火星风化层烧结的综合优化：在矿物学复制模拟物中裁剪微观结构和性能

IF 3.4 2区物理与天体物理 Q1 ENGINEERING, AEROSPACE

Acta Astronautica Pub Date : 2025-08-23 DOI:10.1016/j.actaastro.2025.08.038

Yutong Deng, Feng Li, Siqi Zhou, Xinyang Tao, Qi Zhou, Qinxin Feng

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引用次数: 0

摘要

利用原位资源利用（ISRU）在火星上实现可持续建设，关键取决于了解火星土壤粒度分布和矿物组成的内在异质性。本研究探讨了矿物学复制的BH-Mars-S模拟物的真空烧结动力学，揭示了粒度特征与热处理参数（1175-1250°C）之间复杂的相互作用。通过对细粒（d50≈12.7 μm）和粗粒（d50≈127 μm）两种不同颗粒体系的对比分析，表明优化颗粒尺寸可使致密化效率提高102%，抗压强度提高300%。详细的显微结构研究表明，致密化主要通过斜长石和辉石的选择性熔融液相机制发生，而橄榄石和铬铁矿在整个过程中保持结构稳定。特别值得注意的是对烧结条件的精确控制，这也允许调节导热性，为火星基础设施提供额外的设计灵活性。该研究阐明了一种精细的矿物特定烧结机制，为优化未来火星探测的风化层基建筑材料的机械和热性能提供了一个全面的框架。

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Integrated optimization of Martian regolith Sintering: Tailoring microstructure and performance in a mineralogically replicated simulant

Leveraging in-situ resource utilization (ISRU) to enable sustainable construction on Mars critically depends on understanding the inherent heterogeneity in particle size distribution and mineral composition of Martian soil. This study explores the vacuum sintering dynamics for mineralogically replicated BH-Mars-S simulant, unraveling the intricate interplay between granulometric characteristics and thermal processing parameters (1175–1250°C). Through comparative analysis of two distinct particle systems - fine (d₅₀ ≈ 12.7 μm) versus coarse (d₅₀ ≈ 127 μm) fractions - a remarkable 102 % enhancement in densification efficiency and 300 % enhancement in compressive strength was demonstrated through particle size optimization. Detailed microstructural investigations reveal that densification predominantly occurs via liquid-phase mechanisms facilitated by selective melting of plagioclase and pyroxene, while olivine and chromite maintain structural stability throughout the process. Particularly noteworthy is the precise control of sintering conditions, which also allows for modulation of thermal conductivity, providing additional design flexibility for Martian infrastructure. The study articulates a refined mineral-specific sintering mechanism, offering a comprehensive framework for optimizing the mechanical and thermal performance of regolith-based building materials for future Mars exploration.

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来源期刊

Acta Astronautica 工程技术-工程：宇航

CiteScore

7.20

自引率

22.90%

发文量

599

审稿时长

53 days

期刊介绍： Acta Astronautica is sponsored by the International Academy of Astronautics. Content is based on original contributions in all fields of basic, engineering, life and social space sciences and of space technology related to: The peaceful scientific exploration of space, Its exploitation for human welfare and progress, Conception, design, development and operation of space-borne and Earth-based systems, In addition to regular issues, the journal publishes selected proceedings of the annual International Astronautical Congress (IAC), transactions of the IAA and special issues on topics of current interest, such as microgravity, space station technology, geostationary orbits, and space economics. Other subject areas include satellite technology, space transportation and communications, space energy, power and propulsion, astrodynamics, extraterrestrial intelligence and Earth observations.