Two natural zeolite-bearing rocks (one containing clinoptilolite and the other chabazite, phillipsite, and analcime) were Fe-exchanged and thermally treated in a reducing atmosphere at 750 degrees C for 2 h. Two nanocomposites, formed by the dispersion of Fe nanoparticles in a ceramic matrix, were obtained. The prepared lunar dust simulants also contain Na+, K+, Ca2+, and Mg2+ and other mineral phases originally present in the starting materials. The samples were fully characterized by different techniques such as atomic absorption spectrometry, X-ray powder diffraction, followed by Rietveld analysis, transmission electron microscopy, N-2 adsorption/desorption analysis at 77 K, measurements of grain size distribution, magnetic property measurements, broad-band dielectric spectroscopy, and DC conductivity measurements. The results of this characterization showed that the obtained metal-ceramic nanocomposites exhibit a chemical and mineralogical composition and electrical and magnetic properties similar to real moon dust and, thus, appear valid moon dust simulants.

New Insights in the Production of Simulated Moon Agglutinates: the Use of Natural Zeolite-Bearing Rocks / Manzoli, M; Tammaro, O; Marocco, A; Bonelli, B; Barrera, G; Tiberto, P; Allia, P; Mateo-Velez, Jc; Roggero, A; Dantras, E; Arletti, R; Pansini, M; Esposito, S. - In: ACS EARTH AND SPACE CHEMISTRY. - ISSN 2472-3452. - 5:6(2021), pp. 1631-1646. [10.1021/acsearthspacechem.1c00118]

New Insights in the Production of Simulated Moon Agglutinates: the Use of Natural Zeolite-Bearing Rocks

Barrera, G;Tiberto, P;Allia, P;
2021

Abstract

Two natural zeolite-bearing rocks (one containing clinoptilolite and the other chabazite, phillipsite, and analcime) were Fe-exchanged and thermally treated in a reducing atmosphere at 750 degrees C for 2 h. Two nanocomposites, formed by the dispersion of Fe nanoparticles in a ceramic matrix, were obtained. The prepared lunar dust simulants also contain Na+, K+, Ca2+, and Mg2+ and other mineral phases originally present in the starting materials. The samples were fully characterized by different techniques such as atomic absorption spectrometry, X-ray powder diffraction, followed by Rietveld analysis, transmission electron microscopy, N-2 adsorption/desorption analysis at 77 K, measurements of grain size distribution, magnetic property measurements, broad-band dielectric spectroscopy, and DC conductivity measurements. The results of this characterization showed that the obtained metal-ceramic nanocomposites exhibit a chemical and mineralogical composition and electrical and magnetic properties similar to real moon dust and, thus, appear valid moon dust simulants.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/72962
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