New Tungsten Borides, their Stability and Outstanding Mechanical Properties
发布时间：2021-01-23点击次数：
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影响因子：5.7
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DOI码：10.1021/acs.jpclett.8b01262
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发表刊物：Journal of Physical Chemistry Letters
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摘要：We predict new tungsten borides, some of which are promising hard materials that are expected to be stable in a wide range of conditions, according to the computed composition temperature phase diagram. New boron-rich compound WE, is predicted to be superhard, with a Vickers hardness of 45 GPa, to possess high fracture toughness of similar to 4 MPa.m(0.5), and to be thermodynamically stable in a wide range of temperatures at ambient pressure. Temperature dependences of the mechanical properties of the boron-richest WB3 and WBs phases were studied using quasiharmonic and anharmonic approximations. Our results suggest that WEs remains a high-performance material even at very high temperatures.
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备注：SCI Cited: 26!
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第一作者：Kvashnin, Alexander G.
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合写作者：Zakaryan, Hayk A.,赵昌明,段益峰
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论文类型：期刊论文
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学科门类：理学
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一级学科：物理学
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卷号：9
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期号：12
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页面范围：3470-3477
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是否译文：否
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发表时间：2018-06-21
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收录刊物：SCI
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发布期刊链接：https://pubs.acs.org/doi/10.1021/acs.jpclett.8b01262
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