閻　紀旺 (ヤン　ジワン)

Yan, Jiwang

写真a

所属（所属キャンパス）

理工学部 機械工学科 （矢上）

職名

教授

HP

外部リンク
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総合紹介 【 表示 ／ 非表示 】

  • 高付加価値型ものづくりを実現するための、マイクロ・ナノ領域での材料除去・変形および物性制御に基づく高精度・高効率・省エネ・省資源の加工技術の研究開発に取り組んでいる。特に超精密機械加工、マイクロ・ナノ構造形成、レーザ加工・欠陥修復などを中心に新技術の提案ならびにその原理の解明を進めている。

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経歴 【 表示 ／ 非表示 】

  • 2000年04月
    -
    2001年09月

    東北大学工学研究科助手

  • 2001年10月
    -
    2005年03月

    北見工業大学助教授

  • 2005年04月
    -
    2007年03月

    東北大学工学研究科助教授

  • 2007年04月
    -
    2012年03月

    東北大学工学研究科准教授

  • 2008年02月
    -
    2008年04月

    シドニー大学日本学術振興会特定国派遣研究者

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学歴 【 表示 ／ 非表示 】

  • 1991年07月

    吉林大学, 工学部, 機械工学科

    大学, 卒業

  • 1994年03月

    吉林大学, 工学研究科, 機械工学専攻

    大学院, 修了, 修士

  • 1996年01月

    清華大学, 工学研究科, 精密機械学専攻

    大学院, 退学, 博士

  • 2000年03月

    東北大学, 工学研究科, 機械電子工学専攻

    大学院, 修了, 博士

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学位 【 表示 ／ 非表示 】

  • 博士（工学）, 東北大学, 課程, 2000年03月

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研究分野 【 表示 ／ 非表示 】

  • ものづくり技術（機械・電気電子・化学工学） / 加工学、生産工学 (精密工学・機械加工学)

  • ナノテク・材料 / 材料加工、組織制御 (材料加工・処理)

  • ナノテク・材料 / ナノマイクロシステム (マイクロ・ナノデバイス)

  • ナノテク・材料 / 複合材料、界面 (応用物性・結晶工学)

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研究キーワード 【 表示 ／ 非表示 】

  • 超精密加工

  • マイクロ・ナノ加工

  • レーザプロセッシング

  • 電気加工

  • ナノメカニクス

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著書 【 表示 ／ 非表示 】

  • Advanced Ceramic Coatings: Fundamentals, Manufacturing, and Classification, R. K. Gupta, A. Motallebzadeh, S. Kakooei, T. A. Nguyen, A. Behera (eds.)

    P. J. Liew, J. Yan, C. Y. Yap, Elsevier B. V., 2023年06月

    担当範囲: Chapter 19: Electrical discharge coating with quarry dust powder suspension,  担当ページ： 433-460

  • Electrical discharge coating with quarry dust powder suspension

    Liew P.J., Yan J., Yap C.Y., Advanced Ceramic Coatings: Fundamentals, Manufacturing, and Classification, 2023年01月

    　概要を見る

    In this chapter, firstly, a comprehensive review of electrical discharge coating (EDC) was made to identify a new research area, then the EDC technique with quarry dust powder suspension on tungsten carbide cobalt was introduced. The effects of quarry dust suspension on the coated surface characteristics and tribological properties were investigated. By using EDC with quarry dust suspension, a layer of coating consisting of hard carbides (SiC, Mg2C3, Fe2C, and CaC2) and oxide phases (SiO2, Al2O3, Fe2O3, CaO, CoO, and ZnO) due to material migration was confirmed, and the coating layer thickness was greatly influenced by quarry dust concentration. Under coating conditions of 5 A of peak current (I p ) and 300 μs of pulse on time (T on ), the Vickers microhardness increased by 28%, while the surface roughness, coefficient of friction, and wear scar depth of the coating layer decreased by 29%, 61%, and 63%, respectively, when compared with the original substrate.

  • Multidisciplinary Science in Micro/Nanoscale Manufacturing

    J. Yan (Guest editor), Elsevier B.V., 2020年12月

    担当範囲: International Journal of Machine Tools and Manufacture, Volume 159 (Special Issue)

  • Micro and nanoscale laser processing of hard brittle materials

    J. Yan and N. Takayama, Elsevier B.V., 2019年11月,  ページ数： 242

    担当範囲: 1-242

  • リチウムイオン二次電池用シリコン系負極材の開発動向

    閻 紀旺, シーエムシー出版, 2019年11月,  ページ数： 251

    担当範囲: 第3章 レーザ照射による廃シリコン粉末からのマイクロピラー形成とその負極特性, 20-33

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論文 【 表示 ／ 非表示 】

  • Formation of Laser-Induced Periodic Surface Structures on Reaction-Bonded Silicon Carbide by Femtosecond Pulsed Laser Irradiation

    Meshram T., Yan J.

    Nanomanufacturing and Metrology （Nanomanufacturing and Metrology)  6 （ 1 ）  2023年12月

    ISSN  2520811X

    　概要を見る

    Reaction-bonded silicon carbide (RB-SiC) is an excellent engineering material with high hardness, stiffness, and resistance to chemical wear. However, its widespread use is hindered due to the properties mentioned above, making it difficult to machine functional surface structures through mechanical and chemical methods. This study investigated the fundamental characteristics of laser-induced periodic surface structures (LIPSSs) on RB-SiC via femtosecond pulsed laser irradiation at a wavelength of 1028 nm. Low-spatial-frequency LIPSS (LSFL) and high-spatial-frequency LIPSS (HSFL) formed on the surface along directions perpendicular to the laser polarization. SiC grains surrounded by a large amount of Si show a reduced threshold for LIPSS formation. By varying laser fluence and scanning speed, HSFL–LSFL hybrid structures were generated on the SiC grains. Transmission electron microscopy observations and Raman spectroscopy were carried out to understand the formation mechanism of the hybrid LIPSS. A possible mechanism based on the generation of multiple surface electromagnetic waves due to the nonlinear response of SiC was proposed to explain the hybrid structure formation. Furthermore, the direction of laser scanning with respect to laser polarization affects the uniformity of the generated LIPSS.

  • Multilayer Graphene-Coated Silicon Carbide Nanowire Formation Under Defocused Laser Irradiation

    Minami K., Kobinata K., Yan J.

    Nanomanufacturing and Metrology （Nanomanufacturing and Metrology)  6 （ 1 ）  2023年12月

    ISSN  2520811X

    　概要を見る

    Graphene-coated silicon carbide (SiC@C) core–shell nanostructures have attracted attention in the fields of energy storage and nanoelectronics. In this study, multilayer graphene-coated silicon carbide (SiC) nanowires were obtained through the laser irradiation of a mixture target of graphite powder and silicon (Si) grinding sludge discharged from Si wafer manufacturing. Laser irradiation was performed using an ytterbium (Yb) fiber pulsed laser with a pulse width of 10 ms and a wavelength of 1070 nm with various defocus distances. The effect of laser defocusing on the morphology of the generated nanostructures was investigated. Results showed that nanowires were produced under the defocused conditions, and nanoparticles were observed at the on-focus position. The products obtained under all defocused conditions showed a core–shell structure, and the SiC nanowires were covered by graphene layers. The aspect ratio of the nanowires increased with the defocus distance. Observation of the laser-induced plume using a high-speed camera showed that when the laser was defocused, the plume propagation speed slowed down, and the shape of the plume changed to a swirling vortex. The nanowire formation was closely related to the propagation speed and shape variation of the plume. This successful production of SiC@C core–shell nanowires from Si waste opens up the possibility of the sustainable development of new materials for energy storage and nanoelectronics.

  • Tool wear and surface integrity in liquid nitrogen clean cutting of cobalt-based superalloy GH605 with AlTiN coated tools

    Li X., Zheng G., Yan J., Cheng X., Li Y., Cui E.

    Wear （Wear)  530-531 2023年10月

    ISSN  00431648

    　概要を見る

    The tool wear is severe and the machined surface quality is low in dry cutting of cobalt-based superalloy. The traditional coolant is harmful to the environment and not in line with sustainable development. The liquid nitrogen (LN2) clean cutting of cobalt-based superalloy GH605 using AlTiN coated tools is proposed in this work. The tool wear mechanism and the machined surface integrity are investigated. The results show that, with the decrease of LN2 injection temperature, the sharp wear stage of the tool can be delayed. The injection temperature directly affects the tool life. Compared with dry cutting, the tool life is increased by 42.5% at LN2 injection of −190 °C. Under the lower liquid nitrogen condition, the coating peeling is reduced on the rake face. The decrease of LN2 injection temperature can effectively reduce the damaged area of the flank face and inhibit the oxidation wear. The injection temperature between −30 °C and −150 °C can significantly reduce the surface roughness. The minimum surface roughness value at the injection temperature of −90 °C is 0.486 μm, which is 39.4% lower than that at dry cutting condition. When the LN2 injection temperature is below −90 °C, the thickness of the white layer is less than half of that in dry cutting condition. The hardness of the machined surface is enhanced and the residual stress is reduced at injection temperature below −150 °C. This work demonstrates the possibility of improving the machinability of cobalt-based superalloy by optimizing the LN2 injection temperature.

  • Nanosecond laser coloration of Ti-based metallic glass under various laser parameters and irradiation atmospheres

    Zhang H., Wang C., Huang H., Zhang L., Yan J.

    Journal of Non-Crystalline Solids （Journal of Non-Crystalline Solids)  618 2023年10月

    ISSN  00223093

    　概要を見る

    Laser coloration is an emerging technique for surface functionalization of metallic glasses (MGs). Understanding the influence of laser parameters on surface color of MGs will accelerate their commercialization. Herein, surface coloration was conducted on a Ti-based MG, and the hue–saturation–intensity (HSI) color space was employed to evaluate color variation. Various colors were achieved by varying the average power and scanning speed in an ambient atmosphere. The results indicated that the overlap rate and number of repetitive scans had a negligible effect on the color and significantly changed the microscopic morphology. The irradiated surfaces were yellowish and colorless in nitrogen and argon atmospheres. Furthermore, the effect of morphology on the surface color and the mechanism of surface coloration were examined. This study demonstrates that nanosecond laser irradiation is an effective method for achieving surface coloration of MGs, which is expected to enrich the surface functionality of MG products.

  • Achieving superhydrophobicity of the FeCoCrMnNi surface via synergistic laser texturing and low temperature annealing

    Wang C., Huang H., Cui M., Zhang Z., Zhang L., Yan J.

    Journal of Laser Applications （Journal of Laser Applications)  35 （ 3 ）  2023年08月

    ISSN  1042346X

    　概要を見る

    Superhydrophobic surfaces are highly desirable due to their remarkable water-repellent behavior. Laser texturing with subsequent low surface energy modification is a versatile strategy for creating such surfaces. In this study, via synergistic laser texturing and low temperature annealing, superhydrophobicity was first attempted to be achieved on the FeCoCrMnNi surface. By optimizing the laser parameters, the arrays with large depth-to-width ratios were constructed. Subsequently, by annealing at a low temperature, the transition process from superhydrophilicity to superhydrophobicity was successfully achieved on the FeCoCrMnNi surface. The effects of the hatching interval on the wettability were investigated, and the mechanism of wettability transition for FeCoCrMnNi was discussed. According to the experimental results and analysis, the textured surfaces exhibited excellent superhydrophobicity at different hatching intervals and a maximum contact angle of 165° was obtained. Furthermore, the created superhydrophobic surfaces possessed good liquid capture and self-cleaning capabilities and enabled magnification for optical imaging. The wettability transition after low temperature annealing was attributed to the absorption of airborne organic compounds. This study provides an efficient, clean, and versatile strategy to achieve superhydrophobicity of the FeCoCrMnNi surface by laser processing.

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総説・解説等 【 表示 ／ 非表示 】

  • 金属付加製造品のレーザ研磨技術

    閻 紀旺

    砥粒加工学会誌 67 ( 8 ) 440 - 443 2023年08月

    記事・総説・解説・論説等（学術雑誌）, 単著, 筆頭著者

  • 硬脆材料の超精密延性モード加工

    閻 紀旺

    日本機械学会誌 125 ( 1247 ) 11 - 14 2022年10月

    記事・総説・解説・論説等（学術雑誌）, 単著, 筆頭著者, 責任著者

  • 超音波振動援用研削による炭素系難削材の加工

    閻 紀旺

    精密工学会誌 88 ( 7 ) 541 - 545 2022年07月

    記事・総説・解説・論説等（学術雑誌）, 単著, 筆頭著者, 責任著者

  • 放電加工機上での電解加工による微細溝の表面仕上げ

    閻 紀旺

    型技術 37 ( 4 ) 14 - 17 2022年04月

    記事・総説・解説・論説等（商業誌、新聞、ウェブメディア）, 共著, 筆頭著者, 責任著者

  • 多結晶ダイヤモンド工具を用いた単結晶SiCの放電・研削複合加工

    閻 紀旺

    砥粒加工学会誌 65 ( 12 ) 650 - 653 2021年12月

    記事・総説・解説・論説等（学術雑誌）, 単著

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研究発表 【 表示 ／ 非表示 】

  • Laser-induced periodic surface structures generation on single-crystal 4H-SiC by femtosecond pulsed infrared laser irradiation

    T. Meshram, J. Yan

    The 19th International Conference on Precision Engineering (ICPE2022) (Singapore) , 

    2022年11月
    -
    2022年12月
    , 

    口頭発表（一般）

  • Cutting of Microgrooves on Ferrous Metal by Using Laser-Processed cBN Tools

    D. Kitagawa, T. Meshram, J. Yan

    The 19th International Conference on Precision Engineering (ICPE2022) (Singapore) , 

    2022年11月
    -
    2022年12月
    , 

    口頭発表（一般）

  • Effect of dopant concentration on femtosecond pulsed laser processing characteristics of yttria-stabilized zirconia

    Y. Yamamuro, T. Shimoyama, J. Yan

    The 19th International Conference on Precision Engineering (ICPE2022) (Singapore) , 

    2022年11月
    -
    2022年12月
    , 

    口頭発表（一般）

  • A Novel Calibration Method of Machining Misalignment in FTS-Based Diamond Turning

    S. Tanikawa, J. Yan

    The 9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN 2022) (Singapore) , 

    2022年11月
    , 

    口頭発表（一般）

  • Fabrication of optical surfaces on polymethyl methacrylate by ultra-precision diamond turning

    M. Shimizu, J. Yan

    The 9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN 2022) (Singapore) , 

    2022年11月
    , 

    口頭発表（一般）

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受賞 【 表示 ／ 非表示 】

  • 精密工学会論文賞

    Lin Zhang, Allen Yi, 閻 紀旺, 2023年03月, 精密工学会, Flexible fabrication of Fresnel micro-lens array by off-spindle-axis diamond turning and precision glass molding

    受賞区分： 国内学会・会議・シンポジウム等の賞

  • 2022 IJEM Best Paper Award

    Y. Sato, J. Yan, 2023年03月, International Journal of Extreme Manufacturing (IJEM), IoP publishing, Tool path generation and optimization for freeform surface diamond turning based on an independently controlled fast tool servo

    受賞区分： 学会誌・学術雑誌による顕彰

  • 工作機械技術振興賞（論文賞）

    笠井慎平, 袖平智樹, 閻 紀旺, 2021年06月, 工作機械技術振興財団, 炭素拡散反応を用いた形彫り放電加工による多結晶ダイヤモンドの３次元形状創製

    受賞区分： 出版社・新聞社・財団等の賞

  • 工作機械技術振興賞（論文賞）

    長山晃大, 閻 紀旺, 2021年06月, 工作機械技術振興財団, Measurement and Compensation of Tool Contour Error Using White Light Interferometry for Ultra-Precision Diamond Turning of Freeform Surfaces

    受賞区分： 出版社・新聞社・財団等の賞

  • 日本機械学会賞（論文）

    寺林俊雄,　閻 紀旺, 2021年04月, 日本機械学会, 2成分の波状微細構造をもつロール金型の超精密切削加工

    受賞区分： 国内学会・会議・シンポジウム等の賞

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担当授業科目 【 表示 ／ 非表示 】

  • 超精密加工計測

    2023年度

  • マルチディシプリナリ・デザイン科学特別講義

    2023年度

  • 精密加工学

    2023年度

  • 学外特別研修（中期インターンシップ）

    2023年度

  • 学外特別研修（長期インターンシップ）

    2023年度

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所属学協会 【 表示 ／ 非表示 】

  • 日本機械学会, 

    1997年04月
    -
    継続中

  • 精密工学会, 

    1997年04月
    -
    継続中

  • 砥粒加工学会, 

    2000年04月
    -
    継続中

  • 応用物理学会, 

    2004年04月
    -
    継続中

  • レーザ加工学会, 

    2009年01月
    -
    継続中

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委員歴 【 表示 ／ 非表示 】

  • 2022年05月
    -
    継続中

    理事, レーザ協会

  • 2022年03月
    -
    継続中

    理事・執行理事・出版部会長・校閲委員長, 精密工学会

  • 2019年04月
    -
    2022年03月

    学術誌編修部会委員, 日本機械学会

  • 2019年01月
    -
    継続中

    Editorial Board Member, International Journal of Extreme Manufacturing

  • 2018年04月
    -
    継続中

    Editorial Board Member, Journal of Micromanufacturing

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