| 摘要: |
| 基于月球资源的原位建造技术是未来大规模月面建造的重要支撑。3D打印成形技术在月面原位建造中具有自动化、智能化的优势。本文基于自主搭建的模拟月壤挤出式桌面级3D打印机，制备了不同配比的模拟月壤3D打印成形体，并开展成形体热-力学性能测试试验，揭示了胶凝材料占比对试样力学和热学性能的影响机制。研究结果表明：胶凝材料占比增加时，成形体单轴抗压强度增大，表现出明显脆性，同时导热系数提高，隔热性能下降。本论文的研究可为未来月面建造技术路径的建立提供参考。 |
| 关键词: 模拟月壤 3D打印 抗压强度 导热系数 |
| 基金项目:民用航天技术预先研究项目（D010302）。 |
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| Study on the Influence of the Proportion of Cementitious Materials on the Thermal-mechanical Properties of 3D Printed Simulated Lunar Soil Samples |
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Wang Zhaohan1, Li Zhengwei*1, Zuo Yang2, He Chengdan3, Wang Jin3, Wang Yongjun3
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1. State Key Laboratory of Intelligent Deep Metal Mining and Equipment, Northeastern University, Shenyang 110819;2. Beijing Spacecraft Manufacturing Co., Ltd., Beijing 100094;3. National Key Laboratory on
Vacuum Technology and Physics, Lanzhou Institute of Physics, Lanzhou 730000
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| Abstract: |
| In-situ construction technology based on lunar resources is an important support for large-scale construction on the lunar surface in the future. 3D printing technology offers advantages of automation and intelligence for in-situ lunar surface construction. In this paper, based on a self-built extrusion-type desktop 3D printer using simulated lunar soil, forming bodies with different proportions of simulated lunar soil were prepared, and thermo-mechanical performance tests were carried out to reveal the influence mechanism of the proportion of cementing materials on the mechanical and thermal properties of the samples. As the proportion of cementing materials increases, the uniaxial compressive strength of the formed body increases, showing obvious brittleness, while the thermal conductivity increases and the thermal insulation performance decreases. This study can provide a reference for the establishment of future lunar surface construction technology paths. |
| Key words: lunar regolith simulants 3D printing compressive strength thermal conductivity |
