论文标题
SC-ZR-NB-TA-RH-PD高渗透合金超导体的弹性特性
Elastic properties of a Sc-Zr-Nb-Ta-Rh-Pd high-entropy alloy superconductor
论文作者
论文摘要
我们报告了一项关于六种高渗透合金超导体（SCZRNBTA）$ _ {0.685} $ [RHPD] $ _ {0.315} $的弹性特性的综合研究。派生的弹性常数为散装模量$ k = 132.7 $ gpa，Young's Modulus $ e = 121.0 $ GPA，剪切模量$ G = 44.9 $ GPA和Poisson的比例$ν$ = 0.348的室温。年轻的和剪切模量为$ \ sim 10 \％$ $ $比NBTI超导体中的$ \％$大，$ t_c $，而延展性是可比性的。此外，在低温温度下，机械性能进一步增强。我们的工作证实了高渗透合金超导体的优势机械性能，并提出了应用前景。
We report a comprehensive study on the elastic properties of a hexanary high-entropy alloy superconductor (ScZrNbTa)$_{0.685}$[RhPd]$_{0.315}$ at room and cryogenic temperatures, by Resonant Ultrasound Spectroscopy experiments. The derived elastic constants are bulk modulus $K=132.7$ GPa, Young's modulus $E=121.0$ GPa, shear modulus $G=44.9$ GPa, and Poisson's ratio $ν$=0.348 for room temperature. The Young's and shear moduli are $\sim 10\%$ larger than those in NbTi superconductor with similar $T_c$, while the ductility is comparable. Moreover, the mechanical performance is further enhanced at cryogenic temperature. Our work confirms the advantageous mechanical properties of high-entropy alloy superconductors and suggests the application prospects.
