Tribological and wear-resistant behaviors of single-phase (Dy0.2Ho0.2Er0.2Tm0.2Lu0.2)B12 high-entropy ceramic

Zhang, Jiahua; Zheng, Xingwei; Liu, Ji-Xuan; Zhang, Guo-Jun; Liang, Yongcheng

doi:10.1016/j.jeurceramsoc.2024.01.051

Journal of the European Ceramic Society

2024

DOI: 10.1016/j.jeurceramsoc.2024.01.051

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Tribological and wear-resistant behaviors of single-phase (Dy0.2Ho0.2Er0.2Tm0.2Lu0.2)B12 high-entropy ceramic

Jiahua Zhang,

Xingwei Zheng,

Ji-Xuan Liu

et al.

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Cited by 8 publications

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Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Zhang,

Li,

Zhang

et al. 2024

Angewandte Chemie

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High‐entropy materials hold immense promise for energy storage, owing to their varied compositions and unforeseen physicochemical properties, yet, which poses challenges in synthesis due to tendentious phase separation and extended sintering durations. Herein, an ultra‐rapid strategy based on spark plasma sintering (SPS) techniques is proposed to synthesize high‐entropy MAX phases within 15 minutes, including a new phase of (Ti0.2V0.2Cr0.2Nb0.2Mo0.2)4AlC3 and several phases of 413‐type TiVNbMoAlC3, TiVCrMoAlC3 and (Ti0.2V0.2Cr0.2Nb0.2Ta0.2)4AlC3, achieving utmost purity level up to 99.54%. Under high temperature, the overfeed of Al with low melt point (~660°C) can foster a liquid environment, which remits the immiscibility among starting materials and benefits to diffusion dynamics to some extents. Theoretical calculations are employed to elucidate the thermodynamic preponderance of high‐entropy MAX phases in the intricate multi‐element systems. Meanwhile, the varied stacking modes among MX slabs in high‐entropy MAX phases and the distinct topological transformations to their derivative MXenes can be observed directly at the atomic level. Moreover, four high‐entropy MXenes as electrode materials were investigated for rechargeable batteries. Among them, TiVNbMoC3 electrode demonstrates superior lithium‐ion storage capabilities with 725 mAh g−1 after 1000 cycles at 1 A g‐1, triggering the edification to the application of high‐entropy MXenes for energy domain.

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Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Zhang,

Li,

Zhang

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Zhang,

Li,

Zhang

et al. 2024

Angew Chem Int Ed

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Numerical simulation of heat transfer during spark plasma sintering of porous SiC

Lei,

Yu,

Gucci

et al. 2024

Ceramics International

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Tribological and wear-resistant behaviors of single-phase (Dy0.2Ho0.2Er0.2Tm0.2Lu0.2)B12 high-entropy ceramic

Cited by 8 publications

References 36 publications

Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Ultra‐rapid Synthesis of High‐entropy MAX Phases and Their Derivative MXenes for Battery Electrodes

Numerical simulation of heat transfer during spark plasma sintering of porous SiC

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