Abstract

The present work is focused on stability of shock wave-exposed copper oxide (CuO) nanoparticles. CuO nanoparticles are synthesized by chemical reduction method and exposed to 100 shock pulses having Mach number 2.4. The table top semiautomatic pressure-driven shock tube is used to generate shock waves for the present experiment. The influence of shock waves on the treated and untreated CuO nanoparticles are explored and characterized by a variety of properties like structural, molecular and morphological details observed using powder XRD, FTIR and SEM, respectively. The powder XRD profile confirmed that there are no lattice defects or any deformation except negligible changes in grain size. SEM images established that the shock wave-loaded CuO nanoparticles have good structural and morphological stability. The obtained results showed that CuO nanoparticles can be used in aerospace, nuclear reactors and high-pressure applications which undergo extreme conditions. The details are presented intensely in the following sections.

Graphic abstract

中文翻译：

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冲击波对航空航天用氧化铜纳米颗粒结构和形态特性的影响

摘要

目前的工作集中在冲击波暴露的氧化铜（CuO）纳米粒子的稳定性。通过化学还原方法合成CuO纳米颗粒，并使其暴露于100马赫数为2.4的冲击脉冲。本实验使用台式半自动压力驱动激波管产生激波。探索了冲击波对处理过的和未处理的CuO纳米颗粒的影响，并通过各种特性（例如分别使用粉末XRD，FTIR和SEM观察到的结构，分子和形态学细节）来表征。粉末XRD图谱证实，除了晶粒尺寸的变化可忽略不计之外，没有晶格缺陷或任何变形。SEM图像表明，加载冲击波的CuO纳米颗粒具有良好的结构和形态稳定性。获得的结果表明，CuO纳米颗粒可用于经受极端条件的航空航天，核反应堆和高压应用中。以下各节将详细介绍这些细节。

图形摘要