同济大学学报（自然科学版）2024，Vol.52Issue(8)：1180-1187,8.DOI:10.11908/j.issn.0253-374x.24230
面向月面原位资源利用的嫦娥五号月壤样品颗粒形态特征研究
Morphological Characteristics Study of Chang'e-5 Lunar Regolith Particles for In-situ Resource Utilization on Moon
摘要
Abstract
The morphological characteristics of lunar regolith particles have a significant impact on in-situ excavation,transportation,3D printing,and other processes on the Moon.The samples obtained independently by China's Chang'e-5 mission can provide key parameter information for the construction of the lunar research station.This paper focuses on the morphological characteristics of lunar regolith particles that are of concern in the process of in-situ resource utilization on the Moon.Optical microscopy was used to obtain images of the Chang'e-5 lunar regolith particle samples approved by Tongji University,a set of image processing and particle recognition methods were constructed,and a directional difference index was proposed to characterize the roughness of the particle surface.The automatic extraction of particle edges and the calculation of their size and morphological indicators were achieved.The results show that the particle size range of the studied Chang'e-5 samples is 4.36～792.30 µm,with an average aspect ratio of 0.66,an average circularity of 0.806,and an average directional difference index of 0.111.Small particles make up a large proportion,with particles below 10 µm accounting for 44.19%.The directional difference index of the particles is approximately normally distributed,indicating that a large number of particles have similar surface roughness,with a small number of particles having smoother or rougher surfaces.There is a negative correlation between the size and aspect ratio,circularity of small particles,and little correlation with surface roughness.There is no correlation between the size and morphology of large particles.The study also found that the circularity of the particles in the Chang'e-5 samples is smaller and the morphology is more irregular in comparison with the Apollo 11 and Apollo 15 samples.关键词
嫦娥五号样品/月壤颗粒/粒度分析/形态特征Key words
Chang'e-5 samples/lunar regolith particles/particle sizing analysis/morphological characteristics分类
地质学引用本文复制引用
李佳,王超,李志远,谢欢,蒋明镜,晏雄锋,许雄,冯永玖,童小华..面向月面原位资源利用的嫦娥五号月壤样品颗粒形态特征研究[J].同济大学学报（自然科学版）,2024,52(8):1180-1187,8.基金项目
国家自然科学基金(42221002,42171363) （42221002,42171363）
