论文标题
高注射单寄生虫：朝向超智材料
High-Entropy Monoborides: Towards Superhard Materials
论文作者
论文摘要
CRB原型结构的单相高渗透单相（HEMB）已首次合成。元素前体粉的球铣削混合物的反应性火花血浆烧结产生了大量（V0.2CR0.2NB0.2MO0.2TA0.2）B，（V0.2CR0.2CR0.2NB0.2MO0.2MO0.2MO0.2W0.2） 〜98.3-99.5％的相对密度。在凹痕负荷下为9.8 N和〜32-37 GPA的vickers硬度为〜22-26 GPA，尤其是0.98 N.，尤其是n。，载荷依赖性硬度（v0.2cr0.2cr0.2nb0.2ta0.2ta0.2w0.2）报告了b的b高于ternary（ta0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5w0.5） Diborides，并与经典的超级硼Wb4相提并论。
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.
