太阳能聚光模具烧结模拟月壤试验研究  

Experimental Study on Solar Die Sintering of Lunar Regolith Simulant

作　　者：李渊 文世峰[1,3] 李晓波 韩文彬[1,2] 周燕 周诚 LI Yuan;WEN Shifeng;LI Xiaobo;HAN Wenbin;ZHOU Yan;ZHOU Cheng(National Center of Technology Innovation for Digital Construction,Wuhan 430074,China;School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]国家数字建造技术创新中心,武汉430074 [2]华中科技大学土木与水利工程学院,武汉430074 [3]华中科技大学材料科学与工程学院,武汉430074 [4]华中科技大学能源与动力工程学院,武汉430074

出　　处：《空间科学与试验学报》2024年第3期50-57,共8页Journal of Space Science and Experiment

基　　金：国家重点研发计划项目(2023YFB3711300,2021YFF0500300);中国工程院战略咨询项目(2023XZ-90,2023-JB-09-10)。

摘　　要：太阳能原位烧结成型月壤可有效实现月球的原位资源利用,有望成为月球基地建造最具潜力的工艺之一。本文搭建了以HUST-1模拟月壤为原料的太阳能聚光模具烧结原理试验系统,采用COMSOL计算了太阳能聚光模具烧结过程的表面辐射和固体传热,并开展了大气和真空环境下烧结的初步试验。仿真结果显示,当太阳辐照度为1368 W/m^(2)时,模具内温度可达1100℃,满足月壤烧结成型的动力学要求。试验结果表明,烧结温度是太阳能聚光模具烧结月壤成型的关键工艺参数,当模具内温度达到800℃以上,模拟月壤开始固态烧结成型。受限于地球大气中悬浮颗粒对太阳光散射以及高温烧结阶段散热快导致的保温难、成型的块体强度较低等问题,需进一步优化试验系统,探究太阳能聚光烧结模拟月壤的致密化机理。Solar in-situ sintering of lunar soil can effectively realize the in-situ utilization of lunar resources,and is expected to be one of the most potential processes for lunar base construction.In this study,the test system of solar concentrating die sintering based on HUST-1 simulated lunar soil was set up.The surface radiation and solid heat transfer in the process of solar concentrating sintering were calculated by COMSOL,and the initial test of sintering under atmospheric and vacuum environment was carried out.The simulation results show that when the solar irradiance is 1368 W/m2,the temperature in the mold can reach 1100℃,which meets the dynamic requirements of lunar soil sintering.The experimental results show that the sintering temperature is the key process parameter of lunar soil sintering in solar concentrator mold.When the temperature in the mold reaches 800℃,the simulated lunar soil solid-state sintering starts.Due to the difficulty of heat preservation caused by the scattering of sunlight by suspended particles in the Earth's atmosphere and the rapid heat dissipation in the sintering stage at high temperature,the formed blocks have low strength.Therefore,it is necessary to further optimize the test system to explore the densification mechanism of simulated lunar soil by solar concentrating sintering.

关 键 词：月球基地 模拟月壤 太阳能模具烧结 固化 

分 类 号：P184[天文地球—天文学]