Thermal characterization of glasses prepared from simulated compositions of lunar soil JSC-1A

• Published in: Journal of non-crystalline solids Vol. 359; pp. 56 - 59
• Main Authors: Pinheiro, A.S., da Costa, Z.M., Bell, M.J.V., Anjos, V., Reis, S.T., Ray, C.S.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 01-01-2013; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Glasses; JSC-1A; Lunar simulant; Photoacoustics; Physics; Thermal diffusivity; Thermal properties of amorphous solids and glasses : heat capacity, thermal expansion; Thermal properties of condensed matter; Glasses; Thermal diffusivity; Lunar simulant; JSC-1A; Photoacoustics; Open cell porosity; Glass; Heat capacity; Silicates; Thermal relaxation; Lunar rocks; Specific heat; Thermal shock; Thermal conductivity; Thermodynamic properties; Lunar materials; Photoacoustic effect
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/j.jnoncrysol.2012.09.027

The thermal conductivity (K), thermal diffusivity (α), and specific heat capacity (ρc) for a glass prepared from JSC-1A lunar soil simulant were measured using a combination of open photoacoustic cell (OPC) and thermal relaxation techniques. The values of K and α for the JSC-1A glass were (20±3) mW/cmK and (14±2) cm2/s, respectively, and are somewhat larger than those of the comparable silicate glasses. The specific heat capacity (ρc) for this glass was (1.44±0.07) J/cm3K, which is a little smaller than the comparable silicate glasses. Materials with high values of K and α rapidly adjust their temperature with that of their surrounding atmosphere, making them more resistant to mechanical failure occurring due to thermal shock.
► Thermal characterization of JSC-1A lunar simulant ► First report of thermal diffusivity and thermal conductivity of JSC-1A ► JSC-1A presents a high value for thermal conductivity.