Investigation of Structural and Magnetic Phase Behaviour of Nickel Oxide Nanoparticles under Shock Wave Recovery Experiment

In this current research article, nickel oxide (NiO) nanoparticles were synthesised by hydrothermal process. The stability of structural and magnetic properties of NiO nanoparticles has been examined by shock wave loading experiment. In the present experiment, authors employed the shock waves with Mach number 2.2, and different shock pulses such as 100 and 200 pulses were loaded on the test samples. The test sample's molecular and crystalline structure stabilities are scrutinized by FTIR and PXRD techniques. SEM and VSM techniques are utilized to understand the surface and magnetic behaviour of NiO nanoparticles. The obtained crystallographic structure, molecular structure and surface changes are not showing any significant changes, but in magnetic properties, the value of the saturated magnetization has gradually reduced by the impact of shock waves. The obtained results of NiO nanoparticles have stable crystalline properties against the impact of shock waves; hence, the test material is suggested to the aerospace and military including high-temperature and high-pressure operation conditions.