Non-thermal Effect of High-Voltage Nanosecond Pulses on Kimberlite Rock-Forming Minerals Processing
| Autor: | Igor Zh. Bunin, N. E. Anashkina, Elizaveta V. Koporulina, Valentine A. Chanturiya, Maria Ryazantseva |
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| Rok vydání: | 2017 |
| Předmět: |
0211 other engineering and technologies
Mineralogy 02 engineering and technology Dielectric Nanosecond Microstructure Indentation hardness 020501 mining & metallurgy 0205 materials engineering X-ray photoelectron spectroscopy Indentation Phase (matter) Microscopy Composite material Geology 021101 geological & geomatics engineering |
| Zdroj: | Springer Proceedings in Physics ISBN: 9783319560618 |
| Popis: | In the present paper, we attempted to substantiate the efficiency of non-thermal high-power (high-voltage) nanosecond electromagnetic pulses for the directional change of phase (chemical and functional) composition and technological properties of kimberlite rock-forming minerals (olivine, calcite and serpentine) investigated using a complex of physical and chemical methods (XPS, DRIFTS, analytical electron microscopy, atomic-force microscopy, microhardness measurement—Vickers indentation method, and the method of acid-base indicators adsorption). According to XPS, DRIFTS, SEM-EDX and microhardness testing data, the effect of high-voltage nanosecond pulses leads to damage the surface microstructure of dielectric minerals with the subsequent formation of traces of surface breakdowns and microcracks, softening of rock-forming minerals, and reducing their microhardness by 40–66% overall. |
| Databáze: | OpenAIRE |
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