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Scripta Materialia
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Scripta Materialia
Article . 2020 . Peer-reviewed
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High-entropy monoborides: Towards superhard materials

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2020 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 189, pages 101-105 (issn: 1359-6462, Copyright policy )
Authors: Mingde Qin; Qizhang Yan; Haoren Wang; Chongze Hu; Kenneth S. Vecchio; Jian Luo;

doi: 10.1016/j.scriptamat.2020.08.018

High-entropy monoborides: Towards superhard materials

Abstract

Abstract Single-phase high-entropy monoborides (HEMBs) of the CrB prototype structure have been synthesized for the first time. Reactive spark plasma sintering of ball milled mixtures of elemental precursor powders produced bulk (V0.2Cr0.2Nb0.2Mo0.2Ta0.2)B, (V0.2Cr0.2Nb0.2Mo0.2W0.2)B, and (V0.2Cr0.2Nb0.2Ta0.2W0.2)B HEMB specimens of ~98.3–99.5% relative densities. Vickers hardness was measured to be ~22–26 GPa at an indentation load of 9.8 N and ~32–37 GPa at 0.98 N. In particular, the load-dependent hardness of (V0.2Cr0.2Nb0.2Ta0.2W0.2)B is higher than those of ternary (Ta0.5W0.5)B (already considered as superhard) and hardest reported high-entropy metal diborides, and on a par with the classical superhard boride WB4.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
84
Top 1%
Top 10%
Top 1%
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