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Research Article | Open Access

Chrysanthemum-like high-entropy diboride nanoflowers: A new class of high-entropy nanomaterials

Da LIUHonghua LIUShanshan NINGYanhui CHU( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
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High-entropy nanomaterials have been arousing considerable interest in recent years due to their huge composition space, unique microstructure, and adjustable properties. Previous studies focused mainly on high-entropy nanoparticles, while other high-entropy nanomaterials were rarely reported. Herein, we reported a new class of high-entropy nanomaterials, namely (Ta0.2Nb0.2Ti0.2W0.2Mo0.2)B2 high-entropy diboride (HEB-1) nanoflowers, for the first time. Formation possibility of HEB-1 was first theoretically analyzed from two aspects of lattice size difference and chemical reaction thermodynamics. We then successfully synthesized HEB-1 nanoflowers by a facile molten salt synthesis method at 1423 K. The as-synthesized HEB-1 nanoflowers showed an interesting chrysanthemum-like morphology assembled from numerous well-aligned nanorods with diameters of 20-30 nm and lengths of 100-200 nm. Meanwhile, these nanorods possessed a single-crystalline hexagonal structure of metal diborides and highly compositional uniformity from nanoscale to microscale. In addition, the formation of the as-synthesized HEB-1 nanoflowers could be well interpreted by a classical surface-controlled crystal growth theory. This work not only enriches the categories of high-entropy nanomaterials but also opens up a new research field on high-entropy diboride nanomaterials.


MH Tsai, JW Yeh. High-entropy alloys: A critical review. Mater Res Lett 2014, 2: 107-123.
CM Rost, E Sachet, T Borman, et al. Entropy-stabilized oxides. Nat Commun 2015, 6: 8485.
B Gludovatz, A Hohenwarter, D Catoor, et al. A fracture- resistant high-entropy alloy for cryogenic applications. Science 2014, 345: 1153-1158.
ZF Lei, XJ Liu, Y Wu, et al. Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes. Nature 2018, 563: 546-550.
ZM Li, KG Pradeep, Y Deng, et al. Metastable high-entropy dual-phase alloys overcome the strength-ductility trade-off. Nature 2016, 534: 227-230.
WC Hong, F Chen, Q Shen, et al. Microstructural evolution and mechanical properties of (Mg,Co,Ni,Cu,Zn)O high- entropy ceramics. J Am Ceram Soc 2019, 102: 2228-2237.
F Li, L Zhou, JX Liu, et al. High-entropy pyrochlores with low thermal conductivity for thermal barrier coating materials. J Adv Ceram 2019, 8: 576-582.
BL Ye, TQ Wen, KH Huang, et al. First-principles study, fabrication, and characterization of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramic. J Am Ceram Soc 2019, 102: 4344-4352.
XL Yan, L Constantin, YF Lu, et al. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramics with low thermal conductivity. J Am Ceram Soc 2018, 101: 4486-4491.
TJ Harrington, J Gild, P Sarker, et al. Phase stability and mechanical properties of novel high entropy transition metal carbides. Acta Mater 2019, 166: 271-280.
BL Ye, TQ Wen, MC Nguyen, et al. First-principles study, fabrication and characterization of (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramics. Acta Mater 2019, 170: 15-23.
L Feng, WG Fahrenholtz, GE Hilmas. Low-temperature sintering of single-phase, high-entropy carbide ceramics. J Am Ceram Soc 2019, 102: 7217-7224.
J Gild, YY Zhang, T Harrington, et al. High-entropy metal diborides: A new class of high-entropy materials and a new type of ultrahigh temperature ceramics. Sci Rep 2016, 6: 37946.
D Liu, TQ Wen, BL Ye, et al. Synthesis of superfine high-entropy metal diboride powders. Scripta Mater 2019, 167: 110-114.
H Chen, Z Zhao, H Xiang,, et al. Effect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling. J Mater Sci Technol 2020, 38: 80-85.
D Liu, HH Liu, SS Ning, et al. Synthesis of high-purity high-entropy metal diboride powders by boro/carbothermal reduction. J Am Ceram Soc 2019, 102: 7071-7076.
Y Xia, P Yang, Y Sun, et al. One-dimensional nanostructures: Synthesis, characterization, and applications. Adv Mater 2003, 15: 353-389.
YH Chu, SY Jing, X Yu, et al. High-temperature plateau-Rayleigh growth of beaded SiC/SiO2 nanochain heterostructures. Cryst Growth Des 2018, 18: 2941-2947.
YG Yao, ZN Huang, PF Xie, et al. Carbothermal shock synthesis of high-entropy-alloy nanoparticles. Science 2018, 359: 1489-1494.
SS Ning, TQ Wen, BL Ye, et al. Low-temperature molten salt synthesis of high-entropy carbide nanopowders. J Am Ceram Soc 2020, 103: 2244-2251.
R Djenadic, A Sarkar, O Clemens, et al. Multicomponent equiatomic rare earth oxides. Mater Res Lett 2017, 5: 102-109.
B Kharisov. A review for synthesis of nanoflowers. Recent Patents Nanotechnol 2008, 2: 190-200.
P Li, LS Ma, MJ Peng, et al. Elastic anisotropies and thermal conductivities of WB2 diborides in different crystal structures: A first-principles calculation. J Alloys Compd 2018, 747: 905-915.
WG Fahrenholtz, EJ Wuchina, WE Lee, et al. Ultra-high Temperature Ceramics: Materials for Extreme Environment Applications. John Wiley & Sons, Inc., 2014.
G Kaptay, SA Kuznetsov. Electrochemical synthesis of refractory borides from molten salts. Plasmas Ions 1999, 2: 45-56.
RJ Kirkpatrick. Crystal growth from the melt: A review. American Mineralogist 1975, 60: 798-814.
AJ Ardell, V Ozolins. Trans-interface diffusion-controlled coarsening. Nat Mater 2005, 4: 309-316.
KA Jackson. The interface kinetics of crystal growth processes. Interface Sci 2002, 10: 159-169.
M Elwenspoek. Comment on the α-factor of Jackson for crystal growth from solution. J Cryst Growth 1986, 78: 353-356.
RS Wagner, WC Ellis. Vapor-liquid-solid mechanism of single crystal growth. Appl Phys Lett 1964, 4: 89-90.
Y Shiohara, A Endo. Crystal growth of bulk high-Tc superconducting oxide materials. Mater Sci Eng: R: Rep 1997, 19: 1-86.
MK Kang, DY Kim, NM Hwang. Ostwald ripening kinetics of angular grains dispersed in a liquid phase by two- dimensional nucleation and abnormal grain growth. J Eur Ceram Soc 2002, 22: 603-612.
W Jo, DY Kim, NM Hwang. Effect of interface structure on the microstructural evolution of ceramics. J Am Ceram Soc 2006, 89: 2369-2380.
WZ Zhou. Reversed crystal growth: Implications for crystal engineering. Adv Mater 2010, 22: 3086-3092.
I Sunagawa. Crystals: Growth, Morphology, & Perfection. Cambridge University Press, 2007.
MI Vesselinov. Crystal Growth for Beginners: Fundamentals of Nucleation, Crystal Growth and Epitaxy. World Scientific, 2016.
W Sun, JC Liu, HM Xiang, et al. A theoretical investigation on the anisotropic surface stability and oxygen adsorption behavior of ZrB2. J Am Ceram Soc 2016, 99: 4113-4120.
YH Chu, SY Jing, D Liu, et al. Morphological control and kinetics in three dimensions for hierarchical nanostructures growth by screw dislocations. Acta Mater 2019, 162: 284-291.
Journal of Advanced Ceramics
Pages 339-348
Cite this article:
LIU D, LIU H, NING S, et al. Chrysanthemum-like high-entropy diboride nanoflowers: A new class of high-entropy nanomaterials. Journal of Advanced Ceramics, 2020, 9(3): 339-348.








Web of Science






Received: 26 February 2020
Accepted: 08 March 2020
Published: 05 June 2020
© The Author(s) 2020

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