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Effects of crystal orientation and diameter on the mechanical properties of single-crystal MgAl2O4 spinel nanowires

机译:晶体取向与直径对单晶MgAl2O4尖晶石纳米线力学性能的影响

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摘要

The influence of crystal orientation (including [100], [110], and [111]) and diameter (ranging from 2 to 10 nm) on the tensile deformation behavior and mechanical properties of single-crystal spinel (MgAl2O4) nanowires is investigated using molecular dynamics simulations. Varied deformation characteristics and fracture modes are revealed when the tensile loading is applied in the differently oriented nanowires. Mechanical properties including elastic modulus and ultimate tensile strength of spinel nanowires are distinctly dependent on size in each crystal orientation. This study advances the understanding of spinel nanomechanics which can help the development of high-strength spinel materials and their potential nanodevice applications.
机译:使用晶体取向(包括[100],[110]和[111])的影响(包括[100],[110]和[111])和直径(范围为2至10nm),采用单晶尖晶石(MgAl2O4)纳米线的拉伸变形行为和机械性能 分子动力学模拟。 当在不同取向的纳米线中施加拉伸载荷时,揭示了变形特征和裂缝模式。 包括弹性模量和尖晶石纳米线的极限拉伸强度的机械性能明显取决于每个晶体取向的尺寸。 本研究推进了对尖晶石纳米力学的理解,这有助于开发高强度尖晶石材料及其潜在的纳米专用应用。

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