中国科学院重庆绿色智能技术研究院机构知识库

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	Vacuum sintered lunar regolith simulant: Pore-forming and thermal conductivity
	Song, Lei1,3; Xu, Jiao1; Fan, Shuqian1; Tang, Hong2; Li, Xiongyao2; Liu, Jianzhong2; Duan, Xuanming1
	2019-02-15
摘要	Lunar regolith molding technologies are receiving an increasing attention in lunar exploration program. Most studies are carried out in the air on earth, ignored the effects of high vacuum (similar to 10(-12) mbar) on the lunar surface. This paper presents the results of a study aimed at assessing the effect of vacuum on the sintering of low Ti basalt type lunar simulant CLRS-1. The results show that porous sample with density of 1.19 g cm(-3) can be obtained by sintering at 1100 degrees C under vacuum, which has much lower thermal conductivity (0.265 W m(-1) K-1) than concrete and other lunar resource derived structural materials. It could potentially be applied as the thermal insulation material for the Moon base construction. The pore-forming mechanism in vacuum was investigated. It was found that evaporation of the products of solid dissolved mineral crystals led to a great deal of weight loss and inhibited the densification during sintering.
关键词	Lunar regolith simulant Sintering Thermal conductivity Porosity Silicate
DOI	10.1016/j.ceramint.2018.11.023
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	45期号:3页码:3627-3633
收录类别	SCI
WOS记录号	WOS:000456225900089
语种	英语