352 citations · 2k across the 25 of their papers we have counts for
25 papers
Tailored joint fabrication process derived ultra-low resistance MgB2 superconducting joint
Dipak Patel, Akiyoshi Matsumotoa, Hiroaki Kumakura +5
We report an ultra-low resistance superconducting joint using unreacted multifilament MgB2 wires produced by tailoring the powder compaction pressure within the joint with heat tre…
Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides
Hideo Hosono, Keiichi Tanabe, Eiji Takayama-Muromachi +6
This paper reviews the highlights of a 4-years-long research project supported by the Japanese Government to explore new superconducting materials and relevant functional materials…
High transport Jc in magnetic fields up to 28 T of stainless steel/Ag double sheathed Ba122 tapes fabricated by scalable rolling process
Zhaoshun Gao, Kazumasa Togano, Akiyoshi Matsumoto +1
The recently discovered iron-based superconductors with very high upper critical field and small anisotropy have been regarded as a potential candidate material for high field appl…
Novel nanometer-level uniform amorphous carbon coating for boron powders by direct pyrolysis of coronene without solvent
ShuJun Ye, MingHui Song, Hiroaki Kumakura
A 3 nm coronene coating and a 4 nm amorphous carbon coating with uniform shell-core encapsulation structure for nanosized boron (B) powders are formed by a simple process, where co…
Achievement of practical level critical current densities in PIT Ba1-xKxFe2As2/Ag tapes by conventional cold mechanical deformation
Zhaoshun Gao, Kazumasa Togano, Akiyoshi Matsumoto +1
We found that transport critical current density (Jc) of the Ba1-xKxFe2As2/Ag tapes is significantly enhanced by the combination process of cold flat rolling and uniaxial pressing.…
Large enhancement of transport critical current density of ex-situ PIT Ag/(Ba,K)Fe2As2 tapes achieved by applying cycles of cold deformation and heat treatment
Kazumasa Togano, Zhaoshun Gao, Akiyoshi Matsumoto adn Hiroaki Kumakura
We report that high transport critical current density exceeding 104 A/cm2 at 4.2 K and 10 T can be obtained with good reproducibility for Ag sheathed (Ba,K)Fe2As2 (Ba 122) tapes b…