Achievements

Papers

[2023]

  • Microstructure evolution of FD-POEM powders during high-temperature plasma spheroidization. [Advanced Powder Technology, Accepted.] Zhenxing Zhou, Shunpei Kato, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    Under preparation

  • Development of Nanocarbon-Added Ti alloys and Composites Fabricated by Laser Powder Bed Fusion. [Titanium Japan, Vol. 71, No. 4 (2023), 301-306.] W. Zhou, M. Dong, Z. Zhou, N. Nomura
    • Short abstract

    Under preparation

  • Improvement of powder fabrication for additive manufacturing using ultrafine bubbles. [Additive Manufacturing Letters, Accepted.] Suxia Guo, Zhenxing Zhou, Mingqi Dong, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    Under preparation

  • Effects of powder surface conditions on the rheological behavior of Ti–6Al–4V alloy powders for additive manufacturing. [Powder Technology, 430, (2023), 119019, DOI: 10.1016/j.powtec.2023.119019.] Naoki Kakegawa, Shion Nanaumi, Zhenxing Zhou, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    Under preparation

  • Ultrafine-bubble-water-promoted nanoceramic decoration of metal powders for additive manufacturing. [NPG Asia Materials, 15, (2023), Article number 47, DOI: 10.1038/s41427-023-00494-9] Mingqi Dong, Weiwei Zhou, Suxia Guo, Naoyuki Nomura
    • Short abstract

    Under preparation

  • The effects of oxidation on the properties of Zr-added 316L powders for L-PBF (in Japanese). [Journal of Smart Processing, Vol. 12, No. 4 (2023), 202-207.] Naoki Watanabe, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    In this study, the effect of oxidation on the properties of Zr-doped 316L stainless steel powder was investigated for application to laser powder bed fusion (L-PBF). The collapse angle and laser absorptivity of 316L powder were improved by oxidation. The wetting angle of the 316L droplet was decreased by Zr addition and oxidation, which may contribute to the improvement of processability in L-PBF.

  • Microstructure and Mechanical Properties of MXene-Added Ti-6Al-4V Alloy Fabricated By Laser Powder Bed Fusion. [Materials Transactions, Vol. 64, No. 6 (2023), 1169-1174, DOI: 10.2320/matertrans.MT-ME2022009] Yu Zhang, Mingqi Dong, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    MXene (Ti3C2Tx) was incorporated into Ti-6Al-4V powders using a hetero-agglomeration process. The resulting MXene/Ti-6Al-4V mixed powder exhibited favorable processability for L-PBF. After the L-PBF process, the MXene decomposed and dissolved into the Ti matrix, resulting in a carbon super-saturated Ti-6Al-4V build consisting of ultrafine martensite structures with high strength.

  • Effects of Plasma Spheroidization Treatment on the Characteristics of MoSiBTiC Powders Fabricated by Freeze-Dry Pulsated Orifice Ejection Method. [Materials Transactions, Vol. 64, No. 6 (2023), 1119-1124, DOI: 10.2320/matertrans.MT-ME2022008] Zhenxing Zhou, Shunpei Kato, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    This study utilized plasma spheronization (PS) treatment to strengthen the MoSiBTiC powders prepared by the freeze-dry pulsed orifice ejection method (FD-POEM). Dense and spherical MoSiBTiC powders with uniform elemental distribution were obtained from porous FD-POEM particles. It was found that the combination of FD-POEM and PS was an effective method to produce high quality refractory powders with various compositions for L-PBF.

  • Powder fabrication and laser powder bed fusion of a MoSiBTiC-La2O3 alloy. [Crystals, Vol. 13 (2023), 215, DOI: 10.3390/cryst13020215] Chenguang Li, Suxia Guo, Zhenxing Zhou, Weiwei Zhou, Naoyuki Nomura
    • Short abstract

    Under preparation

  • Fabrication of a strong and ductile CuCrZr alloy using laser powder bed fusion. [Additive Manufacturing Letters, 5 (2023), 100121, DOI: 10.1016/j.addlet.2023.100121] Weiwei Zhou, Takato Kosaka, Shin-ichi Moriya, Takahiro Kimura, Takayuki Nakamoto, Naoyuki Nomura
    • Short abstract

    Small amount of Zr was alloyed to improve the laser absorptivity and flowability of CuCr alloy powders. Dense CuCrZr alloy builds were thus fabricated by laser powder bed fusion (L-PBF). Through post-treatments of hot isostatic pressing, solution heat treatment and aging, submicron Cr particles were precipitated, leading to the CuCrZr alloy builds with high-strength and ductility.

[2022]

  • Microstructures and Mechanical Properties of Carbon-Added Ti Composites Fabricated by Laser Powder Bed Fusion or Spark Plasma Sintering [Materials Transactions, Vol. 64 (2023), 54-60, DOI: 10.2320/matertrans.MT-MLA2022008, (Originally published in Journal of the Japan Institute of Light Metals, Vol. 72, No. 6 (2022), 314-320., DOI: 10.2464/jilm.72.314)] Mingqi Dong, Weiwei Zhou, Zhenxing Zhou and Naoyuki Nomura
  • Challenges in Heat-Resistant Alloy Powder Fabrication and Laser Additive Manufacturing [Bulletin of The Iron and Steel Institute of Japan, Vol. 27 (2022) No. 12, 847-852] Zhenxing Zhou, Weiwei Zhou, Naoyuki Nomura
  • Additive Manufacturing Materials as Powder Metallurgy Materials -An approach for Prediction of Mechanical Properties by Quantification of Microstructures- [Bulletin of The Iron and Steel Institute of Japan, Vol. 27 (2022) No. 12, 825-835] Yukiko Ozaki, Yuji Shigeta, Masatoshi Aramaki, Kazunari Shinagawa, Naoyuki Nomura, Katsuyoshi Kondoh, Ippei Obayashi
  • Simultaneous enhancement of powder properties, metal additive-manufacturability, and mechanical performance of Ti-6Al-4V alloys by 2D-nanocarbon decoration. [Materials Science & Engineering A, Vol. 859, (2022) 144215, DOI: 10.1016/j.msea.2022.144215.] Mingqi Dong, Weiwei Zhou, Zhenxing Zhou, Naoyuki Nomura
  • Development of β-zirconium alloys having low magnetic susceptibility and Young’s modulus by laser additive manufacturing [Journal of Japanese Society for Biomaterials, Vol. 40-4 (2022), 290-293] Naoyuki Nomura
  • Comparison of Ti-6Al-4V Alloy Powder Flow Analysis by Particle Image Velocimetry with Discrete Element Method Simulation [Journal of the Japan Society of Powder and Powder Metallurgy, accepted] Yohito Masuda, Kohei Kamata, Weiwei Zhou, Naoyuki Nomura
  • Elucidating the impact of severe oxidation on the powder properties and laser melting behaviors. [Materials & Design (open access), Vol. 221 (2022), 110959, DOI: 10.1016/j.matdes.2022.110959] Weiwei Zhou, Nina Takase, Mingqi Dong, Naoki Watanabe, Suxia Guo, Zhenxing Zhou, Naoyuki Nomura
  • Development of Alloy Powders for Biomedical Additive Manufacturing. [ASM Handbook, Volume 23A, Additive Manufacturing in Biomedical Applications, Roger J. Narayan, editor, 2022, pp. 160-163.] Naoyuki Nomura and Weiwei Zhou
  • Laser powder bed fusion of MoSiBTiC alloy powders produced by freeze-dry pulsated orifice ejection method. [Journal of Alloys and Compounds, Vol. 921 (2022), 165997, DOI: 10.1016/j.jallcom.2022.165997] Zhenxing Zhou, Suxia Guo, Shunpei Kato, Weiwei Zhou, Naoyuki Nomura
  • Chapter 4: Zirconium and Zirconium Alloys for Biomedical Use, ed. by Maryann.C. Wythers [Advances in Materials Science Research, Vol. 52 (2022), Nova Science Publishers, ISBN: 978-1-68507-856-0] T. Hanawa and N. Nomura
  • Experimental Characterization and Computational Simulation of Powder Bed for Powder Bed Fusion Additive Manufacturing. [Materials Transactions, in press (Originally published in Japanese in J. Jpn. Soc. Powder Powder Metallurgy 68 (2021) 457463., DOI: 10.2320/matertrans.MT-Y2021005] Keiko Kikuchi, Yuta Tanifuji, Weiwei Zhou, Naoyuki Nomura and Akira Kawasaki
  • Mechanical Responses of Additively Manufactured MoSiBTiC Alloy under Tensile and Compressive Loadings. [Materials Science & Engineering A, 839, (2022), 142848, DOI: 10.1016/j.msea.2022.142848] Tomo Takeda, Weiwei Zhou, Naoyuki Nomura, Kyosuke Yoshimi
  • Microstructure and mechanical properties of MRI-compatible Zr-9Nb-3Sn alloy fabricated by a laser powder bed fusion process. [Additive Manufacturing, 52, (2022), 102647, DOI: 10.1016/j.addma.2022.102647] Gözden Torun, Tatsuki Momose, Xiaohao Sun, Weiwei Zhou, Keiko Kikuchi, Naoyuki Nomura, Akira Kawasaki
  • Microstructures and mechanical properties of carbon-added Ti composites fabricated by laser powder bed fusion or spark plasma sintering[ Journal of The Japan Institute of Light Metals, Vol. 72, No. 6(2022), 314-320, DOI: 10.2464/jilm.72.314] Mingqi DONG, Weiwei ZHOU, Zhenxing ZHOU, Naoyuki NOMURA,
  • Laser additive manufacturing of pure molybdenum using freeze-dry pulsated orifice ejection method-produced powders. [Journal of Materials Research and Technology (open access), 16, (2022), 1508-1516, DOI: 10.1016/j.jmrt.2021.12.084] Suxia Guo, Weiwei Zhou, Zhenxing Zhou, Naoyuki Nomura
  • Structural evolution mechanism during 3D printing of MXene-reinforced metal matrix composites. [Composites Communications, 29, (2022), 101034, DOI: 10.1016/j.coco.2021.101034] Weiwei Zhou, Zhenxing Zhou, Suxia Guo, Yuchi Fan, Naoyuki Nomura
    •  

[2021]

  • Significant strengthening effect in few-layered MXene-reinforced Al matrix composites. [Materials Research Letters, 9, 3, (2021), 148-154] Weiwei Zhou, Zhenxing Zhou, Yuchi Fan, Naoyuki Nomura
  • Combination of hot isostatic pressing and subsequent heat treatment for additively manufactured Zr-1Mo components. [Materials Letters, 285, (2021), 129123] Xiaohao Sun, Debao Liu, Minfang Chen, Weiwei Zhou, Naoyuki Nomura, Takao Hanawa
  • Influence of annealing treatment on the microstructure, mechanical performance and magnetic susceptibility of low magnetic Zr–1Mo parts manufactured via laser additive manufacturing. [Materials Science and Engineering A, 804, (2021), 140740] Xiaohao Sun, Debao Liu, Minfang Chen, Weiwei Zhou, Naoyuki Nomura, Takao Hanawa
  • Simultaneous enhancement of dispersion and interfacial adhesion in Al matrix composites reinforced with nanoceramic-decorated carbon nanotubes. [Materials Science and Engineering A, 804, (2021),140784] Weiwei Zhou, Peng Yang, Yuchi Fan, Naoyuki Nomura, Akira Kawasaki
  • Laser powder bed fusion additive manufacturing, microstructure evolution, and mechanical performance of carbon nanotube-decorated titanium alloy powders. [Powder Technology, 382, (2021), 274-283] Weiwei Zhou, Kohei Kamata, Mingqi Dong, Naoyuki Nomura
  • Bioinspired low-magnetic Zr alloy with high strength and ductility. [Scripta Materialia, 199, (2021), 113856] Weiwei Zhou, Xiaohao Sun, Yusuke Tsutsumi, Naoyuki Nomura, Takao Hanawa
  • Recent advances in additive manufacturing of metallic dental materials. [The Journal of the Japanese Society for Dental Materials and Devices, 40, 2, (2021), 153-156] Naoyuki NOMURA
  • Preparation of Mono-sized ZrO2 Particles by Freeze-dry Pulsated Orifice Ejection Method [Journal of Smart Processing, 10, 4, (2021), 224-229] Mingqi DONG, Naohiro YASUDA, Kouki NISHIGAKI, Weiwei ZHOU and Naoyuki NOMURA
  • Development of low magnetic zirconium-based alloys and the additively manufactured builds for biomedical applications. [J. Jpn. Soc. Powder Powder Metallurgy, 68, 10, (2021), 431-435] Naoyuki NOMURA and Akira KAWASAKI
  • Experimental Characterization and Computational Simulation of Powder Bed for Powder Bed Fusion Additive Manufacturing. [J. Jpn. Soc. Powder Powder Metallurgy, 68, 10, (2021), 457-463] Keiko KIKUCHI, Yuta TANIFUJI, Weiwei ZHOU, Naoyuki NOMURA and Akira KAWASAKI
  • In-situ reduction of mo-based composite particles during laser powder bed fusion [Crystals, 11, 6, (2021), Article number 702] Suxia Guo, Weiwei Zhou, Zhenxing Zhou, Yuchi Fan, Wei Luo, Naoyuki Nomura
  • Incorporating Cobalt Nanoparticles in Nitrogen-Doped Mesoporous Carbon Spheres through Composite Micelle Assembly for High-Performance Lithium-Sulfur Batteries [ACS Applied Materials and Interfaces, 13, 32, (2021), 38604-38612] Yuan Fang, Yu Yao, Haoyu Yang, Yuchi Fan, Naoyuki Nomura, Weiwei Zhou, Dewei Ni, Xiaopeng Li, Wan Jiang, Pengpeng Qiu, Wei Luo
  • A novel approach of fabricating monodispersed spherical MoSiBTiC particles for additive manufacturing [Scientific Reports, 11, 1, (2021), Article number 16576] Zhenxing Zhou, Suxia Guo, Weiwei Zhou, Naoyuki Nomura

[2020]

  • Additive manufacturing 3d printing technology and HIP/CIP. [Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 67, 2, (2020), 52] Naoyuki Nomura, Itaru Masuoka
  • Torque property of titanium alloy cerebral aneurysm clips in a magnetic resonance scanner. [Journal of Materials Science: Materials in Medicine, 31, 1, (2020), 6] Minghui Tang, Shingo Kawahira, Naoyuki Nomura, Toru Yamamoto
  • Effects of quenching process on microstructure, mechanical properties and magnetic susceptibility in Zr[ sbnd] 1Mo alloy fabricated by powder bed fusion process. [Materials and Design, 187, (2020), 108356] Xiaohao Sun, Debao Liu, Weiwei Zhou, Naoyuki Nomura, Hisashi Doi, Yusuke Tsutsumi, Takao Hanawa
  • 超高温耐熱材料 MoSiBTiC 合金のレーザ三次元積層造形への試み. [セラミックス, 55, 2, (2020), 90-92] 野村直之, 周偉偉, 周振興, 吉見享祐
  • Novel laser additive-manufactured Mo-based composite with enhanced mechanical and oxidation properties. [Journal of Alloys and Compounds, 819, (2020), 152981]Weiwei Zhou, Keiko Kikuchi, Naoyuki Nomura, Kyosuke Yoshimi, Akira Kawasaki
  • Effects of process parameters on the mechanical properties of additively manufactured Zr–1Mo alloy builds. [Journal of the Mechanical Behavior of Biomedical Materials, 104, (2020), 103655] Xiaohao Sun, Debao Liu, Weiwei Zhou, Naoyuki Nomura, Yusuke Tsutsumi, Takao Hanawa
  • In-situ formation of ceramic layer on Mo-based composites via laser powder bed fusion. [Materialia, 10, (2020), 100655] Weiwei Zhou, Keiko Kikuchi, Naoyuki Nomura, Kyosuke Yoshimi, Akira Kawasaki
  • Uniformity of the glassy state of iron-based metallic glassy particles and reproducibility of fabricating microparts. [Materials and Design, 191, (2020), 108667] Rui Yamada, Noriharu Yodoshi, Naoyuki Nomura, Junji Saida, Akira Kawasaki
  • 3D プリンター用複合微粒子の開発. [軽金属, 70, 7, (2020), 310-311] 野村直之, 周偉偉
  • Hot isostatic pressing of MRI compatible Zr-1Mo components manufactured by laser powder bed fusion. [Materials Characterization, 169, (2020), 110657] Xiaohao Sun, Debao Liu, Minfang Chen, Weiwei Zhou, Naoyuki Nomura, Takao Hanawa
  • Effect of hot isostatic pressing on the microstructure and fracture toughness of laser additive-manufactured MoSiBTiC multiphase alloy. [Materials and Design, 196, (2020), 109132] Weiwei Zhou, Kengo Tsunoda, Naoyuki Nomura, Kyosuke Yoshimi
  • Design of high-performance Al4C3/Al matrix composites for electric conductor. [Materials Science and Engineering A, 798, (2020), 140331] Weiwei Zhou, Zhenxing Zhou, Korefumi Kubota, Hironobu Ono, Naoyuki Nomura, Akira Kawasaki
  • Microstructure and mechanical property of graphene oxide/AlSi10Mg composites fabricated by laser additive manufacturing. [Materials Characterization, 170, (2020), 110678] Mingqi Dong, Weiwei Zhou, Kohei Kamata, Naoyuki Nomura

[2019]

  • Hierarchical Nanoporous Copper Architectures via 3D Printing Technique for Highly Efficient Catalysts. [Small, 15, (2019), 1805432] Yongzheng Zhang, Xiaohao Sun, Naoyuki Nomura, Takeshi Fujita
  • Corrigendum to“Interfacial reaction induced efficient load transfer in few-layer graphene reinforced Al matrix composites for high-performance conductor” [ Compos Part B: Eng 167 (2019) 93–99] . [Composites Part B: Engineering, 179, (2019), 107463] Weiwei Zhou, Pavlina Mikulova, Yuchi Fan, Keiko Kikuchi, Naoyuki Nomura, Akira Kawasaki
  • Ultrathin and Light-Weight Graphene Aerogel with Precisely Tunable Density for Highly Efficient Microwave Absorbing. [ACS Applied Materials & Interfaces, 11, 49, (2019), 46386-46396] Jiaxin Ma, Wenhao Li, Yuchi Fan, Jiyi Yang, Qingkun Yang, Jiancheng Wang, Wei Luo, Weiwei Zhou, Naoyuki Nomura, Lianjun Wang, Wan Jiang
  • Structural evolution of multi-walled carbon nanotubes during the consolidation of Al matrix composites. [Materials Letters, 257, (2019), 126731] Weiwei Zhou, Chao Chen, Yuchi Fan, Keiko Kikuchi, Naoyuki Nomura, Akira Kawasaki
  • Thermal expansion behaviors of few-layered graphene-reinforced Al matrix composites.[Journal of Alloys and Compounds,792,(2019),988-993]W Zhou, C Chen, P Mikulova, M Dong, Y Fan, K Kikuchi, N Nomura, A Kawasaki
  • Interfacial reaction induced efficient load transfer in few-layer graphene reinforced Al matrix composites for high-performance conductor.[Composites Part B: Engineering 167, 93-99,167,(2019),93-99]W Zhou, P Mikulova, Y Fan, K Kikuchi, N Nomura, A Kawasaki
  • Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance.[Scripta Materialia 166, 81-86,166,(2019),81-86]X Lu, P Lu, Y Fan, W Zhou, S Gu, Z Zhou, J Zhang, L Su, L Wang, W Jiang
  • Powder fabrication and laser additive manufacturing of MoSiBTiC alloy.[Intermetallics,104,(2019),33-42]W Zhou, X Sun, K Tsunoda, K Kikuchi, N Nomura, K Yoshimi, A Kawasaki
  • In situ formation of uniformly dispersed Al4C3 nanorods during additive manufacturing of graphene oxide/Al mixed powders.[Carbon,141,(2019),67-75]W Zhou, M Dong, Z Zhou, X Sun, K Kikuchi, N Nomura, A Kawasaki

Awards

[2021]

  • December 2021
    Best Poster Presentation Award at the 4th meeting of the 7th Division in the Japan Institute of Metals and Materials
    ・Shunpei Kato (M2), Zhenxing Zhou, Weiwei Zhou, Naoyuki Nomura, "Observation of MoSiBTiC particle Formation Fabricated by Freeze-dry Pulsated Orifice Ejection Method"
    ・Kenshi Muramatsu（M1）, Weiwei Zhou, Naoyuki Nomura, "Fabrication of ZrO2 coatings on Mo Substrates using Laser Powder Bed Fusion"
  • Nobember 2021
    Best Presentation Award at the Japan Society of Powder and Powder Metallurgy Autumn Meeting (128th)
    ・Migqui Dong,（D1）, Weiwei Zhou, Naoyuki Nomura, "Fabrication of Carbon-added Ti-6Al-4V Alloy by Laser Powder Bed Fusion"
    ・Naoki Watanabe（M1）, Weiwei Zhou, Naoyuki Nomura, "Effect of Powder Oxidation on the Surface and Internal structure of Stainless Steel builds Fabricated by Laser Powder Bed Fusion"
  • September 2021
    Japan Institute of Metals and Materials, 2021 Fall Meeting (169th), Poster Prize
    ・Yuuki Nakatani (M1), Weiwei Zhou, and Naoyuki Nomura, "Fabrication of Stents using Laser Powder Bed Fusion"
    ・Naoki Watanabe (M1), Weiwei Zhou, and Naoyuki Nomura, "Fabrication of Oxide-dispersed Stainless Steels with Oxide layer using Laser Powder Bed Fusion"
  • May 2021
    Japan Light Metal Welding Association Award at the Japan Institute of Light Metals Annual Spring Meeting (140th)
    ・Kousuke Osano（M2）"Fabrication of high-performance Al/graphene composites by interface reaction control"

[2020]

  • May 2020
    The 44th JSPM (Japan Society of Powder and Powder Metallurgy) Award for Innovatory Research
    ・Naoyuki Nomura, Akira Kawasaki “Development of low-magnetic zirconium alloys for biomedical applications and additively manufactured builds with the alloys”
  • September 2020
    Excellence Poster Award at the Japan Institute of Metals and Material Autumn Presentation Meeting (167th)
    ・Kousuke Osano（M1）,Zhou Weiwei,Naoyuki Nomura "Fabrication of low-magnetic graphene/Al composite materials" ・Yohito Masuda（M1）,Kouhei Kamata,Zhou Weiwei,Naoyuki Nomura "Evaluation on Flow Properties of Ti Alloy Powder for Additive Manufacturing"
  • November 2020
    Best Presentation Award at the Japan Society of Powder and Powder Metallurgy Autumn Meeting (126th)
    ・Dong Mingqi（M2）"Fabrication of graphene oxide/Al composites by laser 3D powder additive manufacturing method"
  • December 2020
    Best Poster Award at the 3rd Japan Institute of Metals and Materials Field 7 Meeting
    ・Dong Mingqi（M2）,Zhou Weiwei,Naoyuki Nomura "Microstructures and mechanical properties of biomedical Ti-based composites with carbon added"

Publications

[2018]

  • 歯科理工学教育用語集 第3版[一般社団法人日本歯科医工学会,(2018)]野村直之
    ISBN978-4-263-45813-6
  • 多次元アディティブマニュファクチュアリング.[一般社団法人　日本溶接協会,(2018)] 中田一博、桐原聡秀（監修）
    ISBN978-4-907200-08-4

[2015]

  • Advances in Metallic Biomaterials.[Springer,(2015)] Naoyuki Nomura
    ISBN978-3-662-46835-7

[2010]

  • 医療用金属材料概論.[日本金属学会,(2010)]第４章千葉晶彦・野村直之 、第５章野村直之
    ISBN978-4-88903-075-4

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