Laser-induced breakdown spectroscopy (LIBS) on geological materials: Relative hardness estimation
| Autor: | Bakang Moses Mothudi, A. H. Galmed, Malik Maaza, M. A. Harith, S. N. Panya panya |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Metallurgy 02 engineering and technology Excitation temperature Plasma 021001 nanoscience & nanotechnology 01 natural sciences Hardness Elemental analysis 0103 physical sciences Laser-induced breakdown spectroscopy Geological materials 0210 nano-technology Rock mass classification Spectroscopy |
| Zdroj: | Materials Today: Proceedings. 36:600-603 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.05.766 |
| Popis: | Rock’s hardness is one of the most investigated and important parameters which describes the strength properties of a rock mass. Laser-induced breakdown spectroscopy (LIBS) is a developing spectrochemical elemental analysis technique that is recently investigated to be used for metal hardness measurements. In this work, LIBS has been used to study the surface hardness of selected geological samples. The relationship between sample rebound test hardness, sample density and the LIBS plasma excitation temperature (Te) was investigated. It was observed that there is a linear relationship between the hardness and the density of the samples. Also, it was observed that there is a linear relation between Te and the hardness of the samples. The estimation of the surface hardness of the geological samples by measuring the Te shows the feasibility of LIBS as an easy and reliable method for geological samples’ application. |
| Databáze: | OpenAIRE |
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