# IEEE Transactions on Applied Superconductivity

### Early Access Articles

Early Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.

## Filter Results

Displaying Results 1 - 22 of 22
• ### Hybrid Magnetic Sensor Combined with a Tunnel Magnetoresistive Sensor and High-Temperature Superconducting Magnetic-Field-Focusing Plates

Publication Year: 2018, Page(s): 1
| | PDF (739 KB)

Magnetoresistive (MR) sensors are widely used, particularly in consumer products. However, in applications requiring extremely sensitive magnetic sensors, superconducting quantum interference devices (SQUIDs) are primarily used. In this study, we develop a hybrid magnetic sensor by combining an MR sensor with two high-temperature superconducting (HTS) plates to achieve sensitivity that lies betwee... View full abstract»

• ### Correlations between Superconducting Characteristics and Structure of MgB2-based Materials, ab-initio Modeling

Publication Year: 2018, Page(s): 1
| | PDF (789 KB)

The influence of technological parameters (composition of precursor powders, type of additions, temperature, pressure) on the superconducting characteristics (transition temperature, critical current density, critical magnetic fields) of MgB2-based materials (bulk, wires, and thin films) and the correlation with their microstructure were studied. Microstructural observations are in good agreement ... View full abstract»

• ### Influence of Processing Conditions on the Microstructure and Physical Properties in Infiltration Growth Processed Mixed REBCO Bulk Superconductors

Publication Year: 2018, Page(s): 1
| | PDF (742 KB)

In this present work, we investigated the effect of liquid phase (LP) source mass on crystal growth, structure, microstructure and magnetic properties of infiltration growth processed (Gd, Dy)Ba2Cu3O7-x ((Gd, Dy)BCO) bulk superconductors. The mixture of Er-123 + Ba3Cu5O8 (035) was chosen as the LP source and the ratio of 211: LP mass (wt.%) was varied between 1:1 to 1:1.5. All samples were crystal... View full abstract»

• ### Length Uniformity of the Angular Dependences of Ic and n of Commercial REBCO Tapes with Artificial Pinning at 77 K

Publication Year: 2018, Page(s): 1
| | PDF (2098 KB)

One of the most significant and basic parameters connected with the performance of rare earth-based high temperature (HTS) coated conductor tapes is the angular dependence of their critical current. Because of the complex tape architecture, com-plicated production process and long length of coated super-conducting tapes, the Ic(B) angular dependence homogeneity of the superconductor along the cond... View full abstract»

• ### Subharmonic resonance in magnetic levitation of the high temperature superconducting bulks YBa$_2$Cu3O$_{7-x}$under harmonic excitation

Publication Year: 2018, Page(s): 1
| | PDF (4219 KB)

High temperature superconducting (HTS) bulk YBa$_2$Cu3O$_{7-x}$(YBCO) can achieve self-stable magnetic levitation (maglev) over a permanent magnet (PM) for its inherent flux pinning effect, which has considerable potential for engineering applications. The complicated vibration response, however, is lack of enough research for the nonline... View full abstract»

• ### Modeling of Quench Behavior of YBa$_{2}$Cu$_{3}$O$_{7-\delta}$Pancake Magnets and Distributed Temperature Sensing-based Quench Detection for Operating Temperature 30 K - 77 K

Publication Year: 2018, Page(s): 1
| | PDF (2688 KB)

A 2D/3D mixed electrothermal model is proposed for the simulation of quench behavior of high temperature superconducting (HTS) pancake magnets, where a 2D electrothermal model is proposed to simulate the YBa$_{2}$Cu$_{3}$O$_{7-\delta}$(YBCO) subcoil and is coupled to the remaining parts of the YBCO magnet, wh... View full abstract»

• ### Improvement of Performance of SQUID Magnetometer System for Highly Sensitive Geomagnetic Field Measurements

Publication Year: 2018, Page(s): 1
| | PDF (3260 KB)

We have been developing a low-temperature superconducting quantum interference device (SQUID) magnetometer system aiming at highly sensitive geomagnetic field measurements with an intended magnetic field noise floor of approximately 10 fT/$\sqrt{}$Hz in the frequency range below 100 Hz. However, our previous system using SQUID magnetometers with the noise of<... View full abstract»

• ### Multi-Scale Method for AC Loss Calculation of HTS Coated Conductors with Magnetic Substrate

Publication Year: 2018, Page(s): 1
| | PDF (983 KB)

The AC loss calculation problem is the key issue for superconducting magnet. The existing numerical models do not consider the magnetic properties of the substrate when calculating the transport AC loss of HTS coated conductors, In fact, the unacceptable time and memory consumption makes the ac loss calculation a tough task when considering the magnetic properties of the substrate. This paper intr... View full abstract»

• ### Stainless Steel as Substrate Material for High Temperature Superconducting Tapes Processed via the ISD MgO Route

Publication Year: 2018, Page(s): 1
| | PDF (1721 KB)

2nd generation high temperature superconducting (HTS) tapes strongly rely on the substrate material, in many cases Hastelloy C276 (“H-C276”). In order to ameliorate performance (and reduce the price) of superconducting tapes, replacement of H-C276 has been investigated. In the present work, the potential of the readily available austenitic stainless steels X2CrNiMo17-12-2 (“CrNiMo”) and X11CrNiMnN... View full abstract»

• ### Effects of Fullerene Addition on Pinning Properties and Microstructures in Melt-textured Y-Ba-Cu-O Superconductors

Publication Year: 2018, Page(s): 1
| | PDF (637 KB)

Bulk Y-Ba-Cu-O superconductors have significant potential for engineering applications due to high critical current density ($J_{c}$) and high trapped magnetic fields, which is attributed to the presence of pinning centers such as micro-sized${\rm Y_{2}BaCuO_{5}}$(Y211) inclusions. The introduction of nano-sized particles is known to func... View full abstract»

• ### Influence of$J_{c}(B, T)$Characteristics on the Pulsed Field Magnetization of REBaCuO Disk Bulks

Publication Year: 2018, Page(s): 1
| | PDF (580 KB)

The trapped field properties during pulsed-field magnetization (PFM) have been investigated numerically using three different assumptions relating to the$J_{c}(B, T)$characteristics (Jirsa, Kim and Bean models) and compared with experimental results. The trapped field properties using the Jirsa model with the so-called ‘peak effect’, in which a realistic... View full abstract»

• ### Quench Behavior Comparison Between Solid Nitrogen and Conduction Cooled REBCO Coated Conductor

Publication Year: 2018, Page(s): 1
| | PDF (791 KB)

The quench properties for REBCO conductor in$SN_{2}$and conduction cooled system are studied. The normal zone propagation velocity determined by voltage, temperature and strain methods are compared to demonstrate the feasibility of strain method to detect the quench of REBCO conductor. View full abstract»

• ### Electrotechnical features and theoretical modellings of the 100-m 22.9-kV/50-MVA BSCCO cable system

Publication Year: 2018, Page(s): 1
| | PDF (703 KB)

Because of a much higher power density than a conventional underground cable, several high temperature superconductor (HTS) cables with different voltages and designs have been world-widely developed and demonstrated in a power grid. The 100-m 22.9kV / 50MVA BSCCO cable system developed for long-term demonstration has been tested during phase I of three years, after being installed at Gochang Test... View full abstract»

• ### A Novel Configuration for Compact HTS CQ Structure Linear Phase Filter Design

Publication Year: 2018, Page(s): 1
| | PDF (639 KB)

In this paper, a novel trapezoidal meander-line resonator (TMLR) is proposed to design compact high order high temperature superconducting (HTS) linear phase bandpass filters with cascaded quadruplet (CQ) structures. By changing the conventional rectangle half-wavelength meander-line microstrip resonator into a trapezoidal resonator, unnecessary cross coupling between non-adjacent resonators in th... View full abstract»

• ### Design, fabrication and test of a 2T superconducting dipole prototype by using tilted solenoids

Publication Year: 2018, Page(s): 1
| | PDF (591 KB)

A novel design of the superconducting dipole magnet which superposes two concentric and oppositely titled solenoids with respect to the bore axis is briefly described. A dipole magnet prototype of 2 T is designed and constructed based on this conception. The prototype magnet consists of four layers tilted solenoids by using a 7-strands NbTi superconducting cable. Its operating current is up to 3 k... View full abstract»

• ### Feasible Applications of Bulk HTS Magnets and Magnetic Field-Capturing Characteristics in Their Activation Processes

Publication Year: 2018, Page(s): 1
| | PDF (1022 KB)

Feasible applications in the industrial regions for the bulk HTS magnets have been investigated in two categories of the strong magnetic field generators and the magnetic levitation devices by active and passive field-trapping, respectively. when we adopt the system to the active field generators, magnetization procedures are necessary. The authors have studied the field-capturing abilities of the... View full abstract»

• ### Heat Treatment Effect on the Microstructure and Properties of a High-Strength and High Conductivity Cu-Nb-Cu Microcomposite

Publication Year: 2018, Page(s): 1
| | PDF (1284 KB)

Cu-Nb-Cu microcomposite reinforced by Nb tube was successfully fabricated by accumulative drawing and bundling process. When the strength of the Cu-Nb-Cu composite reaches above 1 GPa, its conductivity can reaches 67% IACS. The annealing effects on the microstructure and properties of Cu-Nb-Cu microcomposite have been thoroughly discussed. Annealing temperature at 750°C can lead to an obviously ch... View full abstract»

• ### Dynamic Characteristics of the Manned Hybrid Maglev Vehicle Employing Permanent Magnetic Levitation (PML) and Superconducting Magnetic Levitation (SML)

Publication Year: 2018, Page(s): 1
| | PDF (1240 KB)

A manned hybrid maglev vehicle employing permanent magnetic levitation (PML) and superconducting magnetic levitation (SML) was developed. It is mainly composed of a PML part, an SML part, and a maglev frame. The PML part with repulsive force is designed to support the main load and the SML part with pinning forces is used to guarantee the lateral stability. The maglev frame is designed to support ... View full abstract»

• ### Influence of the Substrate Surface Morphology on the Texture of Magnesium Oxide Films grown via Inclined Substrate Deposition

Publication Year: 2018, Page(s): 1
| | PDF (2218 KB)

For the deposition of inclined substrate deposited (ISD) MgO with application as texture buffer in high temperature superconducting wires, the surface morphology of the metallic substrate plays a crucial role. The influence of various substrate surface morphologies (polished, etched and rolled surfaces) is investigated. It is found that morphologies with a preferred orientation perpendicular to th... View full abstract»

• ### Magnetizing performance evaluation of HTS bulk magnet using a 12 K refrigerator with high cooling capacity

Publication Year: 2018, Page(s): 1
| | PDF (1373 KB)

We study a high magnetic field generation using HTS bulk magnets activated by pulsed-field magnetization (PFM) with the goal of their industrial application. In our previous study, a single-stage GM-type refrigerator and a dual-stage GM-type refrigerator with air-cooled-type compressor and a Stirling refrigerator were used for cooling an HTS bulk aiming at simplifying the bulk magnet system. Now, ... View full abstract»

• ### Mechanical Properties of Superconducting (Gd,Y)BaCuO Large Single-Grain Material Fabricated by RE Compositional Gradient Technique

Publication Year: 2018, Page(s): 1
| | PDF (541 KB)

In order to investigate the mechanical properties of a (Gd,Y)BaCuO large single-grain bulk material, bending tests were carried out at room temperature for the specimens cut from the bulk material. A precursor which consisted of three regions with different Gd and Y contents was used for the fabrication of the large single-grain bulk material in order to overcome the un-desirable nucleation apart ... View full abstract»

• ### The Present Status and Progress of the CHMFL 40 T Hybrid Magnet

Publication Year: 2018, Page(s): 1
| | PDF (177 KB)

The development of new high magnetic field facilities in the Chinese High Magnet Field Laboratory (CHMFL) will soon be completed according to the present situation. For the construction of the 40 T hybrid magnet, which will be the highest magnetic field facility in China, great progress has been achieved so far, for example, the engineering design of the resistive insert composed of six Florida-Bi... 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