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Journal of Inorganic Materials, Volume. 40, Issue 7, 808(2025)

Preparation of High-entropy Boride Powders for Plasma Spraying by Inductive Plasma Spheroidization

Leyangyang YU1,2, Fangxia ZHAO1、*, Shuxin ZHANG2, Yixiang XU2, Yaran NIU2、*, Zhenzhong ZHANG1, and Xuebin ZHENG2
Author Affiliations
  • 11. College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China
  • 22. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (2)
    References (24)
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    Figures & Tables(12)
    Flow chart for preparation of different (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders
    1. Flow chart for preparation of different (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders

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    Cellular modeling of binary transition metal boride
    2. Cellular modeling of binary transition metal boride

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    XRD patterns of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders prepared by different processes
    3. XRD patterns of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders prepared by different processes

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    SEM images and EDS mappings of MIX (a1-a4), BTR (b1-b4), and IPS (c1-c4) powders
    4. SEM images and EDS mappings of MIX (a1-a4), BTR (b1-b4), and IPS (c1-c4) powders

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    TG-DSC curves of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders prepared by three processes (a) and Gibbs free energy for the oxidation reaction of single-component borides (b)
    5. TG-DSC curves of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders prepared by three processes (a) and Gibbs free energy for the oxidation reaction of single-component borides (b)

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    XRD patterns of (Zr1/3Nb1/3Ti1/3)B2, (Zr1/4Ta1/4Nb1/4Ti1/4)B2, and (Zr1/5Cr1/5Ta1/5Nb1/5Ti1/5)B2 powders prepared by IPS
    6. XRD patterns of (Zr1/3Nb1/3Ti1/3)B2, (Zr1/4Ta1/4Nb1/4Ti1/4)B2, and (Zr1/5Cr1/5Ta1/5Nb1/5Ti1/5)B2 powders prepared by IPS

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    SEM images and EDS mappings of (Zr1/3Nb1/3Ti1/3)B2 (a), (Zr1/4Ta1/4Nb1/4Ti1/4)B2 (b), and (Zr1/5Cr1/5Ta1/5Nb1/5Ti1/5)B2 (c) powders prepared by IPS
    7. SEM images and EDS mappings of (Zr1/3Nb1/3Ti1/3)B2 (a), (Zr1/4Ta1/4Nb1/4Ti1/4)B2 (b), and (Zr1/5Cr1/5Ta1/5Nb1/5Ti1/5)B2 (c) powders prepared by IPS

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    Schematic diagram of inductive plasma spheroidization
    8. Schematic diagram of inductive plasma spheroidization

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    Atomic radii and ground-state energies of different transition metals Me
    9. Atomic radii and ground-state energies of different transition metals Me

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    • Table 1. Process parameters for powder preparation by inductive plasma spheroidization

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      Table 1. Process parameters for powder preparation by inductive plasma spheroidization

      ParameterValue
      Second gas (H2)/slpm30-60
      Primary gas (Ar)/slpm120-150
      Chamber pressure/psig3-7
      Powder feed rate/(g·min-1)20-40

    • Table 2. Particle size distribution, apparent and tap densities of three kinds of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders

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      Table 2. Particle size distribution, apparent and tap densities of three kinds of (Zr1/4Hf1/4Ta1/4Ti1/4)B2 powders

      PowderD10/μm D50/μm D90/μm D97/μm Apparent density/(g·cm-3) Tap density/(g·cm-3)
      MIX16.5333.1461.7277.851.932.38
      BTR19.6534.9266.6679.612.252.82
      IPS11.0828.6556.6173.304.404.77

    • Table 3. Density functional theory energies (Etot) and cohesive energies (Ecoh) of (Me0.5Zr0.5)B2

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      Table 3. Density functional theory energies (Etot) and cohesive energies (Ecoh) of (Me0.5Zr0.5)B2

      (Me0.5Zr0.5)B2Etot/(eV·atom-1) Ecoh/(eV·atom-1)
      (Ti0.5Zr0.5)B2-49.14-7.29
      (V0.5Zr0.5)B2-49.06-7.06
      (Cr0.5Zr0.5)B2-48.38-6.62
      (Nb0.5Zr0.5)B2-50.57-7.37
      (Mo0.5Zr0.5)B2-50.22-7.07
      (Hf0.5Zr0.5)B2-51.37-7.49
      (Ta0.5Zr0.5)B2-52.20-7.59
      (W0.5Zr0.5)B2-51.72-7.32
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    Leyangyang YU, Fangxia ZHAO, Shuxin ZHANG, Yixiang XU, Yaran NIU, Zhenzhong ZHANG, Xuebin ZHENG. Preparation of High-entropy Boride Powders for Plasma Spraying by Inductive Plasma Spheroidization[J]. Journal of Inorganic Materials, 2025, 40(7): 808

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    Paper Information

    Category:

    Received: Jan. 7, 2025

    Accepted: --

    Published Online: Sep. 3, 2025

    The Author Email: Fangxia ZHAO (fangxiazhao@126.com), Yaran NIU (yrniu@mail.sic.ac.cn)

    DOI:10.15541/jim20250008

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology