村上　雅人
材料工学科 (工学部)
教授
超伝導材料研究室
■専門分野
材料科学、超伝導
■研究の内容
■研究室分野キーワード
■関連業種
超伝導材料を利用すると、無制御で物体を空中に浮上させ、自由に回転させることが可能です。また、磁石回路を工夫すると、回転トルクを非接触で伝達することも可能となります。このような技術を利用して、摩擦のないベアリングやエネルギー貯蔵用のフライホイール、回転力伝達装置などの開発をしています。 超伝導材料は、非常に強力な磁石となることも可能です。永久磁石の10倍以上の強さの磁場は、多くの電動機器に応用可能です。
材料・化学
電気機械器具製造業
セラミックス製品製造業
電気・ガス・熱供給・水道業
■教員研究テーマ
高温超伝導、形状記憶合金、複雑系、磁性材料
■相談可能な分野
■保有機器
■研究室のスタンス
ベアリング
磁気分離
モータ
発電機
攪拌機
NMR
ケミカルポンプ
エネルギー貯蔵用フライホイール
ドラッグデリバリーシステム
超伝導マグネット（3T）
電気炉
磁場分布測定装置
オートグラフ
熱分析装置
サーモグラフィー
■主な著書
  • はじめての整数論（2010/12 海鳴社刊行 村上雅人 著）
  • エレメントハンター　エレメント大図鑑（2009/12 主婦と生活社刊行 村上雅人 著）
  • さあ数学をはじめよう（2009/09 海鳴社刊行 村上雅人 著）
  • なるほど量子力学III（2008/02 海鳴社刊行 村上雅人 著）
  • 超伝導の謎を解く（2007/07 C & R　研究所刊行 村上雅人 著）
  • なるほど量子力学II（2006/11 海鳴社刊行 村上雅人 著）
  • なるほど量子力学I（2006/02 海鳴社刊行 村上雅人 著）
  • Critical Currents in Superconductors（2005/06 Fuzanbo International刊行 M. Murakami 著）
  • なるほど微分方程式（2005/04 海鳴社刊行 村上雅人 著）
  • なるほど熱力学（2004/12 海鳴社刊行 村上雅人 著）
  • なるほど回帰分析（2004/03 海鳴社刊行 村上雅人 著）
  • なるほどベクトル解析（2003/10 海鳴社刊行 村上雅人 著）
  • なるほど確率論（2003/04 海鳴社刊行 村上雅人 著）
  • なるほど統計学（2002/10 海鳴社刊行 村上　雅人 著）
  • 日本人英語で大丈夫　たった２つ直せば（2002/06 海鳴社刊行 村上　雅人 著）
  • なるほど複素関数（2002/03 海鳴社刊行 村上　雅人 著）
  • なるほどフーリエ解析（2001/10 海鳴社刊行 村上　雅人 著）
  • 超伝導新時代（2001/07 工業調査会刊行 村上　雅人 著）
  • なるほど線形代数（2001/06 海鳴社刊行 村上　雅人 著）
  • なるほど微積分（2001/04 海鳴社刊行 村上　雅人 著）
  • なるほど虚数　理工系数学入門（2000/12 海鳴社刊行 村上　雅人 著）
  • 高温超伝導の材料科学（1999/09 内田老鶴圃刊行 村上雅人 著）
  • はじめてナットク超伝導（1999/09 講談社刊行 村上雅人 著）
  • Melt Processed High Temperature Superconductors（1992/02 World Scientific刊行 Masato Murakami 著）
■主な論文
  • High-temperature superconductor bulk magnets that can trap magnetic fields of over 17 tesla at 29K（2003/01 Nature）
  • 高温超伝導体における希土類元素の働き（2009/11 希土類）
  • Improvement in trapped fields by stacking bulk superconductors（2009/10 Physica C）
  • Analytical simulation of superconducting torque transferring mechanism（2009/10 Physica C）
  • Interaction of bulk superconductors with flywheel rings made of multiple permanent magnets（2009/10 Physica C）
  • Enhancement of magnetic coupling between permanent magnets and bulk superconductors through iron embedding（2009/10 Physica C）
  • Superconducting magnetic bearing for a flywheel energy storage system using superconducting coils and bulk superconductors（2009/10 Physica C）
  • Observation of record flux pinning in melt-textured NEG-123 superconductor doped by Nb, Mo, and Ti nanoparticles（2009/10 Physica C）
  • Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)xBa2Cu3Oz superconductors（2009/10 Physica C）
  • Flux pinning properties in a GdBa2Cu3O7-d bulk superconductor with the addition of magnetic alloy particles（2009/09 Superconductor Science and Technology）
  • Discussions about measurement results of levitation force and its time relaxation between GdBCO bulk superconductors and superconduting magnet with a high field gradient（2009/08 IEEE Transactions of Applied Superconductivity）
  • Magnetic torque transferring study for bulk high Tc superconductors and permanent magnets（2009/03 Journal of Physics）
  • Fe-30Mn-5Si-1Al1合金における組成変形様式の連続遷移（2009/03 日本金属学会誌）
  • The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys（2008/10 Materials Science and Engineering A）
  • Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors（2008/09 Physica C）
  • Quenching characteristics of electrical contacts using YBaCuO bulk superconductor（2008/09 Physica C）
  • A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system（2008/09 Physica C）
  • The microstructure and properties of single grain bulk Ag-doped Y-Ba-Cu^-O fabricated by seeded infiltration and growth（2008/09 Physica C）
  • Application of Woodceramics for Gas Sensor（2008/08 Proceedings of the fifth international workshop on Green Composites）
  • Materials processing, pulsed field magnetization and field-pole application to propulsion motors on Gd123 bulk superconductors（2008/08 Journal of Physics）
  • Thermal conductivity of Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks（2008/08 Superconductor Science and Technology）
  • Single domain YBCO/Ag bulk superconductors fabricated by seeded infiltration and growth（2008/08 Journal of Physics）
  • Homogenizing field-trapping capabilities of bulk Y-Ba-Cu-O superconductors using Ba-Cu-O oxide substrate for practical applications（2008/08 Journal of Physics）
  • Levitation at 90.2K and its applications（2008/07 International Journal of Condensed Matter Physics）
  • Mechanism of reversible transformation-induced plasticity of Fe-Mn-Si shape memory alloys（2008/06 Scripta Materialia）
  • Record flux pinning in melt-textured NEG-123 doped by Mo and Nb nanoparticles（2008/04 Applied Physics Letters）
  • AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloys（2008/04 Materials Transactions）
  • 論理的かつ簡潔な文章を目指せ（2008/04 化学）
  • Homogenizing field-trapping capabilities of bulk Y-Ba-Cu-O superconductors fabricated using Ba-Cu-O oxide substrates for practical applications（2008/04 Superconductor Science and Technology）
  • 高温超伝導体でのYの働き（2008/01 マテリアルインテグレーション）
  • 超伝導浮上（2007/12 低温工学）
  • Phase stability of MgO-doped Nd-Ba-Cu-O seed crystals for cold-seeded, OCMG processing（2007/11 Physica C）
  • Fabrication of textured YBCO bulks with artifical holes（2007/11 Physica C）
  • Electrical critical contact characteristics of YBaCuO（2007/11 Physica C）
  • An effect of interface condition on electrical contact characteristics using Y-Ba-Cu-O bulk superconductor（2007/11 Physica C）
  • Formation of defects in precursors for melt-textured RE-Ba-Cu-O superconductors and effect of oraganic binder addition（2007/11 Physica C）
  • Magnetic field distributions of stacked large single domain Gd-Ba-Cu-O bulk superconductors exceeding 140 mm inn diameter（2007/11 Physica C）
  • Measurements of the levitation forces for a bulk Gd-Ba-Cu-O superconductor in high magnetic fields（2007/11 Physica C）
  • Influence of Al on shape memory effect and twinning induced plasticity of Fe-Mn-Si-Al alloy（2007/10 Materials Transactions）
  • Fe-30Mn-5Si-1Al形状記憶合金の原子間力顕微鏡組織観察（2007/09 日本金属学会誌）
  • 液体攪拌の超伝導利用技術（2007/04 化学装置）
  • Processing and applications of bulk RE-Ba-Cu-O superconductors（2007/03 International Journal of Applied Ceramic Technology）
  • Temperature Dependency of Levitation Force and its relaxation in HTS（2007/02 IEEE Transaction of Applied Superconductivity）
  • 超電導バルク材料開発の現状（2007/01 工業材料）
  • Magnetic properties of melt-processed large single domain Gd-Ba-Cu-O bulk superconductor 140 mm in diameter（2007/01 Physica C）
  • Melt-processing of RE-Ba-Cu-O bulk superconductors employing organic binder added precursors（2006/10 Extended abstracts for 19th International Symposium on Superconductivity）
  • Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system（2006/10 IEEE Trans. Appl. Supercond.）
  • Interplay of YBCO and embedded 211 particles in melt-textured YBCO superconductors（2006/10 Jounal of Superconductivity）
  • Electrical contact characteristics of mechanically mated Y-Ba-Cu-O bulks with deposited metal layer（2006/10 Physica C）
  • 超電導ミキサーの開発（2006/09 電気学会研究会資料）
  • バルク超電導体の進展と応用可能性（2006/09 電気学会研究会資料）
  • Contact characteristics of mechanically mated Y-Ba-Cu-O bulks with a deposited metal layer（2006/07 ）
  • Improvement of the field-trapping capabilities of Nd-Ba-Cu-O superconductors using Ba-Cu-O substrates（2006/07 ）
  • Developments of superconducting mixers for medical applications（2006/07 ）
  • Recent progress on compositional nanstripes of REBa2Cu3O7-d (RE=Sm, Eu, Gd) sueprconductors（2006/07 Superconductor Science and Technology）
  • Grain orientation and distribution of Y2BaCuO4 phases in melt-textured YBCO with addition of depleted uranium oxides studied by EBSD（2006/07 Superconductor Science and Technology）
  • Superior growth orientation control via ZnO doping of large-grain LRE-Ba2-Cu3-Oy compounds grown with MgO seeds（2006/07 Superconductor Science and Technology）
  • Advances in enlargement of melt-textured Gd-Ba-Cu-O superconductors（2006/07 Superconductor Science and Technology）
  • Thermal conductivity and thermoelectric power of DyBaCuO superconductors（2006/07 Superconductor Science and Technology）
  • Study of single pulse-field magnetization of Gd-Ba-Cu-O bulk high-temperature superconductor with a split type of armature coil for rotating machinery（2006/07 Superconductor Science and Technology）
  • Moisture absorption and desorption chrabteristics for woodceramics（2006/04 Transactions of the Materials Research Society of Japan）
  • Development of Bean-Curd Refuse Origin Ceramics Materials（2006/04 Transactions of the Materials Research Society of Japan）
  • USERSを利用した高温超電導バルクの製造実験（2006/04 日本マイクログラビティ応用学会誌）
  • Effect of the chemical inhomogeneity on the vortex lattice observed by the Bitter decoration technique in high-Tc superconductors（2005/10 Physica C）
  • Analysis of mixed ternary LREBa2Cu3Oy nano-structures by STM and TEM（2005/10 Physica C）
  • Flux pinning property in a single crystal NdBa2Cu3Oy superconductor（2005/10 Physica C）
  • Nanostripes in SmBa2Cu3O7-d single crystals: Origin and peak effect（2005/10 Physica C）
  • Experiment for growing large Gd-Ba-Cu-O-Ag bulk superconductor（2005/10 Physica C）
  • Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors（2005/10 Physica C）
  • Design of microstructure in melt-textured bulk superconductors with the employment of granules containing ultra-fine Y2BaCuO5 particles（2005/10 Physica C）
  • Effect of Y-Ba-Cu-O-M (M = Zr, Sn and Ce) addition on the superconducting properties of melt-textured Y123 bulk（2005/10 Physica C）
  • Barium cerate as effective flux pinning centers in Y123 bulk materials（2005/10 Physica C）
  • Comparative study of grain orientation in melt-textured HTSC with different additions（2005/10 Physica C）
  • Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods（2005/10 Physica C）
  • Tensile testing method for rare earth based bulk superconductors at liquid nitrogen temperature（2005/10 Physica C）
  • Field trapping and magnetic levitation performances of large single-grain Gd-Ba-Cu-O at different temperatures（2005/10 Physica C）
  • Microstructure and superconducting properties of Dy-Ba-Cu-O bulk superconductors fabricated in different oxygen atmospheres（2005/10 Physica C）
  • Three-dimensional field measurements of levitated HTS and the modeling of the shielding current（2005/10 Physica C）
  • Flux pinning property in a single cystal NdBa2Cu3Oy superconductor（2005/10 Physica C）
  • Effect of preloading on the relaxation of the levitation force in bulk Y-Ba-Cu-O superconductors（2005/10 Physica C）
  • The effect of Gd2BaCuO5 nanoparticles on irreversibility fields of (Nd-Sm-Gd)Ba2Cu3O7-d（2005/08 Supercond. Sci. Technol.）
  • Interaction of multiple iron balls in magnetic fields（2005/04 Journal of Applied Physics）
  • Nanoscale Gd2BaCuO5 particles in (Sm0.33Eu0.33Gd0.33)Ba2Cu3Oy and magnetic levitation at 90.2 K（2005/03 Supercond. Sci. Technol.）
  • Melt-processed Gd-Ba-Cu-O superconductor with trapped field of 3 T at 77 K（2005/02 Supercond. Sci. Technol.）
  • Mechanism of a high irreversibility field for (Nd, Eu, Gd)Ba2Cu3O7 bulk（2005/02 IEEE Trans. Appl. Supercond.）
  • Spatial inhomogeneities of Gd-Ba-Cu-O bulk superconductors evaluated by different Hall probe scanning methods（2005/02 IEEE Trans. Appl. Supercond.）
  • Processing of high-performance (Gd, Y)-BaCu-O bulk superconductors with fine RE211 pinning centers（2005/02 IEEE Trans. Appl. Supercond.）
  • The development of melt-processed (Sm,Eu,Gd)Ba2Cu3O7-d single-domain superconductors for high field applications（2005/02 Supercond. Sci. Technol.）
  • Measurements of three-dimensional fields of bulk superconductors in varying external fields（2005/02 Supercond. Sci. Technol.）
  • Angular dependence of the peak effect and out-of-plane modulated compositional order in melt-processed (Sm,Eu,Gd)Ba2Cu3O7-d superconductors（2005/02 Supercond. Sci. Technol.）
  • Interactions of Y2BaCuO5 particles and the YBCO matrix within melt-textured YBCO samples studied by means of electron backscatter diffraction（2005/02 Supercond. Sci. Technol. vol. 18 no. 2, p. S158-S163, 2005）
  • Round robin tests on large grain melt processed Sm-Ba-Cu-O bulk superconductors（2005/02 Supercond. Sci. Technol.）
  • Superconducting levitation at 90 K--a base for construction of non-contact liquid oxygen pumps（2005/01 Supercond. Sci. Technol.）
  • Irreversible field determined by pulsed magnetization and compositional fluctuation of melt-processed (Sm,Eu,Gd)Ba2Cu3O7-d superconductors（2005/01 Supercond. Sci. Technol.）
  • 超伝導材料の技術変遷（2004/07 電気学会誌）
  • Levitation of an iron ball in midair without active control（2004/02 Journal of Applied Physics）
  • High critical current density in Y-Ba-Cu-O bulk superconductors with very fine Y211 particles（2004/02 Superconductor Science and Technology）
  • Joining of Y-Ba-Cu-O/Ag bulk superconductors using Er-Ba-Cu-O/Ag solder（2004/02 Superconductor Science and Technology）
  • Peak effect with tilted fields in melt-processed (Sm, Eu, Gd)Ba2Cu3O7-d superconductors（2004/02 Superconductor Science and Technology）
  • Effects of subgrains on critical current properties in melt-processed RE-Ba-Cu-O bulk superconductors（2004/02 Superconductor Science and Technology）
  • Pinning centers in NEG-123 active liquid oxygen temperature (90.2K)（2004/02 Superconductor Science and Technology）
  • High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk（2004/02 Superconductor Science and Technology）
  • Joining of different Y-Ba-Cu-O blocks（2004/01 Physica C）
  • Air Processing of ternary (Sm, Eu, Gd)Ba2Cu3O7-d superconductors with enhanced peak effects（2004/01 Physica C）
  • Influence of the Gd2BaCuO5 fine particles on thermoelectric power of melt-textured (Nd-Sm-Gd)Ba2Cu3O7-d（2004/01 Physica C）
  • Mechanical properties and field trapping ability of biulk superconductors with resin impregnation（2004/01 Superconductor Science and Technology）
  • Pinning properties in melt-processed YbBa2Cu3O7-δ with finely dispersed Yb2BaCuO5 inclusions.（2002/04 Physica C）
  • Microstructures and superconducting properties of single domain (Sm0.5, Eu0.5)Ba2Cu3O7-δ superconductors fabricated in air（2002/04 Physica C）
  • Strong pinning in ternary (Nd-Sm-Gd)Ba2Cu3Oy superconductors（2002/04 Appl. Phys. Lett.）
  • Superconducting joint of Y-Ba-Cu-O superconductors using Er-Ba-Cu-O solder（2002/04 Physica C）
  • Nanoparticle structure of MgB2 with ultrathin TiB2 grain boundaries（2002/04 Appl. Phys. Lett.）
  • Anisotropic superconducting properties of MgB2 single crystals probed by in-plane electrical transport measurements（2002/04 Phys. Rev. B）
  • Strong pinning in ternary (Nd-Sm-Gd) Ba2Cu3Oy superconductors（2002/02 Applied Physics Letters）
  • Optimization of matrix chemical ratio for high flux pinning ternary (Nd-Eu-Gd)Ba2Cu3Oy（2001/11 Applied Physics Letters）
  • Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ　(R=Nd and Yb) bulk superconducting at high temperature.（2001/08 Physical Review Bcondensed matter and materials physics）
  • Growth of single-domain (Sm0.5Eu0.5)Ba2Cu3O7-δ with high Tc and Jc by employing a thermal gradient.（2001/04 Applied Physics Letters）
  • Microstructure of (Nd, Eu, Gd)-123 matris with (Nd, Eu, Gd)-211 inclusions（2001/04 J. Mater. Res.）
  • Growth of single-domain (Sm0.5 Eu0.5)Ba2Cu3O7δ with high Tc and Jc bya employing a thermal gradient（2001/04 Appl. Phys. Lett.）
  • Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed R Ba2Cu3O7-δ (R=Nd and Yb)bulk superconductors at high（2001/04 Phys. Rev. B）
  • Numerical simulation of trapped magnetic field for bulk superconductor（2001/04 Physica C）
  • Bitter pattern study on flux distribution in the BSCCO (2212)（2001/04 Physica C）
  • Structure and formation mechanism of subgrains in large single-grain RE-Ba-Cu-O (RE=Y, Sm, Nd)bulk superconductors（2001/04 Physica C）
  • A comparative study of enhanced flux pining among melt-processed SmBa2Cu3O7-δ, (Sm0.5 Eu0.5)Ba2Cu3O7-δ, EuBa2Cu3O7-δ superconductors（2001/04 Physica C）
  • Effect of CeO2 addition on microstructure and magnetic properties in (Nd, Eu, Gd)-Ba-Cu-O（2001/04 Physica C）
  • Influence of point defects on the vortex state of disordered superconductors（2001/04 Phys. Rev. B）
  • E-J characteristics of NdBa2Cu3O7-δ bulk superconductor determined with ac susceptibility（2001/04 Physica C）
  • Force measurements for levitated bulk superconductors（2001/04 Physica C）
  • Resin-impregnated bulk YBCO current leads for Maglev（2001/04 Physica C）
  • Effect of resign impregnation on trapped field and levitation force of large-gain bulk Y-Ba-Cu-O superconductors（2001/04 Physica C）
  • The fabrication of SmBa2Cu3Oy bulk superconductor using (Nd, Sm)422 in air（2001/04 Physica C）
  • Relationship between undercooling and growth rate of Nd123/Ag in air（2001/04 Physica C）
  • Magnetic behavior of BSCCO and R 123 in the vortex liquid state（2001/04 Physica C）
  • Structure of subgrains in large single-grain RE-Ba-Cu-O (RE=Y, Sm, Nd)bulk superconductors（2001/04 J. Cryst. Growth）
  • Improved superconducting properties due to Ag2Q addition in NEG-123.（2001/04 Physica C）
  • E-J characteristics of NdBa2Cu3O7-δ bulk superconductor determined with ac susceptibility（2001/04 Physica C）
  • Force measurements for levitated bulk superconductors（2001/04 Phsica C）
  • Resin-impregnated bulk YBCO current leads for Maglev（2001/04 Physica C）
  • Effect of resin impregnation on trapped filed and levitation force of large-grain bulk Y-Ba-Cu-O superconductors（2001/04 Physica C）
  • The fabrication of SmBa2Cu3Oy bulk superconductor using (Nd, Sm)422 in air（2001/04 Physica C）
  • Relationship between undercooling and growth rate of Nd123/Ag in air（2001/04 Physica C）
  • Effect of CeO2 addition on microstructure and magnetic properties in (Nd, Eu, Gd)-Ba-Cu-O（2001/04 Physica C）
  • Improved superconducting properties due to Ag2O addition in NEG-123（2001/04 Physica C）
  • Single-domain NEG bulk superconductors for high magnetic field applications（2001/04 Physica C）
  • AC susceptibility of high-Tc superconductor REBa2Cu3Oy（2001/04 Physica C）
  • Switching reaction of Nb3Sn persistent current switch with a high current capacity（2001/04 Physica C）
  • Stability of the mechanical properties of bulk RE-Ba-Cu-O with resin impregnation（2001/04 Physica C）
  • Modification of flux pinning properties of RE-Ba-Cu-O superconductor by fast-neutron and heavy-ion irradiation（2001/04 Supercond. Sci. Tech.）
  • Improvement in Field Trapping Capability of (Nd, Eu, Gd)Ba2Cu3Oy with Ag2O Addition（2001/04 J. Appl. Phys.）
  • Optimization of matrix chemical ratio for high flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy（2001/04 Appl. Phys. Lett.）
  • Microstructure and flux pinning in oxygen-controlled melt-growth processed (Nd0.33 Eu0.33 Gd0.33)Ba2Cu3Oy（2001/04 Physica C）
  • Influence of combined Pt and CeO2 additions on microstructure and magnetic properties in (Nd, Eu, Gd)-Ba-Cu-O（2001/04 Supercond. Sci. Tech.）
  • Improvement of critical current density in MgB2 superconductors by Zr doping at ambient pressure（2001/04 Appl. Phys. Lett.）
  • Measurements of trapped-flux density for bulk high-temperature superconductors（2001/04 Physica C）
  • Structure of subgrain in large single-grain RE-Ba-Cu-O (RE=Y,Sm,Nd) bulk superconductors（2001/01 Journal of crystal growth）
  • Effect of matrix composition on the flux pinning in a (Nd,Eu,Gd)Ba2Cu3Oy superconductor（2000/12 Physical Review Bcondensed matter and materials physics）
  • Flux pinning by Nd4Ba2Cu2O10 inclusions in NdBa2Cu3O7-δ　superconductor: A combined effect of point, interface, and Δκ pinning at elevated temperature.（2000/07 Physical Review B condensed matter and materials physics）
  • Mechanical properties of Sm-Ba-Cu-O/Ag bulk superconductors（2000/04 Supercond. Sci. Tech.）
  • Mechanical properties of bulk superconductors（2000/04 Supercond. Sci. Tech.）
  • Performance of Sm-Ba-Cu-O bulk superconductors for a magnetic bearing（2000/04 Supercond. Sci. Tech.）
  • Superconducting properties of large grain (Sm, Gd)-Ba-Cu-O blocks（2000/04 Supercond. Sci. Tech.）
  • Ac Susceptibility in (Nd, Eu, Gd)-Ba-Cu-O superconductors（2000/04 Supercond. Sci. Tech.）
  • Subgrain structures in melt-processed REBa2Cu3Oy(RE=Y, Sm)bulk superconductors（2000/04 Supercond. Sci. Tech.）
  • Phase relations in the Nd-Ba-Cu-O system in reduced oxygen atmospheres（2000/04 Supercond. Sci. Tech.）
  • Superconducting properties of Gd123 superconductor fabricated in air（2000/04 Supercond. Sci. Tech.）
  • Flux motion in bulk YBCO induced by pulsed magnetic fields（2000/04 Supercond. Sci. Tech.）
  • Bitter pattern study of flux distributions in melt-processed YBCO（2000/04 Supercond. Sci. Tech.）
  • Ac susceptibility measurements for Nd-Ba-Cu-O superconductor（2000/04 Supercond. Sci. Tech.）
  • Confirmation of Ba-rich Nd1+xBa2-xCu3O7-δsolid solutions（2000/04 Supercond. Sci. Tech.）
  • Improvement of the mechanical properties of bulk superconductors with resin（2000/04 Supercond. Sci. Tech.）
  • Melt processing of binary (Nd, Eu)-Ba-Cu-O superconductors（2000/04 Supercond. Sci. Tech.）
  • Flux pinning by Nd4Ba2Cu2O10 inclusions in NdBa2Cu3O7-δ superconductors: A combined effect of point, interface, and Δ κ pinning at elevated temperatures（2000/04 Phys. Rev. B）
  • Scanning tunneling microscope studies on the atomic structures in NdBa2Cu3O7-δ single crystals（2000/04 Physica C）
  • Magneto-optic and magnetic properties of (Nd0.33 Eu0.33 Sm0.33)1-xYxBa2Cu3Oy superconductors（2000/04 Physica C）
  • Direct measurements of mechanical properties for large-grain bulk superconductors（2000/04 Physica C）
  • Superconducting transitions of YBa2Cu3OX superconductors in high fields（2000/04 Supercond. Sci. Tech.）
  • Measurements of trapped-flux density for bulk high-temperature superconductors（2000/04 Physica C）
  • Force measurements for levitated bulk superconductors（2000/04 Supercond. Sci. Tech.）
  • Jc-B properties of large RE-Ba-Cu-O disks（2000/04 Supercond. Sci. Tech.）
  • Effect of matrix composition on the flux pinning in a (Nd, Eu, Gd)Ba2Cu3Oy superconductor（2000/04 Phys. Rev. B）
  • Effect of Eu2BaCuO5 addition on the matrix composition and flux pinning in (Nd0.33 Eu0.33 Gd0.33) Ba2Cu3Oy（2000/04 Supercond. Sci. Tech.）
  • SUPERCONDUCTING PROPERTIES OF (Nd, Eu, Gd)-123（2000/04 Physica C）
  • Effect of Eu/Gd ratio on flux pinning in (Nd, Eu, Gd)-Ba-Cu-O（2000/04 Supercond. Sci. Tech.）
  • Field dependence of trapped fileds in (Nd, Eu, Gd)-Ba-Cu-O（2000/04 Supercond. Sci. Tech.）
  • (Nd, Eu, Gd)-Ba-Cu-O superconductors with combined addition of CeO2 and Pt（2000/04 Supercond. Sci. Tech.）
  • Pseudo-binary phase diagram along NdBa2Cu3Oy-Ba3Cu5Oz under pO2 of 0.01 atm（2000/04 Supercond. Sci. Tech.）
  • Effect of KCIO3 addition on the physical properties of YBCO HTSC（2000/04 Physica B）
  • Comparative study of the magnetization behavior of the heavy-ion irradiated and the neutron-irradiated RE123（2000/04 Physica B）
  • Peak effect and Bose-glass transition of the heavy-ion irradiated Gi2212: Effect of the defect configuration（2000/04 Physica B）
  • Effect of KCIO3 addition on the physical properties of YBCO HTSC（2000/04 Physica B）
  • Progress in applications of bulk high temperature superconductors（2000/04 Supercond. Sci. Tech.）
  • Mechanical properties of RE-Ba-Cu-O bulk superconductors（2000/04 Physica C）
  • Enhancement of Jc by 211 particles in ternary (Nd0.33 Eu0.33 Gd0.33)Ba2Cu3Oy melt-processed superconductors（2000/04 Appl. Phys. Lett.）
  • What causes the steep increase of the critical current density below 20K in Bi-based superconductors?（2000/04 Applied Superconductivity）
  • Superconducting properties of Nd1+xBa2-xCu3Oy single crystals isothermally grown at various temperatures（2000/04 Supercond. Sci. Technol.）
  • Spatial variation in the magnetic properties of single crystal Nd123（2000/04 Supercond. Sci. Technol.）
  • Influence of the size of Gd211 starting powder of the critical current density of Gd-Ba-Cu-O bulk superconductor（2000/04 Supercond. Sci. Tech.）
  • Superconducting properties of (Gd, Nd)-Ba-Cu-O bulk superconductor fabricated by melt processing in air（2000/04 Supercond. Sci. Tech.）
  • Modification of flux pinning properties of RE-Ba-Cu-O superconductor by irradiation（2000/04 Supercond. Sci. Tech.）
  • Effects of Pt and CeO2 addition on the growth of Nd4Ba2Cu2O10 particles（2000/04 Supercond. Sci. Tech.）
  • Flux Motion in melt-processed YBCO in pulsed magnetic fields（2000/04 Physica C）
  • Structure and formation mechanism of subraising melt-processed REBa2Cu3Oy(RE=Y, Nd, Sm)bulk superconductors（2000/04 Physica C）
  • Fabrication of Large Melt-textured Gd-Ba-Cu-O Superconductor with Ag Addition（2000/04 Physica C）
  • Refinement of Nd4Ba2Cu2O10 particle in the superconducting matrix（2000/04 Physica C）
  • Switching Performance of Nb3Sn Persistent Current Switch（2000/04 Physica C）
  • Recent progress in the applications of bulk high temperature superconductors（2000/04 Physica C）
  • Processing of GdBa2Cu3O7-y bulk superconductor and its trapped magnetic（2000/04 Physica C）
  • Preparation and properties of OCMG-processed Gd-Ba-Cu-O bulk superconductors with very fine Gd211（2000/04 Physica C）
  • Enhancement of critical current density of Dy-Ba-Cu-O（2000/04 Physica C）
  • Effect of microstructure on the superconducting properties of Gd-Ba-Cu-O bulk fabricated in air（2000/04 Physica C）
  • Enhancement of Jc by 211 particles in ternary(Nd0.33Eu0.33)Ba2Cu3Oy melt-processed superconductors（2000/01 Applied Physics Letters）
  • Engineering of pinning sites in melt-processed (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy superconductors（1999/10 Materials science & engineering）
  • 超電導体の臨界電流とピニング現象（1999/06 日本AEM学会誌）
  • Electromaglev-Levitation Data for Single and Multiple Bulk YBCO Disks（1999/04 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY）
  • Effect of Ag Addition on the Mechanical Properties of Bulk Superconductors（1999/04 IEEE Transactions on Applied Superconductivity）
  • Bearing Relevant Aspects of high Performance Bulk Sm-Ba-Cu-O（1999/04 Appl. Superconductivity）
  • Improvement of the mechanical properties of bulk superconductors by impregnation of epoxy resins（1999/04 Appl. Superconductivity）
  • Progress in applications of bulk high temperature superconductors（1999/04 Appl. Superconductivity）
  • Pinning force diagram of the ternary superconductor (Nd, Eu, Gd)-123 with secondary phase additions（1999/04 Appl. Superconductivity）
  • Exploring the ternary superconductors of the type (Nd, Eu, Gd)-123（1999/04 Appl. Superconductivity）
  • Comparative study of pulsed field magnetization for Y-Ba-Cu-O and Sm-Ba-Cu-O（1999/04 Materials Science & Engineering B）
  • Enhancement of Jc by refinement of Nd4Ba2CuO10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and Ce02 addition（1999/04 MATERIALS SCIENCE & ENGINEERING）
  • Magnetic interaction between permanent magnets and bulk superconductors（1999/04 Physica C）
  • Improvement of Critical Current Densities in Bulk Superconductors of the 123-Type（1999/04 Phts. stat. sol）
  • Refinement of secondary phase particles for high critical current densities in (Nd, Eu, Gd)-Ba-Cu-O superconductors（1999/04 Physica C）
  • Effect of platinum addition on the microstructure and critical current density in (Nd, Ed, Gd)-Ba-Cu-O（1999/04 Supercond. Sci. Tech.）
  • Scaling of pinning forces in NdBa2Cu3O7-δ superconductors（1999/04 J. Appl. Phys.）
  • Correlation of magnetic and magneto-optical properties with microstructure analysis in melt-textured (Nd0.33 Sm0.33 Gd0.33)Ba2Cu3Oy（1999/04 Physica C）
  • Comparative study of critical current densities and flux pinning among a flux-grown NdBa2Cu3Oy single crystal, melt-textured Nd-Ba-Cu-O, and Y-Ba-Cu-O bulks（1999/04 Phys. Rev. B）
  • Study of superconducting properties of OCMG processed (Nd, Eu, Gd)-Ba-Cu-O with Pr doping（1999/04 Physica C）
  • PROCESSING OF LARGE GRAIN RE-Ba-Cu-O SUPERCONDUCTORS AND THEIR APPLICATIONS（1999/04 ADVANCES IN SCIENCE AND TECHNOLOGY）
  • MAGNETO-OPTICAL CHARACTERIZATION OF Nd0.33 Eu0.33 Gd0.33 Ba2Cu3O7 SUPERCONDUCTORS（1999/04 Applied Superconductivity）
  • Correlation of magnetic and magneto-optical properties with microstructure analysis in melt-textured (Nd0.33 Sm0.33 Gd0.33)Ba2Cu3Oy（1999/04 Physica C）
  • Submicron size Gd2BaCuO5 particles as source for large critical current densities in (Nd0.33 Eu0.33 Gd0.33)Ba2Cu3Oy（1999/04 Eur. Phys. J. AP）
  • Embedding of 211 particles in NEG-123 superconductors（1999/04 Supercond. Sci. Tech.）
  • Enhancement of critical current density in (Nd,Eu,Gd)-Ba-Cu-O superconductors（1999/04 MATERIALS SCIENCE & ENGINEERING）
  • Microstructural and elastic behavior of OCMG-processed NdBaCuO materials（1999/04 MATERIALS SCIENCE & ENGINEERING）
  • Engineering of pinning sites in melt-processe (Nd0.33 Eu0.33 Gd0.33)Ba2Cu3Oy（1999/04 MATERIALS SCIENCE & ENGINEERING）
  • Correlation of magnetic and magneto-optical properties with microstructure analysis in melt-textured (Nd0.33 Sm0.33 Gd0.33)Ba2Cu3Oy（1999/04 Physica C）
  • Comparative study of magnetic fields trapped in YBa2Cu3Oy and SmBa2Cu3Oy superconducting bulks（1998/04 MATERIALS SCIENCE & ENGINEERING B）
  • Fabrication of large single-domain Sm123 superconductors by OCMG method（1998/04 MATERIALS SCIENCE & ENGINEERING B）
  • Melt processing of La-Ba-Cu-O superconductors with high Tc（1998/04 MATERIALS SCIENCE & ENGINEERING）
  • Analysis of pinning in NdBa2Cu3O7-δ superconductors（1998/04 Phys. Rev. B）
  • RE-Ba-Cu-O for high functional superconducting permanent magnet（1998/04 MATERIALS SCIENCE & ENGINEERING）
  • Field-Cooled Flux Distribution as Tool to Analyze Pinning Properties（1998/04 Jpn. J. Appl. Phys.）
  • Magnetic and magneto-optic characterization of the termary compounds (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy, (Sm0.33Eu0.33Gd0.33)Ba2Cu3Oy and (Nd0.33Sm0.33Gd0.33)Ba2Cu3Oy（1998/04 Supercond. Sci. Tech.）
  • EFFECT OF Nd4Ba2Cu2O10 ADDITION ON THE PINNING PROPERTIES OF Nd-Ba-Cu-O CRYSTALS（1998/04 Applied Superconductivity）
  • MAGNETIC MEASUREMENTS IN NdBa2Cu3O7-δ SINGLE CRYSTALS: MAGNETIZATION, FLUX PINNING AND CREEP（1998/04 Applied Superconductivity）
  • KEY ISSUES FOR THE CHARACTERIZATION OF RE-Ba-Cu-O SYSTEMS (RE:Nd, Sm, Eu, Gd)（1998/04 Applied Superconductivity）
  • Effects of Gd2BaCuO5 addition on critical current characteristics in melt-processed (Nd, Eu, Gd)-Ba-Cu-O（1998/04 Physica C）
  • Improvement of the superconducting properties in (Nd, Sm, Eu)-Ba-CuO using melt-quenched precursors（1998/04 Physica C）
  • Microstructure and pinning in high-Tc and large-Jc (Nd, Eu, Gd)-123 superconductors prepared by OCMG process（1998/04 Supercond. Sci. Tech.）
  • Flux pinning in ternary (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy melt-processed superconductors（1998/04 Appl. Phys. Lett.）
  • Analysis of pinning in NdBa2Cu3O7-δ superconductors（1998/04 Phys. Rev. B）
  • Melt processing of La-Ba-Cu-O superconductors with high Tc（1998/04 Materials Science and Engineering）
  • EFFECT OF OXYGEN ON THE SUPER CONDUCTING PROPERTIES OF Nd16xBa2-xCu3O7-δ(0.1x10.4) SOLID SOLUTION（1998/04 Applied Superconductivity）
  • Melt processing of La-Ba-Cu-O superconductors with high Tc（1998/04 Materials Science and Engineering）
  • Effect of twin planes in the magnetization hysteresis loops of NdBa2Cu3O7 single crystals（1998/04 Phys. Rev. B）
  • Comparative study of magnetic properties between melt-textured and single crystalline Y-Ba-Cu-O（1998/04 Physica C）
  • Origin of subgrain formation in melt-grown Y-Ba-Cu-O bulks（1998/04 Physica C）
  • Anisotropic magnetization properties of an NdBa2Cu3O7-δ single crystal（1998/04 Supercond. Sci. Tech.）
  • A COMPARISON OF THE IRREVERSIBILITY LINE BETWEEN MELT-PROCESSED Nd-Ba-Cu-O AND Y-Ba-Cu-O SUPERCONDUCTORS（1998/04 Applied Superconductivity）
  • Trapped field of YBa2Cu3O7 QMG bulk magnets（1998/04 Materials Science & Engineering B）
  • Magneto optical observations of flux dynamics in Nd-Ba-Cu-O bulk superconductors（1998/04 Materials Science & Engineering B）
  • SUPERCONDUCTING PROPERTIES OF (Nd,Sm,Eu,Gd)-Ba-Cu-O（1998/04 Applied Superconductivity）
  • EFFECT OF Gd ADDITION ON THE SUPERCONDUCTING PROPER TIES OF (Nd-Sm-Eu) 23 SYSTEM（1997/04 Applied Superconductivity）
  • Electromagnetic Application of Melt-Processed YBCO（1997/04 Ceramics International）
  • Flux pinning properties of NdBa2Cu3O7-d single crystals flux-grown in low oxygen partial pressures（1997/04 Physica C）
  • Comparative Study of the Flux Pinning by Columnar Defects in High-Tc Superconductors（1997/04 Physical C）
  • Microstructures and superconducting properties of melt-processed (RE, RE') - Ba-Cu-O（1997/04 Physica C）
  • Melt processing of high-Tc Nd-Ba-Cu-O superconductors in air（1997/04 Physica C）
  • Numerical Evaluation of Magnetization Properties of a Bulk HTSC with a Hole（1997/04 IEEE Transactions on Magnetics）
  • Mutual conversion between ultrasonic and electromagnetic waves via compressional distortion of vortices in a c-axis aligned YBa2Cu3O7（1997/04 Physica C）
  • Microstructure of Nd-Ba-Cu-O superconductors prepared by the oxygen-controlled-melt-growth method（1997/04 Physica C）
  • Effects of oxygen content of the superconducting properties of melt-textured LRE123 superconductors（1997/04 Physica C）
  • Grain growth and superconducting properties of (Sm, Eu, Gd)-Ba-Cu-O（1997/04 Physica C）
  • Magneto optical characterizations of flux dynamics in Nd-Ba-Cu-O bulk superconductors（1997/04 Physica C）
  • Control of the Nd422 Second Phase for the Improvement of the Critical Current Density in Nd-Ba-Cu-O Superconductors（1997/04 Superlattices and Microstructures）
  • Vibration Control for a High-Tc Superconducting Non-Linear Levitation System（1997/04 Journal of Sound and Vibration）
  • Field induced flux pinning in Nd1+xBa2-xCu3O7-δsingle crystal（1997/04 Physica C）
  • Improved superconducting properties of melt-textured Nd123 by additional heat treatment（1997/04 Physica C）
  • Effect of high-temperature heat-treatment on the pinning properties of melt-textured Nd123（1997/04 Physica C）
  • Flux pinning in melt processed RE-Ba-Cu-O（1997/04 Physica C）
  • Application of Oxygen Controlled melt growth (OCMG) in Ternary RE123 Systems（1997/04 Physica C）
  • The trapped field of YBCO bulk superconducting magnets（1997/04 Cryogenics）
  • A.c. susceptibility measurements in the presence of d.c. magnetis fields for Nd-Ba-Cu-O superconductors（1997/04 Supercond. Sci. Tech.）
  • Effect of mixing three rare-earth elements on the superconducting properties of REBa2Cu3Oy（1997/04 Supercond. Sci. Tech.）
  • A.C. magnetization characteristics of Nd123 bulk superconductors（1997/04 Cryogenics）
  • Melt-processed LRE-Ba-Cu-O superconductors and prospects for their applications（1997/04 J. Alloys and compounds）
  • Refinement of Nd-422 phase trapped in a Nd1+δBa2-δCu3O7-y superconducting matrix（1997/04 J. Mater. Res.）
  • Improved superconducting properties of melt-textured Nd123 by additional heat treatment（1997/04 Physica C）
  • Melt-processed light rare earth element-Ba-Cu-O（1996/04 Supercond. Sci. Tech.）
  • Observation of multiple peaks in the magnetization curves of NdBa2cu3O7 single crystals（1996/04 Rhys. Rev. B）
  • Mutual conversion between electromagnetic and ultrasonic waves in high-Tc superconductors under magnetic field（1996/04 Phys. B）
  • Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method（1996/04 Physica C）
  • Critical currents of OCMG processed Nd123 crystals（1996/04 Physica C）
  • Experimental Evaluation of the Total Shielding Current in a Bulk High-Tc Superconductor（1996/04 IEEE Transactions on Applied Superconductivity）
  • Generation and detection of transverse ultrasonic waves via vortex tilting in superconductive YBa2Cu3O7（1996/04 Appl. Phys. Lett.）
  • Low magnetic relaxation in a single crystal and a melt processed NdBa2Cu3O7-δsample（1996/04 Supercond. Sci. Tech.）
  • Relaxation of persistent current and the energy barrier Ueff (J) close to Tc in a grainaligned YBa2Cu3O7-δ ring（1995/04 Phys. Rev. B）
  • Optimization of Y2BaCuO5 phase morphology for the growth of large bulk YBCO grains（1995/04 J. Mater. Res.）
  • Investigation of the processing conditions for the growth of large cross section meet-powder-meet-growth YBCO samples in a bidirectional temperature gradient（1995/04 J. Mater. Res.）
  • Comparative study of experimental techniques for irreversibility lines and critical current densities in high-temperature superconductors（1995/04 Supercond. Sci. Tech.）
  • Possibility of Tc and Jc enhancement in 10% BaSnO3-doped MPMG-Processed YBCO（1994/04 Supercond. Sci. Tech.）
  • Enhanced Tc and Strong Flux Pinning in Melt-Processed NdBa2Cu3Oy（1994/04 J. Appl. Phys.）
  • Flux Pinning in Melt-Grown NdBa2Cu3Oy and SmBa2Cu3Oy Superconductors（1994/04 J. Appl. Phys.）
  • Melt processing for obtaining NdBa2Cu3Oy superconductors with high Tc and large Jc（1994/04 J. Appl. Phys. Lett.）
  • Irreversibility line for a Pb-doped Hg-Ba-Ca-Cu-O superconductor（1994/04 J. Appl. Phys. Lett.）
  • A Comparison of Experimental Techniques to Determine Irreversibility Lines and Critical Current Densities in Melt-Processed YBACO（1994/04 Rhys. Rev. B）
  • Flux Creep of Melt Processed YBCO（1994/04 Mat. Res. Soc. Jpn.）
  • Flux Pinning and Applications of Melt Processed YBCO（1994/04 Mat. Res. Soc. Jpn.）
  • Melt-Processing of High Temperature Superconductors（1994/04 Progress in Materials Science）
  • A new type of pinning center in melt grown Nd123 and Sm123（1994/04 Physica C）
  • Flux Pinning Sites in Melt-Processed YBaCuO Superconductors（1993/04 Phase Transitions）
  • Microstructural characteristics of melt-powder-melt-grown YBa2Cu3O7-x crystal（1993/04 Cryogenics）
  • Magnetic Properties of High-Temperature Superconductors（1993/04 IEEE TRANSLATION JOURNAL ON MAGNETICS IN JAPAN）
  • Flux pinning by non-superconducting inclusions in melt-processed YBaCuo superconductors（1992/04 Cryogenics）
  • Effect of Y2BaCuO5 on fracture toughness of YBCO prepared by a MPMG process（1992/04 Physica C）
  • Melt Processing of Bulk YBaCuO Superconductors with High Jc（1992/04 Journal of Engineering Materials and Technology）
  • Magnetic properties of superconducting YBa2Cu3Ox permanent magnets prepared by the melt process（1992/04 J. Appl. Phys.）
  • Processing of bulk YBaCuO（1992/04 Supercond. Sci. Tech.）
  • Magnetic hysteresis and flux creep of melt-powder-melt growth YBa2Cu3O7 superconductors（1992/04 Phys. Rev. B）
  • Critical Currents and Irreversibility Lines of Melt Processed YBa2Cu3O7 Superconductors（1991/04 Physica C）
  • Flux pinning and critical currents in melt processed YBaCuO superconductors（1991/04 Supercond. Sci. Tech.）
  • Melt Processing of Bulk High Tc Superconductors and Their Application（1991/04 IEEE Transactions on Magnetics）
  • Detection of Oxygen Deficient Regions in YBa2Cu3Ox Superconductors by Polarized Optical Microscopy（1991/04 Jpn. J. Appl. Phys.）
  • Flux Pinning Due to Nonsuperconducting Particles in Melt Processed YBaCuO Superconductors（1991/04 Physica C）
  • Microstructures of the melt-powder-melt-growth processed YBaCuO（1991/04 J. Mater. Res.）
  • Restricted reversible region and strongly enhanced pinning in MPMG YBa2Cu3O7 with Y2 BaCuO5 inclusions（1991/04 Physica C）
  • Large Levitation Force due to Flux Pinning in YBaCuO Superconductors Fabricated by Melt-Powder-Melt-Growth Process（1990/04 Jpn. J. Appl. Phys.）
  • Direct Observation of Flux creep in melt processed high Tc oxide superconductors（1990/04 Cryogenics）
  • TEM Observation of Interfaces between Y2BaCuO5 Inclusions and the YBa2Cu3O7 Matrix in Melt-Powder-Melt-Growth Processed YBaCuO（1990/04 Jpn. J. Appl. Phys.）
  • Critical currents and flux creep in melt processed high Tc oxide superconductors（1990/04 Jpn. Appl. Phys.）
  • Melt Processing of YBaCuO Superconductors and Critical Currents（1990/04 Modern Physics Letters B）
  • Fracture Toughness of YBaCuO Prepared by MPMG Process（1990/04 ）
  • Flux Ceep in High Jc YBa2Cu307 Crystals（1989/04 Jpn. Appl. Phys.）
  • A New Process with the Promise of High Jc in Oxide Superconductors（1989/04 Jpn. Appl. Phys.）
  • Microstructural Study on the Y-Ba-Cu-O System at High Temperatures（1989/04 Jpn. J. Appl. Phys.）