Skvortsova Nina N, Stepakhin Vladimir D, Sorokin Andrey A, Malakhov Dmitry V, Gusein-Zade Namik G, Akhmadullina Nailya S, Borzosekov Valentin D, Voronova Elena V, Shishilov Oleg N
Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.
Institute for Laser and Plasma Technologies, National Research Nuclear University MEPhI, 115409 Moscow, Russia.
Materials (Basel). 2021 Oct 28;14(21):6472. doi: 10.3390/ma14216472.
In this article, results are presented of experiments on depositing charged particles, which imitate the levitating dust on the Moon, on stainless steel. Ensembles of particles are created above the surface of laboratory regolith whose composition and particle size distribution imitate the dust that covers the Moon's surface. Under the action of the gyrotron radiation on regolith, non-linear physical-chemical processes develop (breakdown, chain plasmachemical reactions, and particle scattering by the Coulomb mechanism), which lead to the appearance of a levitating cloud of particles. The simulation experiment is based on the similarity between the processes that develop in the laboratory experiments with regolith and the processes that occur on the Moon during its bombardment by micrometeorites. The effect of the levitating cloud on stainless steel plates is studied and it is shown that regolith particles in the shape of spheroids of different sizes are deposited on the surface of the plates. The dimensions of the deposited particles and the density of their placement depend on the quality of treatment of the plate surface. It is shown that the laboratory-produced dusty plasma can be used in simulation experiments to study the modification of surfaces of different materials for space technology.
本文介绍了将模拟月球上悬浮尘埃的带电粒子沉积在不锈钢上的实验结果。在实验室风化层表面上方形成粒子集合体，其成分和粒径分布模拟覆盖月球表面的尘埃。在回旋管辐射作用于风化层时，会发生非线性物理化学过程（击穿、链式等离子体化学反应以及库仑机制导致的粒子散射），这些过程会导致出现悬浮的粒子云。该模拟实验基于在实验室对风化层进行的实验中所发生的过程与月球在受到微陨石轰击时所发生的过程之间的相似性。研究了悬浮云对不锈钢板的影响，结果表明不同尺寸的球状风化层颗粒沉积在板表面。沉积粒子的尺寸及其放置密度取决于板表面的处理质量。结果表明，实验室产生的尘埃等离子体可用于模拟实验，以研究空间技术中不同材料表面的改性。
