# IEEE Transactions on Applied Superconductivity

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Displaying Results 1 - 25 of 26
• ### [Front cover]

Publication Year: 2015, Article Sequence Number: 0002601
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• ### IEEE Transactions on Applied Superconductivity publication information

Publication Year: 2015, Article Sequence Number: 0002701
| PDF (135 KB)

Publication Year: 2015, Article Sequence Number: 0002802
| PDF (113 KB)
• ### IEEE Transactions on Applied Superconductivity subject categories for article numbering

Publication Year: 2015, Article Sequence Number: 0002901
| PDF (97 KB)
• ### IEEE Transactions on Applied Superconductivity information for authors

Publication Year: 2015, Article Sequence Number: 0003001
| PDF (30 KB)
• ### Performance Analysis of Direct Gold Wire Bonding on Superconducting $\mbox{YBa}_{2}\mbox{Cu}_{3}\mbox{O}_{7\mbox{-}x}$ Thin Films and Devices

Publication Year: 2015, Article Sequence Number: 1200206
Cited by:  Papers (1)
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The performance analysis of direct gold (Au) wire bonding on YBa2Cu3O7-x (YBCO) thin films was performed. In a number of applications, YBCO thin films and devices are wire bonded on chip carriers or printed circuit boards for further electronic connections via the metallization of the contact pads of YBCO thin films. Although metallization for contact wiring is gen... View full abstract»

• ### Dual-Band High-Temperature Superconducting Bandpass Filter Using Quint-Mode Stub-Loaded Resonators

Publication Year: 2015, Article Sequence Number: 1501410
Cited by:  Papers (8)
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Two dual-band high-temperature superconducting (HTS) bandpass filters (BPFs) using quint-mode stub-loaded resonators are presented. The quint-mode resonator is formed by loading four open-circuit stubs in shunt. By properly adjusting the lengths of the resonator, three transmission zeros separate five resonant frequencies into two groups. The first three resonant frequencies form the first passban... View full abstract»

• ### Multichannel ULF-MRI Study in Magnetic Unshielded Urban Laboratory Environment

Publication Year: 2015, Article Sequence Number: 1602804
Cited by:  Papers (1)
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Ultralow field (ULF) magnetic resonance imaging (MRI), which obtains images in the static magnetic field typically on the orders of tens to hundreds of microteslas, exhibits some potential advantages. However, the ULF-MRI system faces the challenge of poor signal-to-noise ratio (SNR). In addition to the introduction of a prepolarization technique and the usage of extremely sensitive superconductin... View full abstract»

• ### Two-Pole Integrator SQUID Readout Electronics With High Slew Rate and Small Closed-Loop Frequency Response Peak

Publication Year: 2015, Article Sequence Number: 1602903
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Direct-readout electronics with high slew rate and small closed-loop frequency response peak is described by using a two-pole integrator for superconducting quantum interference device (SQUID) applications. In our experiment, a weakly damped niobium-SQUID magnetometer with a large flux-to-voltage transfer coefhcient ∂V/∂Φ of about 380 μV/Φ0 was used to... View full abstract»

• ### Study of the Maglev Performance of the Side- Mounted High-Temperature Superconductor Maglev Rotating System

Publication Year: 2015, Article Sequence Number: 3601406
Cited by:  Papers (1)
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A new type of maglev system, a side-mounted high-temperature superconductor (HTS) maglev system, designed to run at high speed in an evacuated circular tube is presented in this paper. The levitation performance of the system was investigated. Results show that the stability of the maglev system is strongly dependent on the arrangements of HTS bulks along the center of permanent-magnet guideway. F... View full abstract»

• ### A Dynamical Stiffness Evaluation Model for a Ring-Shaped Superconductor Magnetic Bearing System

Publication Year: 2015, Article Sequence Number: 3601507
Cited by:  Papers (8)
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In this paper, a rotor-permanent magnet inside a ring-shaped superconductor magnetic bearing system is modeled and simulated using a dynamic stiffness approach. Analytical expressions of the stiffness effects are defined on the basis of a magnetic potential obtained with a frozen-image concept. For engineering applications, the rotor dynamics must be considered with the effective stiffness of the ... View full abstract»

• ### The Effect of Magnetic Field Distribution and Pole Array on the Vertical Levitation Force Properties of HTS Maglev Systems

Publication Year: 2015, Article Sequence Number: 3601607
Cited by:  Papers (7)
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In this paper, the levitation force measurements have been carried out by the magnetic force measurement system under both field-cooling and zero-field-cooling regimes, whereas the magnetic field distribution over the permanent-magnet guideway (PMG) was calculated by numerical analysis based on the finite-element method. It was shown in this study that the vertical levitation capability and stabil... View full abstract»

• ### Controllability of Flux-Pinned Docking Interface

Publication Year: 2015, Article Sequence Number: 3601707
Cited by:  Papers (1)
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The flux-pinned docking interface (FPDI) is composed of an YBCO high-temperature superconductor bulk and an electromagnet (EM). They are installed on the spherical target spacecraft module and another spherical tracking spacecraft module, respectively. This novel docking interface can enable the active control of the docking process to become an additional option rather than a necessary option. Th... View full abstract»

• ### Tradeoff Modeling of Superconducting Levitation Machines: Theory and Experiment

Publication Year: 2015, Article Sequence Number: 3601810
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Based on the critical state model for the superconducting components, we develop a set of theoretical tools that allow extracting relevant engineering parameters of a superconducting levitation machine. We provide a number of analytical and numerical expressions for the evaluation of the electromagnetic quantities, energies, and forces in 2-D problems. This assumption includes the following: 1) ro... View full abstract»

• ### Analysis of Uncertainties in Protection Heater Delay Time Measurements and Simulations in Nb3Sn High-Field Accelerator Magnets

Publication Year: 2015, Article Sequence Number: 4004212
Cited by:  Papers (1)
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The quench protection of superconducting high-field accelerator magnets is presently based on protection heaters, which are activated upon quench detection to accelerate the quench propagation within the winding. Estimations of the heater delay to initiate a normal zone in the coil are essential for the protection design. During the development of Nb3Sn magnets for the LHC luminosity up... View full abstract»

• ### Magnesium-Diboride-Based Prototype ELM Coil Fabrication, DC Characterization, and AC Transport-Current-Induced Loss Estimation: A Feasibility Study

Publication Year: 2015, Article Sequence Number: 4701307
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In this paper, a trial on fabrication and characterization of the prototype edge-localized-mode coil employing MgB2 strands has been attempted. The magnetic flux profile of the coil in dc current for a typical transport current is generated using finite-element modeling software. The coil is wound, heat treated, impregnated, and characterized subsequently in dc condition, as well as in ... View full abstract»

• ### Design and Development of 16-kA HTS Current Lead for HMFL 45-T Magnet

Publication Year: 2015, Article Sequence Number: 4802906
Cited by:  Papers (2)
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The High Magnetic Field Laboratory developed a 45-T hybrid magnet. To test this magnet, a new pair of high-temperature superconducting current leads rated at 16 kA were developed. This paper addresses the design and test of those current leads. To minimize heat loads at the cold end, Bi-2223 high-temperature superconductors were used. The foil-type main heat exchanger is cooled by 77-K liquid nitr... View full abstract»

• ### Analysis of Inductance Calculation of Coaxial Circular Coils With Rectangular Cross Section Using Inverse Hyperbolic Functions

Publication Year: 2015, Article Sequence Number: 4901209
Cited by:  Papers (2)
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This paper presents an improved method using inverse hyperbolic functions to calculate the mutual inductance and self-inductance of coaxial circular coils with rectangular cross section and uniform current density in air. The method is simple, fast, and easy to use, which only entails numerical integration with one variable. The method is derived by using inverse hyperbolic functions but can be ex... View full abstract»

• ### Development of a Movable HTS SMES System

Publication Year: 2015, Article Sequence Number: 5701109
Cited by:  Papers (7)
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A 600-V/150-kJ/100-kW conduction-cooled high-temperature superconducting (HTS) magnetic energy storage (SMES) system is developed. In this paper, the configuration of the HTS SMES is introduced. The magnet is a solenoid type, which uses two kinds of HTS tapes, and cooled to about 20 K. A series of laboratory experiments and field tests are carried out to evaluate the performance of the SMES system... View full abstract»

• ### Delamination Strength of the Soldered Joint in YBCO Coated Conductors and Its Enhancement

Publication Year: 2015, Article Sequence Number: 6606109
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We now report the delamination properties of soldered lap joints in YBa2Cu3O7-x coated conductors (YBCO CCs) without removing the metallic stabilizer. The delamination strength, current, and resistance behaviors in the lap joints under transverse tension are investigated at 77 K. It is found that the current shows no degradation (95% of the critical current Ic... View full abstract»

• ### Design of Practical Superconducting DC Power Cable With REBCO Coated Conductors

Publication Year: 2015, Article Sequence Number: 6606207
Cited by:  Papers (2)
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The authors proposed an innovative superconducting dc power cable using the longitudinal magnetic field effect, i.e., a significant enhancement of the critical current density of a superconductor in a parallel magnetic field. It was expected that a cable with a high current-carrying capacity could be realized with REBa2Cu3O7-σ (REBCO) coated conductors. Howe... View full abstract»

• ### Influences of Yb Doping on the Structure and Superconducting Properties of Bi-2212 Single Crystals

Publication Year: 2015, Article Sequence Number: 7200407
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Bi2Sr2-xYbxCaCu2O8+O8+δ (x = 0.00, 0.05, 0.10, and 0.20) single crystals with Yb substitution at the Sr sites are successfully obtained by the self-flux method. The single crystal with doping content x = 0.01 exhibits the highest critical temperature (Tc) and critical current density (Jc) values. The inf... View full abstract»

• ### Synthesis of Ultrafine High- $T_{C}$ Superconducting $\mbox{GdBa}_2\mbox{Cu}_3\mbox{O}_{7\mbox{-}{x}}$ Powder

Publication Year: 2015, Article Sequence Number: 7200506
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GdBa2Cu3O7-x (Gd123) nanowires were synthesized using a modified sol-gel method in the presence of an excellent surfactant benzene tricarboxylic acid. The obtained results revealed that the decomposition of BaCO3 and subsequent formation of the pure Gd123 phase complete after recalcination process at 900°C. Structural study using Rietveld refineme... View full abstract»

• ### Resistivities Along the $c$-Axis and in the $ab$ Plane of Cobalt Oxide Superconductors

Publication Year: 2015, Article Sequence Number: 7400203
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The cobalt oxide superconductor NaxCoO2·yH2O is investigated herein. Given that it is difficult to obtain a net attractive interaction between conducting electrons in the singlet case for this material, it is reported here that the Coulomb interaction for triplet pairs can be reduced by exchange interactions, resulting in attraction between the pairs. Resist... View full abstract»

• ### Determination of $J_C$ and $n$-Value of HTS Pellets by Measurement and Simulation of Magnetic Field Penetration

Publication Year: 2015, Article Sequence Number: 8001008
Cited by:  Papers (6)
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Complete penetration magnetic field BP is a feature of a superconducting sample submitted to an applied magnetic field. It is very important to know this for applications such as an electrical motor or levitation. The electric E-J characteristics of a high-temperature superconductor (HTS) bulk is generally described by a power law. The main purpose of this paper is to investigate the influence of ... View full abstract»

## Aims & Scope

IEEE Transactions on Applied Superconductivity contains articles on the applications of superconductivity and other relevant technology.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Britton L. T. Plourde
Syracuse University
bplourde@syr.edu
http://asfaculty.syr.edu/pages/phy/plourde-britton.html