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Updated: Jul 12, 2026

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Characterization of Thermal Transport in One-dimensional Solid Materials
Published on: January 26, 2014
Thermal diffusivity and conductivity of lunar material
Summary
Apollo 11 lunar samples exhibit lower thermal properties than terrestrial rocks. Type C samples show less temperature dependence than Type A lunar samples.
Area of Science:
- Geophysics
- Planetary Science
- Materials Science
Background:
- Understanding lunar regolith's thermal properties is crucial for surface exploration and infrastructure development.
- Previous studies have indicated variations in lunar material characteristics.
Purpose of the Study:
- To compare the thermal diffusivity and conductivity of Apollo 11 lunar samples (Type A and Type C).
- To assess the temperature dependence of these thermal properties.
- To establish a baseline for lunar material thermal behavior.
Main Methods:
- Measurement of thermal diffusivity using a transient method.
- Measurement of thermal conductivity derived from diffusivity and specific heat data.
- Analysis of sample variations based on Apollo 11 mission return types (A and C).
Main Results:
- Type C lunar samples demonstrate lower thermal diffusivity and conductivity compared to Type A samples.
- The thermal properties of Type C samples are less sensitive to temperature fluctuations than Type A.
- Both lunar sample types exhibit lower thermal properties than typical terrestrial rocks.
Conclusions:
- Apollo 11 lunar samples possess distinct thermal characteristics influenced by their type.
- Lunar regolith's thermal behavior differs significantly from terrestrial analogues, impacting thermal management strategies.
- Further research into diverse lunar sample types is warranted to refine thermal models.
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