真空烧结 HUST-1 月球碎屑模拟物的物理、机械和热性能

IF 11.7 1区工程技术 Q1 MINING & MINERAL PROCESSING

International Journal of Mining Science and Technology Pub Date : 2024-09-01 DOI:10.1016/j.ijmst.2024.06.004

Wenbin Han , Yan Zhou , Lixiong Cai , Cheng Zhou , Lieyun Ding

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引用次数: 0

摘要

在月球上建立基地是近年来人类月球探测的新目标之一。烧结月球渣岩是月球基地最具潜力的建筑材料之一。烧结月球渣岩的物理、机械和热性能是月球基地结构设计和分析许多关键机械和热问题的重要性能指标。在这项研究中，HUST-1 月球雷灰岩模拟物（HLRS）的烧结温度分别为 1030、1040、1050、1060、1070 和 1080 ℃。研究了烧结温度对抗压强度的影响，并确定了最佳真空烧结温度的确切值为 1040 至 1060 ℃。然后，对不同温度下真空烧结 HLRS 的微观结构和材料成分进行了表征。结果发现，在 1030-1080 ℃ 的温度范围内，烧结温度对矿物成分没有明显影响。此外，还研究了不同温度下真空烧结 HLRS 的热容量、热导率和热膨胀系数（CTE）。在 -75 至 145 ℃ 的温度范围内，烧结样品的比热容随测试温度的升高而增大。此外，烧结样品的热导率与密度成正比。最后，选择 1040 和 1050 ℃ 这两个温度对机械性能进行了更详细的研究。结果表明，烧结样品的抗压强度远高于抗拉强度。这项研究揭示了烧结温度对真空烧结 HLRS 的物理、机械和热性能的影响，这些材料参数将为未来月球基地的建设提供支持。

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Physical, mechanical and thermal properties of vacuum sintered HUST-1 lunar regolith simulant

Establishing a base on the Moon is one of the new goals of human lunar exploration in recent years. Sintered lunar regolith is one of the most potential building materials for lunar bases. The physical, mechanical and thermal properties of sintered lunar regolith are vital performance indices for the structural design of a lunar base and analysis of many critical mechanical and thermal issues. In this study, the HUST-1 lunar regolith simulant (HLRS) was sintered at 1030, 1040, 1050, 1060, 1070, and 1080 °C. The effect of sintering temperature on the compressive strength was investigated, and the exact value of the optimum vacuum sintering temperature was determined between 1040 and 1060 °C. Then, the microstructure and material composition of vacuum sintered HLRS at different temperatures were characterized. It was found that the sintering temperature has no significant effect on the mineral composition in the temperature range of 1030–1080 °C. Besides, the heat capacity, thermal conductivity, and coefficient of thermal expansion (CTE) of vacuum sintered HLRS at different temperatures were investigated. Specific heat capacity of sintered samples increases with the increase of test temperature within the temperature range from −75 to 145 °C. Besides, the thermal conductivity of the sintered sample is proportional to density. Finally, the two temperatures of 1040 and 1050 °C were selected for a more detailed study of mechanical properties. The results showed that compressive strength of sintered sample is much higher than tensile strength. This study reveals the effects of sintering temperature on the physical, mechanical and thermal properties of vacuum sintered HLRS, and these material parameters will provide support for the construction of future lunar bases.

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来源期刊

International Journal of Mining Science and Technology Earth and Planetary Sciences-Geotechnical Engineering and Engineering Geology

CiteScore

19.10

自引率

11.90%

发文量

2541

审稿时长

44 days

期刊介绍： The International Journal of Mining Science and Technology, founded in 1990 as the Journal of China University of Mining and Technology, is a monthly English-language journal. It publishes original research papers and high-quality reviews that explore the latest advancements in theories, methodologies, and applications within the realm of mining sciences and technologies. The journal serves as an international exchange forum for readers and authors worldwide involved in mining sciences and technologies. All papers undergo a peer-review process and meticulous editing by specialists and authorities, with the entire submission-to-publication process conducted electronically.