Laboratory thermal conductivity measurement of pyroxene powder under low temperature and atmospheric pressure conditions: Implication for the studies on lunar and Martian surface thermal environment

	Laboratory thermal conductivity measurement of pyroxene powder under low temperature and atmospheric pressure conditions: Implication for the studies on lunar and Martian surface thermal environment
Alternative Title	低温低压条件下辉石粉末的热导率实验分析对月球及火星表面热环境研究的指示
	Yu W(于雯); Li XY(李雄耀); Wang SJ(王世杰)
	2016
Source Publication	岩石学报
Volume	32 Issue:1 Pages:99-106
Abstract	Laboratory studies on thermal conductivities of particulate minerals under vacuum condition can provide essential parameters when determining thermal properties and thermal evolution on lunar and planet surface, interpreting microwave and thermal infrared data and designing lunar explorer. Using modified thermal conductivity measuring instrument (HOT DISK TPS 2500S), pyroxenes powder samples are measured for their thermal conductivities under various vacuum degree and temperature conditions. By doing this, we evaluate the effects of vacuum degree and temperature on thermal conductivity of pyroxene powder. The experimental results show, 1) thermal conductivity of pyroxene powder decrease with lower vacuum degree. There is an apparent change of heat conduction mechanism when vacuum degree is around 1000Pa. Under low vacuum degree condition, thermal conductivity changes slowly with atmospheric pressure; 2) Thermal conductivity of pyroxene powder increase with temperature, but in different ways between low and normal atmospheric pressure conditions. With the experimental data, quantitative relationships of thermal conductivity of pyroxene powder and vacuum degree/temperature are given under low atmospheric pressure conditions. Our results imply that vacuum degree and temperature play different roles in thermal conductivity studies on lunar and Martian surface. Thus this study provide a reference for thermal conductivity determination of thermal conductivity in future work.
Subject Area	月球与行星科学
Indexed By	其他
Language	中文
Document Type	期刊论文
Identifier	http://ir.gyig.ac.cn/handle/352002/6140
Collection	月球与行星科学研究中心_月球与行星科学研究中心_期刊论文
Recommended Citation GB/T 7714	Yu W,Li XY,Wang SJ. Laboratory thermal conductivity measurement of pyroxene powder under low temperature and atmospheric pressure conditions: Implication for the studies on lunar and Martian surface thermal environment[J]. 岩石学报,2016,32(1):99-106.
APA	于雯,李雄耀,&王世杰.(2016).Laboratory thermal conductivity measurement of pyroxene powder under low temperature and atmospheric pressure conditions: Implication for the studies on lunar and Martian surface thermal environment.岩石学报,32(1),99-106.
MLA	于雯,et al."Laboratory thermal conductivity measurement of pyroxene powder under low temperature and atmospheric pressure conditions: Implication for the studies on lunar and Martian surface thermal environment".岩石学报 32.1(2016):99-106.

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