Temperature-dependent dielectric properties of the Korean lunar simulant and ilmenite: Lunar microwave processing potential

• DOI: 10.1016/j.conbuildmat.2024.136599
• Publication Date: 2024-05-13T17:14:26Z
• Authors: Young-Jae Kim; Hyunwoo Jin; Jangguen Lee; Byung-Hyun Ryu; Hyu-Soung Shin
• Keywords: Ilmenite

There is increasing interest in the potential application of microwave sintering technology construction infrastructure on Moon. This study aimed to characterize dielectric properties situ lunar materials; this information critical for an understanding interaction these materials with and technology. Dielectric including real imaginary permittivity, loss tangent, penetration depth, electrical conductivity Korean Lunar Simulant (KLS-1) ilmenite (an abundant mineral) were investigated at frequencies as a function temperature. X-ray dispersion (XRD) analyses confirmed that lattice expansion minerals temperature was consistent trend permittivity. The tangent 2–36 times higher than KLS-1, depending temperature, indicating has greater ability absorb energy, converting it heat. Ilmenite demonstrated rapid heating 1000°C within few minutes exposure 1 kW (2.45 GHz) irradiation. provides important relevant development future applications.