559 citations · 854 across the 14 of their papers we have counts for
14 papers
Observation of Uniform Supercurrent Flow in Polycrystalline K-doped Ba122 by Combined Magneto-optical Imaging and Finite-element Modeling
Shota Ishiwata, Sunseng Pyon, Tsuyoshi Tamegai +2
Macroscopic current uniformity in a (Ba,K)Fe2As2 bulk sample produced by a process that demonstrated high trapped magnetic fields was evaluated through a comparative experimental a…
Fully-staggered-array bulk Re-Ba-Cu-O short-period undulator: large-scale 3D electromagnetic modelling and design optimization using A-V and H-formulation methods
Kai Zhang, Mark Ainslie, Marco Calvi +2
The development of a new hard x-ray beamline I-TOMCAT equipped with a 1-meter-long short-period bulk high-temperature superconductor undulator (BHTSU) has been scheduled for the up…
Modeling the charging process of a coil by an HTS dynamo-type flux pump
Asef Ghabeli, Mark Ainslie, Enric Pardo +2
The high- superconducting (HTS) dynamo exploits the nonlinear resistivity of an HTS tape to generate a DC voltage when subjected to a varying magnetic field. This leads to the…
Fast and efficient critical state modelling of field-cooled bulk high-temperature superconductors using a backward computation method
Kai Zhang, Mark Ainslie, Marco Calvi +3
A backward computation method has been developed to accelerate modelling of the critical state magnetization current in a staggered-array bulk high-temperature superconducting (HTS…
A new benchmark problem for electromagnetic modelling of superconductors: the high-Tc superconducting dynamo
Mark Ainslie, Francesco Grilli, Loic Queval +7
The high-Tc superconducting (HTS) dynamo is a promising device that can inject large DC supercurrents into a closed superconducting circuit. This is particularly attractive to ener…
Composite stacks for reliable > 17 T trapped fields in bulk superconductor magnets
Kai Yuan Huang, Yunhua Shi, Jan Srpčič +10
Trapped fields of over 20 T are, in principle, achievable in bulk, single-grain high temperature cuprate superconductors. The principle barriers to realizing such performance are,…
Electromagnetic design of a superconducting electric machine with bulk HTS material
Roman Bause, Mark D. Ainslie, Matthias Corduan +3
The use of high-temperature superconductors in electric machines offers potentially large gains in performance compared to conventional conductors, but also comes with unique chall…
Demagnetization of cubic Gd-Ba-Cu-O bulk superconductor by cross-fields: measurements and 3D modelling
M. Kapolka, J. Srpcic, D. Zhou +3
Superconducting bulks, acting as high-field permanent magnets, are promising for many applications. An important effect in bulk permanent magnets is crossed-field demagnetization,…
A portable magnetic field of > 3 T generated by the flux jump assisted, pulsed field magnetisation of bulk superconductors
Difan Zhou, Mark D. Ainslie, Yunhua Shi +5
A trapped magnetic field of greater than 3 T has been achieved in a single grain GdBa2Cu3O7-δ (GdBaCuO) bulk superconductor of diameter 30 mm by employing pulsed field magnetisatio…
DC Characterization of a Circular, Epoxy-Impregnated High Temperature Superconducting (HTS) Coil
Di Hu, Mark D. Ainslie, Jordan P. Rush +2
Direct current (DC) characterization of high temperature superconducting (HTS) coils is important for HTS applications, such as electric machines, superconducting magnetic energy s…
A Trapped Field of 17.6 T in Melt-Processed, Bulk Gd-Ba-Cu-O Reinforced with Shrink-Fit Steel
John H. Durrell, Anthony R. Dennis, Jan Jaroszynski +8
The ability of large grain, REBaCuO [(RE)BCO; RE = rare earth] bulk superconductors to trap magnetic field is determined by their critical current. With high tr…
Design and market considerations for axial flux superconducting electric machine design
Mark D. Ainslie, Ashley George, Robert Shaw +4
In this paper, the authors investigate a number of design and market considerations for an axial flux superconducting electric machine design that uses high temperature superconduc…
Analysis of fields in an air-cored superconducting synchronous motor with an HTS racetrack field winding
Di Hu, Jin Zou, Tim J. Flack +3
High temperature superconducting (HTS) synchronous motors can offer significant weight and size reductions, as well as improved efficiency, over conventional copper-wound machines…
Design and Performance Analysis of a 2.5 MW-Class HTS Synchronous Motor for Ship Propulsion
Jin Zou, Di Hu, Tim J. Flack +3
The development of cryogenic technology and high temperature superconducting (HTS) materials has seen continued interest worldwide in the development of HTS machines since the late…