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Journal of Advanced Ceramics 2020, 9(3): 339-348 https://doi.org/10.1007/s40145-020-0373-x
Research Article | Open Access | Issue | Published: 05 June 2020

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

Show Author's Information Da LIU,  Honghua LIU,  Shanshan NING,  Yanhui CHU( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
Keywords:
high-entropy materials, diborides, nanomaterials, molten salt synthesis
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. https://doi.org/10.1007/s40145-020-0373-x
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Abstract Full text About this article

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.


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About this article

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

Show Author's information Da LIU, Honghua LIU, Shanshan NING, Yanhui CHU( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China

Abstract

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.

Keywords: high-entropy materials, diborides, nanomaterials, molten salt synthesis

References(38)

[1]
MH Tsai, JW Yeh. High-entropy alloys: A critical review. Mater Res Lett 2014, 2: 107-123.
DOI Google Scholar
[2]
CM Rost, E Sachet, T Borman, et al. Entropy-stabilized oxides. Nat Commun 2015, 6: 8485.
DOI Google Scholar
[3]
B Gludovatz, A Hohenwarter, D Catoor, et al. A fracture- resistant high-entropy alloy for cryogenic applications. Science 2014, 345: 1153-1158.
DOI Google Scholar
[4]
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.
DOI Google Scholar
[5]
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.
DOI Google Scholar
[6]
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.
DOI Google Scholar
[7]
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.
DOI Google Scholar
[8]
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.
DOI Google Scholar
[9]
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.
DOI Google Scholar
[10]
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.
DOI Google Scholar
[11]
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.
DOI Google Scholar
[12]
L Feng, WG Fahrenholtz, GE Hilmas. Low-temperature sintering of single-phase, high-entropy carbide ceramics. J Am Ceram Soc 2019, 102: 7217-7224.
DOI Google Scholar
[13]
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.
DOI Google Scholar
[14]
D Liu, TQ Wen, BL Ye, et al. Synthesis of superfine high-entropy metal diboride powders. Scripta Mater 2019, 167: 110-114.
DOI Google Scholar
[15]
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.
DOI Google Scholar
[16]
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.
DOI Google Scholar
[17]
Y Xia, P Yang, Y Sun, et al. One-dimensional nanostructures: Synthesis, characterization, and applications. Adv Mater 2003, 15: 353-389.
DOI Google Scholar
[18]
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.
DOI Google Scholar
[19]
YG Yao, ZN Huang, PF Xie, et al. Carbothermal shock synthesis of high-entropy-alloy nanoparticles. Science 2018, 359: 1489-1494.
DOI Google Scholar
[20]
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.
DOI Google Scholar
[21]
R Djenadic, A Sarkar, O Clemens, et al. Multicomponent equiatomic rare earth oxides. Mater Res Lett 2017, 5: 102-109.
DOI Google Scholar
[22]
B Kharisov. A review for synthesis of nanoflowers. Recent Patents Nanotechnol 2008, 2: 190-200.
DOI Google Scholar
[23]
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.
DOI Google Scholar
[24]
WG Fahrenholtz, EJ Wuchina, WE Lee, et al. Ultra-high Temperature Ceramics: Materials for Extreme Environment Applications. John Wiley & Sons, Inc., 2014.
DOI
[25]
G Kaptay, SA Kuznetsov. Electrochemical synthesis of refractory borides from molten salts. Plasmas Ions 1999, 2: 45-56.
DOI Google Scholar
[26]
RJ Kirkpatrick. Crystal growth from the melt: A review. American Mineralogist 1975, 60: 798-814.
Google Scholar
[27]
AJ Ardell, V Ozolins. Trans-interface diffusion-controlled coarsening. Nat Mater 2005, 4: 309-316.
DOI Google Scholar
[28]
KA Jackson. The interface kinetics of crystal growth processes. Interface Sci 2002, 10: 159-169.
DOI Google Scholar
[29]
M Elwenspoek. Comment on the α-factor of Jackson for crystal growth from solution. J Cryst Growth 1986, 78: 353-356.
DOI Google Scholar
[30]
RS Wagner, WC Ellis. Vapor-liquid-solid mechanism of single crystal growth. Appl Phys Lett 1964, 4: 89-90.
DOI Google Scholar
[31]
Y Shiohara, A Endo. Crystal growth of bulk high-Tc superconducting oxide materials. Mater Sci Eng: R: Rep 1997, 19: 1-86.
DOI Google Scholar
[32]
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.
DOI Google Scholar
[33]
W Jo, DY Kim, NM Hwang. Effect of interface structure on the microstructural evolution of ceramics. J Am Ceram Soc 2006, 89: 2369-2380.
DOI Google Scholar
[34]
WZ Zhou. Reversed crystal growth: Implications for crystal engineering. Adv Mater 2010, 22: 3086-3092.
DOI Google Scholar
[35]
I Sunagawa. Crystals: Growth, Morphology, & Perfection. Cambridge University Press, 2007.
[36]
MI Vesselinov. Crystal Growth for Beginners: Fundamentals of Nucleation, Crystal Growth and Epitaxy. World Scientific, 2016.
[37]
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.
DOI Google Scholar
[38]
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.
DOI Google Scholar
Publication history
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Acknowledgements
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Publication history

Received: 26 February 2020
Accepted: 08 March 2020
Published: 05 June 2020
Issue date: June 2020

Copyright

© The Author(s) 2020

Acknowledgements

We acknowledge financial support from the National Key R&D Program of China (No. 2017YFB0703200), National Natural Science Foundation of China (Nos. 51802100 and 51972116), Young Elite Scientists Sponsorship Program by CAST (No. 2017QNRC001), and Guangdong Basic and Applied Basic Research Foundation (No. 2019A1515012145).

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