FUJII Hiroki 藤井宏樹

Researcher Number	80354306
Affiliation (Current)	2025: 国立研究開発法人物質・材料研究機構, エネルギー・環境材料研究センター, 主席研究員
Affiliation (based on the past Project Information) *help	2016: 国立研究開発法人物質・材料研究機構, 高温超伝導線材グループ, 主席研究員 2015: 国立研究開発法人物質・材料研究機構, 超伝導線材ユニット, 主席研究員 2012 – 2014: 独立行政法人物質・材料研究機構, その他部局等, その他 2013: 物質・材料研究機構, 超伝導線材ユニット, 主幹研究員 2011: 独立行政法人物質・材料研究機構, その他部局等, 研究員 2006 – 2010: 独立行政法人物質・材料研究機構, 超伝導材料センター, 主幹研究員 2006: 独立行政法人物質・材料研究機構, 光触媒材料センター, 主幹研究員
Review Section/Research Field	Principal Investigator Electronic materials/Electric materials / Physical properties of metals/Metal-base materials Except Principal Investigator Functional materials/Devices / Structural/Functional materials
Keywords	Principal Investigator 二硼化マグネシウム / 炭素置換 / 溶液処理 / 結晶粒間結合 / 超伝導線材 / carbon substitution / critical current density / grain pulverization / chemical solution process / magnesium diboride … More / 炭疽置換 / 微結晶 / 臨界電流密度 / 微結晶化 / 化学溶液処理 / 酸化マグネシウム除去 / 充填粉精製 / 不活性ガス雰囲気 / 強結合 / ex situ法 / 二硼化マグネシウム線材 / 結晶子サイズ / 高活性粉末 / 上部臨界磁界 / ピン留め点 / 高エネルギー粉砕処理 / MgO層除去 / 臨界電流密度特性 / ex situ法線材 / パウダー・イン・チューブ法 / 電気材料工学 / 電子 … More Except Principal Investigator 固溶体化合物 / コンポジット正極材 / リチウムイオン電池 / 充填率 / 臨界電流密度 / 超伝導線材 / 二硼化マグネシウム / 線材 / 臨界電流 / 拡散反応 / 材料・加工処理 / 超伝導材料・素子 / リチウムニ次電池 / 化学溶液法 / リチウム二次電池 / 正極材 / 微細構造制御 Less

Development of ex situ processed MgB2 condoctors with strong grain connectivityPrincipal Investigator
- Principal Investigator
  
  FUJII Hiroki
- Project Period (FY)
  2013 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Physical properties of metals/Metal-base materials
- Research Institution
  National Institute for Materials Science
Preparation and Battery Properties of Composite Cathode Materials for Lithium-Ion Batteries
- Principal Investigator
  
  OZAWA Kiyoshi
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Functional materials/Devices
- Research Institution
  National Institute for Materials Science
Enhancement of performance in PIT-processed MgB_2 superconducting tapes by chemical solution processPrincipal Investigator
- Principal Investigator
  
  FUJII Hiroki
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  National Institute for Materials Science
Fabrication of magnesium di-boride superconductor applying a interface diffusion of composite material
- Principal Investigator
  
  KUMAKURA Hiroaki
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Structural/Functional materials
- Research Institution
  National Institute for Materials Science
The study of cathode materials with a highly controlled microstructure for secondary lithium-battery systems
- Principal Investigator
  
  OZAWA Kiyoshi
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Functional materials/Devices
- Research Institution
  National Institute for Materials Science
Development of advanced MgB_2 superconducting tapes by controlling microstructurePrincipal Investigator
- Principal Investigator
  
  HIROKI Fujii
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  National Institute for Materials Science

All 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 Other

All Journal Article Presentation Patent

[Journal Article] Improved critical current density in ex situ processed MgB2 tapes by the size reduction of grains and crystallites by high-energy ball milling2017
- Author(s)
  H. Fujii, A. Ishitoya, S. Itoh, K. Ozawa, H. Kitaguchi
- Journal Title
  
  Cryogenics
  
  Volume: 82 Pages: 15-24
- DOI
  10.1016/j.cryogenics.2017.01.002
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25420696
[Journal Article] Effect of additions of Ca compounds to the filling powder on the reduction of MgO and the critical current density properties of ex situ processed MgB2 tapes2016
- Author(s)
  H. Fujii, A. Ishitoya, S. Itoh, K. Ozawa and H. Kitaguchi
- Journal Title
  
  Journal　of Alloys and Compounds
  
  Volume: 664 Pages: 650-656
- DOI
  10.1016/j.jallcom.2016.01.027
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25420696
[Journal Article] Interface Strain-Induced Multiferroicity of a SmFeO_3 Film2014
- Author(s)
  Zhenxiang, Cheng, Fang Hong, Yuanxu Wang, Kiyoshi Ozawa, Hiroki Fujii, Hideo Kimura, Yi Du, Xiaolin Wang, and Shixue Dou
- Journal Title
  
  ACS Appl. Mater. Interfaces
  
  Volume: 6 Issue: 10 Pages: 7356-7362
- DOI
  10.1021/am500762c
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22550169, KAKENHI-PROJECT-25410256
[Journal Article] The effect of refinement of carbon-substituted MgB2 filling powder using various starting powders on the microstructure and critical current density of ex situ processed superconducting tapes2014
- Author(s)
  H. Fujii, K. Ozawa, and H. Kitaguchi
- Journal Title
  
  Superconducting Science and Technology
  
  Volume: 27 Issue: 3 Pages: 035002-035002
- DOI
  10.1088/0953-2048/27/3/035002
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-25410256, KAKENHI-PROJECT-25420696
[Journal Article] Electron diffraction and high-resolution electron microscopy studies on layered Li_<2-δ>(Mn_<1->xCo_x)_<1+δ>O_32013
- Author(s)
  Hiroki Fujii, Kiyoshi Ozawa, and Takashi Mochiku
- Journal Title
  
  J. Solid State Chem.
  
  Volume: 203 Pages: 345-352
- DOI
  10.1016/j.jssc.2013.04.043
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Electrode Properties of Li2MnO3 (C2/m) for a Lithium-Battery Cathode in Several Charge-Discharge Potential Ranges2013
- Author(s)
  Yasuhiro Nakao, Kiyoshi Ozawa, Hiroki Fujii, Takashi Mochiku, Hideo Iwai, Yoshinori Tsuchiya, and Naoki Igawa
- Journal Title
  
  Trans. Mat. Res. Soc. Japan
  
  Volume: 38 Pages: 229-233
- NAID
  130005004220
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Electron diffraction and high-resolution electron microscopy studies on layered Li2-d(Mn1-xCox)1+dO32013
- Author(s)
  Hiroki Fujii, Kiyoshi Ozawa, and Takashi Mochiku
- Journal Title
  
  Journal of Solid State Chemistry
  
  Volume: 203 Pages: 345-352
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Electrochemical Characteristics of Layered Li_<1.95> Mn_<0.9> Co_<0.15> O_3(C2/m) as a Lithium-Battery Cathode2012
- Author(s)
  K. Ozawa, Y. Nakao. T. Mochiku, Z. Cheng, L. Wang, H. Iwai, Y. Tsuchiya, H. Fujii, N. Igawa
- Journal Title
  
  Journal of the Electrochemimcal Society
  
  Volume: 159 Issue: 3 Pages: A300-A304
- DOI
  10.1149/2.079203jes
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20612015, KAKENHI-PROJECT-22550169, KAKENHI-PROJECT-24560866
[Journal Article] Detrimental Effects Depending on the Sheath Materials in Ex Situ Processed Heat Treated MgB_2 Wires and Tapes2011
- Author(s)
  H.Fujii, K.Togano, K.Ozawa, H.Kumakura
- Journal Title
  
  IEEE Transactions on Applied Superconductivity (ASC'10)
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] 有機酸溶液処理を施したMgB_2粉を用いて作製したex situ法線材における炭素置換と超伝導特性2011
- Author(s)
  藤井宏樹
- Journal Title
  
  低温工学 46
  
  Pages: 2-9
- NAID
  10027410276
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] 有機酸溶液処理を施したMgB_2粉を用いて作製したex situ法線材における炭素置換と超伝導特性2011
- Author(s)
  藤井宏樹
- Journal Title
  
  低温工学
  
  Volume: 46 Pages: 2-9
- NAID
  10027410276
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Critical temperature and carbon substitution in MgB_2 prepared through the decomposition of Mg(BH4)_22010
- Author(s)
  H.Fujii, K.Ozawa
- Journal Title
  
  Supercond.Sci.Technol. 23
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Effect of the treatment temperature and solution concentration in the solution process for MgB_2 powder on the J_c-B property of ex-situ processed MgB_2 superconducting tapes.2010
- Author(s)
  H.Fujii, K.Ozawa
- Journal Title
  
  Physica C 470
  
  Pages: 326-330
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Critical temperature and carbon substitution in MgB_2 prepared through the decomposition of Mg(BH_4)_22010
- Author(s)
  H.Fujii, K.Ozawa
- Journal Title
  
  Supercond.Sci.Technol.
  
  Volume: 23
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Effect of temperature and concentration of solution in chemical treatment for MgB_2 powder on the J_c-B property of ex situ processed MgB_2 superconducting tapes2010
- Author(s)
  H. Fujii and K. Ozawa
- Journal Title
  
  Physica C
  
  Volume: 470 Issue: 5-6 Pages: 326-330
- DOI
  10.1016/j.physc.2010.01.065
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Critical temperature and carbon substitution in MgB_2 prepared through the decomposition of Mg(BH_4)_22010
- Author(s)
  Hiroki Fujii
- Journal Title
  
  Superconductor Science & Technology
  
  Volume: 23
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Improved critical current densities in ex-situ processed MgB_<2-χ>C_χ tapes using powders treated in chemical solutions2010
- Author(s)
  H.Fujii, K.Togano, H.Kumakura, K.Ozawa
- Journal Title
  
  IEEE Transactions on Applied Superconductivity 19
  
  Pages: 2698-2701
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Effect of temperature and concentration of solution in chemical treatment for MgB_2 powder on the J_c-B property of ex situ processed MgB_2 superconducting tapes2010
- Author(s)
  H.Fujii, K.Ozawa
- Journal Title
  
  Physica C 470
  
  Pages: 326-330
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Critical temperature and carbon substitution in MgB_2 prepared through the decomposition of Mg(BH)_22010
- Author(s)
  H. Fujii and K. Ozawa
- Journal Title
  
  Supercond. Sci. Technol.
  
  Volume: 23
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22550169
[Journal Article] Improved critical current densities in ex-situ processed MgB_<2-x>C_x tapes using powders treated in chemical solutions2009
- Author(s)
  H.Fujii, K.Togano, H.Kumakura, K.Ozawa
- Journal Title
  
  IEEE Transactions on Applied Superconductivity (ASC'08) vol.19, No.3
  
  Pages: 2698-2701
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] "lmproved critical current densities in MgB_2 tapes fabricated through an ex-situ process using powders treated in variolls chemical solutions"2008
- Author(s)
  H. Fujii
- Journal Title
  
  Journal of Materials Research 23
  
  Pages: 507-514
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Grain coupling and critical current density in Fe-sheathed carbon-substituted MgB_2 tapes fabricated through an ex situ process using chemically treated powder2008
- Author(s)
  H. Fujii
- Journal Title
  
  Superconductor Science and Technology 21
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] Improved critical current densities in MgB2 tapes fabricated through an ex-situ process using powders treated in various chemical soutions2008
- Author(s)
  H. Fujii, K. Togano, K. Ozawa
- Journal Title
  
  J. Mater. Res 23
  
  Pages: 507-514
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Effects of both addition and chemical treatment of SiC nanoparticles on the grain coupling and the critical current density in ex-situ processed MgB2 tapes2008
- Author(s)
  H. Fujii, K. Togano, K. Ozawa
- Journal Title
  
  Supercond. Sci. Technol 21
  
  Pages: 15002-15002
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Grain coupling and critical current density in Fe-sheathed carbon-substituted MgB_2 tapes fabricated through an ex situ process using chemically treated powder2008
- Author(s)
  H.Fujii, K.Togano, K.Ozawa
- Journal Title
  
  Supercond.Sci.Technol. 21
  
  Pages: 95018-95018
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560312
[Journal Article] "Effects of both addition and chemical treatment of SiC nanoparticles on the grain coupling and the critical current current density in ex-situ processed MgB_2 tapes"2008
- Author(s)
  H. Fujii
- Journal Title
  
  Superconductor Science and Technology 21
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] "Effects of both addition and chemical treatment of SiC nanoparticles on the grain coupling and the critical current density in ex-situ processed MgB_2 tapes"2008
- Author(s)
  H.Fujii,K.Togano and K.Ozawa
- Journal Title
  
  Supercond.Sci.Technol. 21
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] "Improved critical current densities in MgB_2 tapes fabricated through an ex-situ process using powders treated in various chemical solutions"2008
- Author(s)
  H.Fujii,K.Togano and K.Ozawa
- Journal Title
  
  J.Mater.Res. 23
  
  Pages: 507-514
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Structural modifications caused by electrochemical lithium extraction for two types of layered LiVO2 (R3m)2007
- Author(s)
  K. Ozawa, Y. Nakao, L. Wang, Z. X. Cheng, H. Fujii, M. Hase, and M. Eguchi
- Journal Title
  
  J. Power Sources 174
  
  Pages: 469-472
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18550171
[Journal Article] Effect of SiC addition on the superconductiong properties of MgB2 tapes fabricated through an ex-situ process using chemically treated powder2007
- Author(s)
  H. Fujii, K. Togano, H. Kumakura, K. Ozawa
- Journal Title
  
  Supercond. Sci. Technol 20
  
  Pages: 579-583
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Preparation and characterization of Ag-magadiite nanocomposites2007
- Author(s)
  K. Ozawa, F. Iso, Y. Nakao, Z. X. Cheng, H. Fujii, M. Hase, and H. Yamaguchi
- Journal Title
  
  J. Eur. Ceram. Soc. 27
  
  Pages: 2665-2669
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18550171
[Journal Article] "Effect of SiC addition on the superconducting properties of MgB_2 tapes fabricated through an ex-situ process using chemically treated powder"2007
- Author(s)
  H. Fujii
- Journal Title
  
  Superconductor Science and Technology 20
  
  Pages: 579-583
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] "Improved critical current densities in ex-situ processed MgB_2 tapes fabricated with chemically treated powder"2007
- Author(s)
  H.Fujii,K.Togano and K.Ozawa
- Journal Title
  
  J.Mater.Res. 22
  
  Pages: 1281-1285
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] "Effect of SiC addition on the superconducting properties of MgB_2 tapes fabricated through an ex-situ process using chemically treated powder"2007
- Author(s)
  H.Fujii,K.Togano,H.Kumakura and K.Ozawa
- Journal Title
  
  Supercond.Sci.Technol. 20
  
  Pages: 579-583
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] "lmproved critical current densities in ex-situ processed MgB_2 tapes fabricatedwitll chemically treated powder"2007
- Author(s)
  H. Fujii
- Journal Title
  
  Journal of Materials Research 22
  
  Pages: 1281-1285
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] The effect of Sic addition on the superconducting properties of MgB2 tapes fabricated through an ex situ process using chemically treated powder2007
- Author(s)
  H. Fujii, K. Togano, H. Kumakura, and K. Ozawa
- Journal Title
  
  Supercond. Sci. Technol. 20
  
  Pages: 579-583
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18550171
[Journal Article] Improved critical current densities in ex-situ processed MgB2 tapes fabricated with chemically treated powder2007
- Author(s)
  H. Fujii, K. Togano, K. Ozawa
- Journal Title
  
  J. Mater. Res 22
  
  Pages: 1281-1285
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Journal Article] Detrimental Effects Depending on the Sheath Materials in Ex Situ Processed Heat Treated MgB_2 Wires and Tapes
- Author(s)
  H.Fujii, K.Togano, K.Ozawa, H.Kumakura
- Journal Title
  
  IEEE Transactions on Applied Superconductivity(ASC'10) (in press)
- Data Source
  KAKENHI-PROJECT-20560312
[Patent] リチウム二次電池正極材化合物、その製造方法及び充放電プロセス2011
- Inventor(s)
  小澤清, 茂筑高士, 藤井宏樹
- Industrial Property Rights Holder
  物質・材料研究機構
- Industrial Property Number
  2011-038420
- Filing Date
  2011-02-24
- Data Source
  KAKENHI-PROJECT-22550169
[Patent] リチウム二次電池正極材化合物、その製造方法及び充放電プロセス2011
- Inventor(s)
  小澤清、茂筑高士、藤井宏樹
- Industrial Property Rights Holder
  独立行政法人物質・材料研究機構
- Industrial Property Rights Type
  特許
- Filing Date
  2011-02-24
- Overseas
- Data Source
  KAKENHI-PROJECT-22550169
[Presentation] 活性粉末を使用したex situ法MgB2線材の最適加熱処理温度2017
- Author(s)
  藤井宏樹、石戸谷章、伊藤真二、北口仁
- Organizer
  2017年春季低温工学・超電導学会
- Place of Presentation
  タワーホール船堀
- Year and Date
  2017-05-22
- Data Source
  KAKENHI-PROJECT-25420696
[Presentation] 活性粉末を使用したex situ法MgB2線材の作製と臨界電流密度特性2016
- Author(s)
  藤井宏樹、石戸谷章、伊藤真二、小澤清、北口仁
- Organizer
  2016年春季低温工学・超電導学会
- Place of Presentation
  タワーホール船堀
- Year and Date
  2016-05-30
- Data Source
  KAKENHI-PROJECT-25420696
[Presentation] 還元剤添加によるex situ法MgB2線材の臨界電流密度特性の改善2015
- Author(s)
  藤井宏樹、石戸谷章、伊藤真二、小澤清、北口仁
- Organizer
  2015年秋季低温工学・超電導学会
- Place of Presentation
  姫路商工会議所(兵庫県姫路市)
- Year and Date
  2015-12-02
- Data Source
  KAKENHI-PROJECT-25420696
[Presentation] ex situ法MgB2線材の臨界電流密度特性に及ぼす充填粉への還元剤添加効果2015
- Author(s)
  藤井宏樹、小澤清、北口仁
- Organizer
  2015年春季低温工学・超電導学会
- Place of Presentation
  産業技術総合研究所つくばセンター共用講堂(茨城県つくば市)
- Year and Date
  2015-05-27
- Data Source
  KAKENHI-PROJECT-25420696
[Presentation] Structural Variation of Li_2MnO_3 (C2/m) in Several Charge-Discharge Potential Ranges2014
- Author(s)
  K. Ozawa, Y. Nakao, Y. Nemoto, H. Fujii, T. Mochiku, Y. Tsuchiya, and N. Igawa
- Organizer
  Asia-Pacific Conference on Electrochemical Energy Storage
- Place of Presentation
  Brisbane Convention Centre,オーストラリア
- Data Source
  KAKENHI-PROJECT-22550169
[Presentation] Structural Variation of Li2MnO3 (C2/m) in Several Charge-Discharge Potential Ranges2014
- Author(s)
  Kiyoshi Ozawa, Yasuhiro Nakao, Yoshihiro Nemoto, Hiroki Fijii, Takashi Mochiku, Yoshinori Tsuchiya, and Naoki Igawa
- Organizer
  APEnergy 2014
- Place of Presentation
  Brisbane Convention Centre (Brisbane, Australia)
- Data Source
  KAKENHI-PROJECT-22550169
[Presentation] ex situ法炭素置換MgB2線材の作製と超伝導特性2013
- Author(s)
  藤井宏樹、小澤清、北口仁
- Organizer
  低温工学・超電導学会
- Place of Presentation
  タウンホール船堀
- Data Source
  KAKENHI-PROJECT-25420696
[Presentation] Synthesis and Electrochemical Properties of New Types of Manganese-Based Layered Materials as a Lithium-Battery Cathode2012
- Author(s)
  K. Ozawa, Y. Nakao, T. Mochiku, Z. X. Cheng, L. Z. Wang, H. Iwai, and H. Fujii
- Organizer
  ACMM22/APMC10/ICONN2012
- Place of Presentation
  Perth Convention Centre,オーストラリア
- Data Source
  KAKENHI-PROJECT-22550169
[Presentation] Electrode Properties of Layered Li_<(2->x/2)Mn_<(1->x)Co_3x/2O_3 (x = 0–0.9)2012
- Author(s)
  K. Ozawa, Y. Nakao, T. Mochiku, Y. Tsuchiya, H. Iwai, and H. Fujii
- Organizer
  IUMRS-ICEM2012
- Place of Presentation
  パシフィコ横浜、横浜
- Data Source
  KAKENHI-PROJECT-22550169
[Presentation] Mg(BH_4)_2粉末を用いて作製したPIT法MgB_2線材の超伝導特性2011
- Author(s)
  藤井宏樹, ら
- Organizer
  2010年春季低温工学・超伝導学会
- Place of Presentation
  物質・材料研究機構ならびに研究交流センター
- Year and Date
  2011-05-19
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Mg(BH_4)_2の熱分解によるMgB_2の作製2010
- Author(s)
  藤井宏樹, ら
- Organizer
  2010年秋季低温工学・超伝導学会
- Place of Presentation
  かごしま県民交流センター
- Year and Date
  2010-12-02
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Mg(BH_4)_2の熱分解によるMgB_2の作製2010
- Author(s)
  藤井宏樹、小澤清、熊倉浩明
- Organizer
  2010年秋季低温工学・超伝導学会
- Place of Presentation
  かごしま県民交流センター(鹿児島県)
- Year and Date
  2010-12-02
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Improved critical current densities in ex-situ processed MgB_2 tapes sheathed with various metals using powders treated in organic acid solutions2010
- Author(s)
  藤井宏樹, et al
- Organizer
  2010 Applied Superconductivity Conference
- Place of Presentation
  The Omni Shoreham Hotel, Washington, D.C.
- Year and Date
  2010-08-04
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Improved critical current densities in ex-situ processed MgB_2 tapes sheathed with various metals using powders treated in organic acid solutions2010
- Author(s)
  H.Fujii, K.Ozawa, H.Kumakura
- Organizer
  2010 Applied Superconductivity Conference
- Place of Presentation
  The Omni Shoreham Hotel(米国)
- Year and Date
  2010-08-04
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 溶液処理した粉末を用いて作製したex-situ法TaシースMgB_2超伝導線材の特性2010
- Author(s)
  藤井宏樹, ら
- Organizer
  日本金属学会2010年春期大会
- Place of Presentation
  筑波大学
- Year and Date
  2010-03-28
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 溶液処理した粉末を用いて作製したex-situ法TaシースMgB_2超伝導線材の特性2010
- Author(s)
  藤井宏樹
- Organizer
  日本金属学会2010年春期大会
- Place of Presentation
  筑波大学(茨城県)
- Year and Date
  2010-03-28
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Mg-B-H(-C-O)系前駆体の熱分解によるMgB_2の作製2010
- Author(s)
  藤井宏樹, ら
- Organizer
  2010年日本金属学会秋期大会
- Place of Presentation
  北海道大学
- Year and Date
  2010-09-25
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Mg-B-H(-C-O)系前駆体の熱分解によるMgB_2の作製2010
- Author(s)
  藤井宏樹、熊倉浩明、小澤清
- Organizer
  2010年日本金属学会秋期大会
- Place of Presentation
  北海道大学(北海道)
- Year and Date
  2010-09-25
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 種々の温度及び濃度で溶液処理した粉末を用いて作製したex-situ法MgB_2線材の特性2009
- Author(s)
  藤井宏樹
- Organizer
  2009年秋季低温工学・超電導学会
- Place of Presentation
  岡山大学(岡山県)
- Year and Date
  2009-11-19
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 種々の温度で溶液処理したex-situ法MgB_2超伝導線材の特性2009
- Author(s)
  藤井宏樹, ら
- Organizer
  日本金属学会2009年秋期大会
- Place of Presentation
  京都大学
- Year and Date
  2009-09-16
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 種々の温度及び濃度で溶液処理した粉末を用いて作製したex-situ法MgB_2線材の特性2009
- Author(s)
  藤井宏樹, ら
- Organizer
  2009年秋季低温工学・超伝導学会
- Place of Presentation
  岡山大学
- Year and Date
  2009-11-19
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 種々の温度で溶液処理したex-situ法MgB_2超伝導線材の特性2009
- Author(s)
  藤井宏樹
- Organizer
  日本金属学会2009年秋期大会
- Place of Presentation
  京都大学(京都府)
- Year and Date
  2009-09-16
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] "Improved critica current densities in ex-situ processed MgB_2 tapes using powderstreated in chemical solutions"2008
- Author(s)
  Hiroki Fuju
- Organizer
  Materials Research Society 2008 Spring Meeting
- Place of Presentation
  Moswne West andSan Francisco Marriott
- Year and Date
  2008-03-25
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Improved critical current densities in ex-situ processed MgB_2 tapes using powders treated in chemical solution2008
- Author(s)
  H. Fujii, et. al.
- Organizer
  2008 Materials Research Society Spring Meeting
- Place of Presentation
  Moscone West and San Francisco Marriott, San Francisco, USA
- Year and Date
  2008-03-25
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Improved critical current densities in ex-situ processed MgB_2 tapes using powders treated in chemical solutions2008
- Author(s)
  H.Fujii,K.Togano,H.Kumakura and K.Ozawa
- Organizer
  Materials Research Society
- Place of Presentation
  Moscone West and San Francisco Marriott,San Francisco,USA
- Year and Date
  2008-03-25
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Improved critical current densities in ex-situ processed MgB_<2-x>C_x tapes using powders treated in chemical solutions2008
- Author(s)
  藤井宏樹, et al
- Organizer
  2008 Applied Superconductivity Conference
- Place of Presentation
  Hyatt Regency, Chicago
- Year and Date
  2008-08-18
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Improved critical current densities in ex-situ processed MgB_<2-x>_C_x tapes using powders treated in chemical solutions2008
- Author(s)
  H. Fujii
- Organizer
  2008 Applied Superconductivity Conference
- Place of Presentation
  Hyatt Regency, Chicago
- Year and Date
  2008-08-18
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] Ex-situ 法による炭素置換MgB_2超伝導線材の作製と特性2008
- Author(s)
  藤井宏樹
- Organizer
  日本金属学会2007年秋期大会
- Place of Presentation
  熊本大学
- Year and Date
  2008-09-24
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] ex-situ法による炭素置換MgB_2超伝導線材の作製と特性2008
- Author(s)
  藤井宏樹, ら
- Organizer
  日本金属学会2008年秋期大会
- Place of Presentation
  熊本大学
- Year and Date
  2008-09-24
- Data Source
  KAKENHI-PROJECT-20560312
[Presentation] 化学処理した粉を用いて作製したex-situ法によるMgB_2線材の超伝導特性2007
- Author(s)
  藤井宏樹、戸叶一正、熊倉浩明、小澤清
- Organizer
  低温工学協会
- Place of Presentation
  千葉大学
- Year and Date
  2007-05-16
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 「化学処理した粉を用いて作製したex-situ法MgB_2線材の粒間結合と臨界電流密度」2007
- Author(s)
  藤井宏樹
- Organizer
  2007年秋季低温工学・超電導学会
- Place of Presentation
  宮城県民会館
- Year and Date
  2007-11-20
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Superconducting properties of MgB_2 tapes fabricated through an ex-situ process using chemically treated powder2007
- Author(s)
  H. Fujii, et. al.
- Organizer
  Cryogenic Association of Japan 2007 Spring Annual Meeting
- Place of Presentation
  Chiba University
- Year and Date
  2007-03-16
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Properties of ex-situ processed MgB_2 superconducting tapes using chemically treated powder2007
- Author(s)
  H. Fujii, et. al.
- Organizer
  The Japan Institute of Metals 2007 Spring Annual meeting
- Place of Presentation
  Chiba Institute of Technology
- Year and Date
  2007-03-28
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 「化学処理した粉を用いて作製したex-situ法によるMgB_2線材の超伝導特性」2007
- Author(s)
  藤井宏樹
- Organizer
  2007年春季低温工学・超電導学会
- Place of Presentation
  千葉大学
- Year and Date
  2007-05-16
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 化学処理したMgB_2粉の使用とSiC添加によるex-situ法MgB2超伝導線材のJ_c向上2007
- Author(s)
  藤井宏樹
- Organizer
  日本金属学会2007年秋期大会
- Place of Presentation
  岐阜大学
- Year and Date
  2007-09-19
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 化学処理したMgB_2粉の使用とSiC添加によるex-situ法MgB_2超伝導線材のJ_c向上2007
- Author(s)
  藤井宏樹、戸叶一正、熊倉浩明、小澤清
- Organizer
  日本金属学会
- Place of Presentation
  岐阜大学
- Year and Date
  2007-09-19
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 化学処理した粉を用いて作製したex-situ法MgB_2線材の粒間結合と臨界電流密度2007
- Author(s)
  藤井宏樹、戸叶一正、熊倉浩明、小澤清
- Organizer
  低温工学協会
- Place of Presentation
  宮城県民会館
- Year and Date
  2007-11-20
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Grain coupling and critical current density in ex-situ processed MgB_2 tapes using chemically treated powder2007
- Author(s)
  H. Fujii, et. al.
- Organizer
  Cryogenic Association of Japan 2007 Fall Annual Meeting
- Place of Presentation
  Miyagi Kennmin Kaikan
- Year and Date
  2007-11-20
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Improvement in Jc of ex-situ processed MgB_2 superconducting tapes by using chemically treated MgB_2 powder and SiC addition2007
- Author(s)
  H. Fujii, et. al.
- Organizer
  The Japan Institute of Metals 2007 Fall Annual Meeting
- Place of Presentation
  Gifu University
- Year and Date
  2007-03-19
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 化学処理した粉を用いてex-situ法で作製したMgB_2超伝導線の特性2007
- Author(s)
  藤井宏樹、戸叶一正、熊倉浩明、小澤清
- Organizer
  日本金属学会
- Place of Presentation
  千葉工業大学
- Year and Date
  2007-03-28
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Microstructure and properties of MgB_2 superconducting tapes prepared by an ex-situ method using powder with chemical treatment2006
- Author(s)
  H. Fujii, et. al.
- Organizer
  Cryogenic Association of Japan 2006 Fall Annual Meeting
- Place of Presentation
  Kumamoto University
- Year and Date
  2006-11-20
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] 化学処理した粉を用いて作製したex-situ法によるMgB_2超伝導線材の組織と特性2006
- Author(s)
  藤井宏樹、戸叶一正、熊倉浩明、小澤清
- Organizer
  低温工学協会
- Place of Presentation
  熊本大学
- Year and Date
  2006-11-20
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560323
[Presentation] Lithium insertion and extraction properties of two types of the layered LiVO22006
- Author(s)
  K. Ozawa, H. Fujii, M. Hase, M. Eguchi, K. Uno
- Organizer
  International Meeting on Lithium Batteries (IMLB 2006)
- Place of Presentation
  Biarritz, France
- Data Source
  KAKENHI-PROJECT-18550171
[Presentation] マガディアイト化合物の層間を利用した機能性ナノコンポジットの作製2006
- Author(s)
  小澤清, 磯文夫, 藤井宏樹, 渡辺雄二郎, 山口仁志
- Organizer
  日本セラミックス協会第19回秋季シンポジウム
- Place of Presentation
  甲府市, 日本
- Data Source
  KAKENHI-PROJECT-18550171
[Presentation] 精製したMgB2-xCx粉を用いて作製したex situ法線材の超伝導特性
- Author(s)
  藤井宏樹、小澤清、北口仁
- Organizer
  2014年春季低温工学・超電導学会
- Place of Presentation
  タワーホール船堀
- Year and Date
  2014-05-26 – 2014-05-28
- Data Source
  KAKENHI-PROJECT-25420696

1. OZAWA Kiyoshi (90343855)

# of Collaborated Projects: 3 results

# of Collaborated Products: 30 results
2. KUMAKURA Hiroaki (90354307)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. TOGANO Kazumasa (60361169)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. MATSUMOTO Akiyoshi (50354303)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. MOCHIKU Takashi (20354293)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
6. HUR Jahmahn

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. IGAWA Naoki

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

FUJII Hiroki 藤井 宏樹

Research Projects

Research Products

Co-Researchers

Development of ex situ processed MgB2 condoctors with strong grain connectivityPrincipal Investigator

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Preparation and Battery Properties of Composite Cathode Materials for Lithium-Ion Batteries

Principal Investigator

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Enhancement of performance in PIT-processed MgB_2 superconducting tapes by chemical solution processPrincipal Investigator

Principal Investigator

Project Period (FY)

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Research Institution

Fabrication of magnesium di-boride superconductor applying a interface diffusion of composite material

Principal Investigator

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The study of cathode materials with a highly controlled microstructure for secondary lithium-battery systems

Principal Investigator

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Development of advanced MgB_2 superconducting tapes by controlling microstructurePrincipal Investigator

Principal Investigator

Project Period (FY)

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Research Institution

[Journal Article] Improved critical current density in ex situ processed MgB2 tapes by the size reduction of grains and crystallites by high-energy ball milling2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Effect of additions of Ca compounds to the filling powder on the reduction of MgO and the critical current density properties of ex situ processed MgB2 tapes2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Interface Strain-Induced Multiferroicity of a SmFeO_3 Film2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] The effect of refinement of carbon-substituted MgB2 filling powder using various starting powders on the microstructure and critical current density of ex situ processed superconducting tapes2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Electron diffraction and high-resolution electron microscopy studies on layered Li_<2-δ>(Mn_<1->xCo_x)_<1+δ>O_32013

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Electrode Properties of Li2MnO3 (C2/m) for a Lithium-Battery Cathode in Several Charge-Discharge Potential Ranges2013

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Electron diffraction and high-resolution electron microscopy studies on layered Li2-d(Mn1-xCox)1+dO32013

Author(s)

Journal Title

Data Source

[Journal Article] Electrochemical Characteristics of Layered Li_<1.95> Mn_<0.9> Co_<0.15> O_3(C2/m) as a Lithium-Battery Cathode2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Detrimental Effects Depending on the Sheath Materials in Ex Situ Processed Heat Treated MgB_2 Wires and Tapes2011

FUJII Hiroki 藤井宏樹