D-Index & Metrics Best Publications

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Materials Science D-index 52 Citations 7,884 332 World Ranking 6597 National Ranking 419

Overview

What is he best known for?

The fields of study he is best known for:

  • Composite material
  • Oxygen
  • Organic chemistry

His main research concerns Superconductivity, Condensed matter physics, Composite material, Fabrication and Critical current. Hiroaki Kumakura has researched Superconductivity in several fields, including Tube, Metallurgy, Boron and Analytical chemistry. His work carried out in the field of Condensed matter physics brings together such families of science as Sintering and Impurity.

His work on Composite material deals in particular with Composite number, Microstructure and Melting point. His research integrates issues of Scanning electron microscope, High-temperature superconductivity and Heat treated in his study of Composite number. Mineralogy, Quenching and FOIL method is closely connected to Oxide in his research, which is encompassed under the umbrella topic of Microstructure.

His most cited work include:

  • Superconducting properties of MgB2 bulk materials prepared by high-pressure sintering (287 citations)
  • Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides (221 citations)
  • Partial Melt Growth Process of Bi2Sr2Ca1Cu2Ox Textured Tapes on Silver (173 citations)

What are the main themes of his work throughout his whole career to date?

His scientific interests lie mostly in Superconductivity, Composite material, Condensed matter physics, Microstructure and Critical current. His Superconductivity study combines topics from a wide range of disciplines, such as Tube and Analytical chemistry. His Composite material research is multidisciplinary, incorporating perspectives in Oxide, Annealing and Nanotechnology.

Within one scientific family, Hiroaki Kumakura focuses on topics pertaining to Magnetization under Condensed matter physics, and may sometimes address concerns connected to Hysteresis. Hiroaki Kumakura focuses mostly in the field of Microstructure, narrowing it down to matters related to Phase and, in some cases, Impurity. His Critical current research integrates issues from Core and Heat treated.

He most often published in these fields:

  • Superconductivity (60.91%)
  • Composite material (37.39%)
  • Condensed matter physics (35.69%)

What were the highlights of his more recent work (between 2013-2021)?

  • Superconductivity (60.91%)
  • Composite material (37.39%)
  • Microstructure (27.76%)

In recent papers he was focusing on the following fields of study:

Hiroaki Kumakura focuses on Superconductivity, Composite material, Microstructure, Condensed matter physics and Liquid hydrogen. He performs multidisciplinary study in the fields of Superconductivity and Fabrication via his papers. His work deals with themes such as Critical current, Residual resistivity, Boron and Charge carrier, which intersect with Composite material.

His Microstructure research includes elements of Core, Critical field, Sintering, Swaging and Anisotropy. His research in the fields of Superconducting magnet overlaps with other disciplines such as Diffusion process. His Liquid hydrogen study combines topics in areas such as Nuclear engineering and Slosh dynamics.

Between 2013 and 2021, his most popular works were:

  • Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides (221 citations)
  • Achievement of practical level critical current densities in Ba1−xKxFe2As2/Ag tapes by conventional cold mechanical deformation (90 citations)
  • New 25 T Cryogen-Free Superconducting Magnet Project at Tohoku University (44 citations)

In his most recent research, the most cited papers focused on:

  • Composite material
  • Oxygen
  • Organic chemistry

Hiroaki Kumakura mostly deals with Superconductivity, Composite material, Critical current, Condensed matter physics and Fabrication. His research in Superconductivity intersects with topics in Optoelectronics, Impurity and Microstructure. The concepts of his Microstructure study are interwoven with issues in Homogeneity, Critical field and Anisotropy.

The various areas that he examines in his Critical current study include Cylinder stress, Ferromagnetic material properties, Deformation and Microscopy. His Condensed matter physics study frequently draws connections to adjacent fields such as Electrical conductor. While working on this project, Hiroaki Kumakura studies both Fabrication and Nanotechnology.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Superconducting properties of MgB2 bulk materials prepared by high-pressure sintering

Y. Takano;H. Takeya;H. Fujii;H. Kumakura.
Applied Physics Letters (2001)

457 Citations

Partial Melt Growth Process of Bi2Sr2Ca1Cu2Ox Textured Tapes on Silver

Jun-ichiro Kase;Kazumasa Togano;Hiroaki Kumakura;Daniel R. Dietderich.
Japanese Journal of Applied Physics (1990)

258 Citations

Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides

Hideo Hosono;Keiichi Tanabe;Eiji Takayama-Muromachi;Hiroshi Kageyama.
Science and Technology of Advanced Materials (2015)

258 Citations

MgB2 films with very high critical current densities due to strong grain boundary pinning

Hitoshi Kitaguchi;Akiyoshi Matsumoto;Hiroaki Kumakura;Toshiya Doi.
Applied Physics Letters (2004)

210 Citations

Effect of aromatic hydrocarbon addition on in situ powder-in-tube processed MgB2 tapes

H Yamada;M Hirakawa;H Kumakura;H Kitaguchi.
Superconductor Science and Technology (2006)

199 Citations

Effect of SiO2 and SiC doping on the powder-in-tube processed MgB2 tapes

A Matsumoto;H Kumakura;H Kitaguchi;H Hatakeyama.
Superconductor Science and Technology (2003)

188 Citations

Evaluation of connectivity, flux pinning, and upper critical field contributions to the critical current density of bulk pure and SiC-alloyed MgB2

A. Matsumoto;H. Kumakura;H. Kitaguchi;B. J. Senkowicz.
Applied Physics Letters (2006)

168 Citations

Microscopic role of carbon on MgB2 wire for critical current density comparable to NbTi

Jung Ho Kim;Sangjun Oh;Yoon Uk Heo;Satoshi Hata.
Npg Asia Materials (2012)

165 Citations

Large Transport Critical Current Densities of Ag Sheathed (Ba,K)Fe2As2+Ag Superconducting Wires Fabricated by an ex-situ Powder-in-Tube (PIT) Process

Kazumasa Togano;Akiyoshi Matsumoto;Hiroaki Kumakura.
arXiv: Superconductivity (2011)

161 Citations

Control of nano carbon substitution for enhancing the critical current density in MgB2

Wai Kong Yeoh;Jung Ho Kim;Josip Horvat;Xun Xu.
Superconductor Science and Technology (2006)

149 Citations

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