Origin of hardness in WB4 and its implications for ReB4, TaB4, MoB4, TcB4, and OsB4
Origin of hardness in WB4 and its implications for ReB4, TaB4, MoB4, TcB4, and OsB4
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WB4 中硬度的起源及其对 ReB4、TaB4、MoB4、TcB4 和 OsB4 的影响
DOI:
10.1063/1.2977760
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发表时间:
2008-09
影响因子:
4
通讯作者:
Zou, Guangtian
中科院分区:
文献类型:
--
作者:
Li, Yinwei;Wang, Mei;Cui, Tian;Ma, Yanming;Zou, Guangtian
First-principles calculations were performed on the superhard material, WB4 (Vicker hardness exceeding 46GPa), to reveal the origin of its high hardness. Our simulated lattice parameters, bulk modulus, and hardness are in excellent agreement with the experimental data. A three-dimensional B network with a peculiar B2 dimer along the z-axis and a xy planar honeycomb B sublattice is uncovered to be mainly responsible for the high hardness. We further predicted that five other transition metal B compounds (TMB4, TM=Re, Mo, Ta, Os, and Tc) within the WB4 structure are potential superhard materials.
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影响因子:
64.8
作者:
D. Tabor
通讯作者:
D. Tabor
DOI:
10.1038/scientificamerican01191918-40csupp
发表时间:
1936
期刊:
--
影响因子:
--
作者:
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影响因子:
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影响因子:
4
作者:
Zhang, Miao;Wang, Mei;Zou, Guangtian
通讯作者:
Zou, Guangtian
影响因子:
3.7
作者:
FAST, L;WILLS, JM;ERIKSSON, O
通讯作者:
ERIKSSON, O