting REBCO Tape Stack Cables for HTS Inserts in Accelerator Magnets: FEM Modeling

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530386

M. Majoros;M. D. Sumption;M. Jiang;E. W. Collings

{"title":"Current Sharing in Defected Superconducting REBCO Tape Stack Cables for HTS Inserts in Accelerator Magnets: FEM Modeling","authors":"M. Majoros;M. D. Sumption;M. Jiang;E. W. Collings","doi":"10.1109/TASC.2025.3530386","DOIUrl":"https://doi.org/10.1109/TASC.2025.3530386","url":null,"abstract":"In high energy physics magnets, superconducting cables are typically used, one for this reason is to limit inductance and thus voltages during magnet quench. For LTSC cables this also allows for current sharing in case of a local perturbation of a strand; such current sharing mitigates problems attendant to the low minimum quench energy seen in LTSC superconductors. For HTS strands, MQE is much larger, but an equally important function has emerged which is conductor redundancy. Heating due to small defects within the cable can be mitigated again by strand-to-strand current sharing. Of particular interest in this context are REBCO tape stacks, Roebel and CORC cables. Here small defects may arise in the original tapes, either during cabling or in service in the magnet. However they arise, local heating can be generated if current sharing is not present. In this article, we modelled the current sharing in non-insulated tape stacks (i.e., tape stack cables) containing seven double-sided tapes with defects present in some of the tapes. In this article, we used Finite Element Method (FEM) modeling, assuming critical current densities of these tapes relevant for operation at 4.2 K (boiling liquid He).","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184240","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

Elasticity, Plasticity, and Fracture Toughness of REBCO Coated Conductors Characterized via Micromechanical Tests at Room Temperature

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-16 DOI: 10.1109/TASC.2025.3530382

G. Vernassa;M. Rusinowicz;S. Kalácska;S. Sao-Joao;L. Bottura;H. Felice;B. Bordini;J.-M. Bergheau;G. Kermouche

引用次数: 0

SMART Coil-to-Coil Insulation for Non-Insulated (RE)Ba2Cu3O7-x Pancake Coils

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-01-15 DOI: 10.1109/TASC.2025.3529418

Marcello Catellani;William Lo;Karla N. Herrera Guzman;Matthew Leoschke;Nailah Oliver;Federico Scurti

引用次数: 0