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A Study of the Properties of Samples from a Lunar Regolith Simulant Produced by Selective Laser Meltingстатья
- Авторы: Kim A.A., Lysenko A.M., Tomilina T.M.
- Журнал: Cosmic Research (English translation of Kosimicheskie Issledovaniya)
- Том: 62
- Номер: 5
- Год издания: 2024
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 510
- Последняя страница: 518
- DOI: 10.1134/S0010952524600793
- Аннотация: The article presents the results of an experimental study of the strength properties of samplesobtained by laser melting from powder compositions of a lunar regolith simulant based on gabbro-diabase.The powder compositions have been obtained by sieving with a fraction range of 50–100 and 100–140 μmfrom a simulant with a grain-size distribution similar to that of natural regolith. Their properties have beenstudied on experimental samples with characteristic dimensions of 7.5 × 5 × 6 mm3: apparent density, hard-ness, and compressive strength in different melting modes. Dependences of these properties on the energydensity were obtained in the range from 12 to 25 J/mm3. The measured Vickers hardness of samples fusedfrom a composition of 50–100 μm had a range of 691–830 HV, and samples from a composition of 100–140μm had a wider range: 330–830 HV. The maximum values of compressive strength for samples from bothcompositions reached 17–20 MPa with median values of 12 and 17 MPa for the first and second composi-tions, respectively. These values are quite consistent with those that could be obtained by the process of in situresource utilization.
- Добавил в систему: Ким Андрей Александрович