IDE Naoki

写真a

Affiliation Department etc.

Department of Physical Science and Engineering
Department of Physical Science and Engineering

Title

Associate Professor

Graduate School

  • 1991.04
    -
    1994.03

    Yokohama City University  Graduate School, Division of Integrated Science  Department of Natural System ScienceDoctor's Course  Completed

  • 1989.04
    -
    1991.03

    Yokohama City University  Graduate School, Division of Integrated Science  Department of System Elements ScienceMaster's Course  Completed

Degree

  • Yokohama City University -  Doctor (Science)

  • Yokohama City University -  Master (Scinece)

Academic Society Affiliations

  • 1994.06
    -
    Now

    The Japan Institute of Metals

  • 1991.02
    -
    Now

    The Japan Society of Applied Physics

  • 1990.01
    -
    Now

    The Physical Society of Japan

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Physical properties of metals/Metal-base materials

  • Condensed matter physics I

  • Mathematical physics/Fundamental condensed matter physics

 

Thesis for a degree

  • Computer Simulation of Dislocations in Anthracene Crystals

    Naoki IDE 

      1994.03

    8   1

Papers

  • Machine learning based prediction of lattice thermal conductivity for half‑Heusler compounds using atomic information

    Hidetoshi Miyazaki, Tomoyuki Tamura, Masashi Mikami, Kosuke Watanabe, Naoki Ide, Osman Murat Ozkendir and Yoichi Nishino

    Scientific Reports ( Springer Nature )  11   13410   2021.06  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Amplitude-Dependent Internal Friction Study of Fatigue Deterioration in Carbon Fiber Reinforced Plastic Laminates

    Yoichi Nishino, Ryota Kawaguchi, Satoshi Tamaoka, Naoki Ide

    Materials Research ( Universidade Federal de São Carlos )  21   e20170858   2018.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    The amplitude-dependent internal friction in carbon fiber reinforced plastic (CFRP) laminates subjected to fatigue cycling has been measured and analyzed to convert into the plastic strain of the order of 10-8 as a function of effective stress. The microplastic flow indeed occurs in the stress range three orders of magnitude lower than the failure stress, and the stress-strain curves tend to shift to a lower stress as the number of cycles increases, thus indicating a decrease in the CFRP strength. The microflow stress at the plastic strain of 1×10-8 keeps a constant value of about 0.4 MPa in the range less than 103 cycles but then decreases gradually, whereas the Young’s modulus evaluated from the resonant frequency is almost constant up to 104 cycles where only transverse cracks are found. Thus we can successfully detect the onset of fatigue deterioration by means of the amplitude-dependent internal friction.

  • Effects of Grain Size on Deformation Behavior of Heusler-type Fe2VAl Alloys

    Yusuke Fukada, Naoki Ide, Yoichi Nishino

    Journal of the Japan Institute of Metals and Materials ( The Japan Institute of Metals and Materials )  80 ( 5 ) 317 - 320   2016.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    The deformation behavior of fine-grained Heusler-type Fe2VAl alloys (average grain diameter d = 14, 2.0, 1.4 and 0.4 μm) made by pulse current sintering (PCS) has been investigated in comparison with the arc-melted alloys with d = 130 μm. The yield stress of the Fe2VAl alloys at 300 K increases as the grain size decreases, following the Hall-Petch relationship except for d = 0.4 μm. An anomalous increase in the yield stress with increasing temperature can be observed for d = 14 and 130 μm, whereas the yield stress peak disappears for d = 2.0 μm. The yield stress decreases at a lower temperature for finer grains, which occurs in parallel with a steep rise in the strain rate sensitivity exponent m. The m value for d =2.0 μm reaches the maximum of 0.32 at 1123 K, and the temperature is almost 200 K lower than that for d =130 μm. The decrease in the yield stress can be explained by a lower temperature superplasticity for finer grained alloys.

  • Thermoelectric Properties of Off-Stoichiometric Heusler Alloys Fe2-yV1+x+yAl1-x

    Manabu Inukai, Hidetoshi Miyazaki, Naoki Ide, Yoichi Nishino

    Journal of the Japan Institute of Metals ( The Japan Institute of Metals and Materials )  79 ( 11 ) 621 - 626   2015.11  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    We report the thermoelectric properties of the off stoichiometric Fe2-yV1+x+yAl1-x alloys in the temperature range from 300 to 750 K. Fe2-yV1+x+yAl1-x alloys with V rich (1+x+y>1-x, i.e., y>-2x) and Al rich (y<-2x) composition show the negative and positive sign of Seebeck coefficient, respectively, and the peak temperature of Seebeck coefficient shifts to the higher temperature side with increasing V and Al composition. Electrical resistivity of Fe2-yV1+x+yAl1-x alloys shows the metallic temperature dependence. Due to the combination of the Fe/V and V/Al off stoichiometric effects, Fe1.97V1.12Al0.91 and Fe2.03V0.89Al1.08 alloys show the highest power factors of 4.03×10-3 W/mK2 for n type and 2.52×10-3 W/mK2 for p type at 500 K, respectively.

  • Thermoelectric properties of Heusler-type off-stoichiometric Fe2V1+xAl1−x alloys (共著)

    Hidetoshi Miyazaki, Suguru Tanaka, Naoki Ide, Kazuo Soda, Yoichi Nishino

    Materials Research Express   1 ( 1 ) 015901   2013.11  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    非化学量論組成Fe2V1+xAl1−x合金を作成し、熱電特性を評価した。xが負のときにp型となり、出力因子はx=-0.03で4.3x10-3 W/m2に達し、xが正のときにn型となり、出力因子はx=0.05で6.8x10-3 W/m2に達した。ピーク温度は300~600 Kであり、従来のFe2VAl系合金より優れた高温特性を有することが分かった。

  • Interaction Potential between a Dislocation and a Pinning Atom in FCC Metals (共著)

    Toshio Kosugi, Yoshiaki Kogure, Yoichi Nishino, Naoki Ide, Isao Nakamichi

    Solid State Phenomena   184   131 - 136   2012.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    転位と溶質原子の相互作用力を評価するためにCuの振幅依存性内部摩擦を測定した。一定の内部摩擦を与えるのに必要な応力振幅の温度依存性は、コットレル型の相互作用ポテンシャルを仮定することで説明された。これは、修正コットレル型ポテンシャルを必要とするAlの場合とは明らかに異なる。

  • Off-stoichiometric Effects on Thermoelectric Properties of Fe2VAl-based Compounds

    Yusuke Sandaiji, Naoki Ide, Yoichi Nishino, Takeshi Ohwada, Shota Harada, Kazuo Soda

    Journal of the Japan Society of Powder and Powder Metallurgy   57   207 - 212   2010.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Internal friction and Magnetic properties of Thermally Aged Fe-1wt.%Cu Alloys

    Yasuhiro Kamada, Yoichi Nishino, Sanzo Hosoi, Satoshi Tamaoka, Naoki Ide, Hiroaki Kikuchi, Satoru Kobayashi

    Materials Science and Engineering A   521-522   209 - 212   2009.09  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Thermoelectric Properties of p-Type Fe2(V1-x-yTixTay)Al Alloys

    Tomoyuki Mori, Naoki Ide, Yoichi Nishino

    Journal of the Japan Institute of Metals   72 ( 8 ) 593 - 598   2008.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Thermoelectric Properties of p-Type Heusler Compounds (Fe2-xCox)(V1-yTiy)Al

    Hiroyuki Nakayama, Naoki Ide, Yoichi Nishino

    Materials Transactions   49 ( 8 ) 1858 - 1862   2008.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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Presentations

  • Investigation of process conditions for Fe2VAl-based thermoelectric materials with nitride interface formation

    Naoto KATO, Kosuke WATANABE, Hidetoshi MIYAZAKI, Naoki IDE, Satoshi TAMAOKA, Yoichi NISHINO

    Annual Meeting of the Thermoelectrics Society of Japan 2020  2020.09  -  2020.09 

  • Microstructure Control of Fe2VAl-based Thermoelectric Material by Introducing Nitride Interface

    Kosuke WATANABE, Naoto KATO, Hidetoshi MIYAZAKI, Naoki IDE, Satoshi TAMAOKA, Yoichi NISHINO

    The Japan Institute of Metals, Spring Annual Meeting  2020.09  -  2020.09  The Japan Institute of Metals

  • The effect of V/Al off-stoichiometry on mechanical properties of Fe2VAl alloys

    Teruho YAMAMOTO, Naoki IDE, Yoichi NISHINO

    The Japan Institute of Metals, Autumn Annual Meeting  2020.09  -  2020.09  The Japan Institute of Metals

  • Thermoelectric Property and Microstructure of Fe2VAl-based Alloy by Nitridation

    Kosuke WATANABE, Naoto KATO, Hidetoshi MIYAZAKI, Naoki IDE, Satoshi TAMAOKA, Yoichi NISHINO

    The Japan Institute of Metals, Autumn Annual Meeting  2020.03  -  2020.03  The Japan Institute of Metals

  • Measurement of interaction potential between a dislocation and a solute atom in FCC metals

    Toshio Kosugi, Naoki Ide, Yoichi Nishino

    International symposium on Atomistic Processes of Crystal Plasticity  (“Fukutake Hall” in the Hongo Campus of The University of Tokyo)  2018.10  -  2018.10 

  • Effect of nonstoichiometric composition on thermal conductivity of thermoelectric material Fe2VAl

    Yujiro Takahara, Naoki Ide, Hidetoshi Miyazaki, Yoichi Nishino

    The Japan Institute of Metals, Autumn Annual Meeting  2018.09  -  2018.09  The Japan Institute of Metals

  • Measurement of the Interaction Potential betwee a Dislocation and a Solute Atom

    Toshio Kosugi, Naoki Ide, Yoichi Nishino

    The Physical Society of Japan, Autumn Meeting  2018.09  -  2018.09 

  • Low-Temperature Amplitude-Dependent Internal Friction of Cu-Al Dilute Alloys

    Toshio Kosugi, Keishi Wada, Naoki Ide, Yoichi Nishino

    The Physical Society of Japan, Autumn Meeting  2017.09  -  2017.09 

  • Measurement of Dislocation-Tin Atom Interaction-Energy in Copper by Low-Temperature Internal Friction

    Toshio Kosugi, Naoki Ide, Keishi Wada, Yoichi Nishino

    The Physical Society of Japan, Autumn Meeting  2016.09  -  2016.09 

  • Measurement of Dislocation-Tin Atom Interaction-Energy in Copper by Low-Temperature Internal Friction

    Toshio Kosugi, Naoki Ide, Keishi Wada, Yoichi Nishino

    The Physical Society of Japan, Autumn Meeting  2016.09  -  2016.09 

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Industrial Property

  • Thermoelectric Materials

    特願 2007-57398  特開 2008-218896  特許 5070546

    Thermoelectric Materials

  • Thermoelectric Materials

    特願 2008-506162   特開 WO2007/108176  特許 5303721

    Thermoelectric Materials

Grant-in-Aid for Scientific Research

  • Pseudogap Formation and Thermoelectric Properties of Heusler-type Compounds

    Grant-in-Aid for Scientific Research(B)

    Project Year: 2005.04  -  2008.03  Investigator(s): Yoichi Nishino

    The thermoelectric power of Fe2VAl can be expected to be well enhanced by doping or off-stoichiometry, because the density of states rises sharply in both sides of the pseudogap. We will investigate the temperature dependence of the Seebeck coefficient and the electrical resistivity in the Fe2VAl-based alloys, in addition to the measurement of the thermal conductivity at room temperature, to clarify the doping effect on the thermal and transport properties.

 
 

Academic Activity

  • 2021.04
    -
    2023.03

    The Japan Institute of Metals  

  • 2020.04
    -
    2022.03

    The Japan Institute of Metals  

  • 2020.04
    -
    2021.03

    The Japan Institute of Metals  

  • 2019.09
    -
    2019.10

    The Japan Institute of Metals  

  • 2019.08
    -
    2019.09

    The Japan Institute of Metals  

  • 2019.04
    -
    2019.05

    The Japan Institute of Metals  

  • 2019.04
    -
    2021.03

    The Japan Institute of Metals  

  • 2019.04
    -
    2019.11

    The Japan Institute of Metals  

  • 2018.11
    -
    2019.09

    The Thermoelectrics Society of Japan  

  • 2018.09
    -
    2018.10

    The Japan Institute of Metals  

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