Generation of Ammonia during Wear Processes in Adhesive Wear of Titanium
We report a short note of preliminary and new experimental results that the generation of ammonia (i.e. nitrogen fixation) can occur on tribologically activated surfaces formed as a result of the frictional sliding of pure titanium when this is performed in a mixed gaseous environment of dinitrogen...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Japanese Society of Tribologists
2015
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/af902e88a26243fca8fca27723bb3201 |
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| Sumario: | We report a short note of preliminary and new experimental results that the generation of ammonia (i.e. nitrogen fixation) can occur on tribologically activated surfaces formed as a result of the frictional sliding of pure titanium when this is performed in a mixed gaseous environment of dinitrogen and dihydrogen at a total pressure of 6 × 10-4 Pa. Gaseous ammonia, synthesized at the tribologically activated surface on the actual area of contact and/or on fine debris of wear elements with a size of the order of ten or a few tens of nanometers, was detected by analyzing the partial pressures for each species between amu 1 and amu 50 present in the environmental gases during the sliding friction: this analysis was performed using a quadrupole mass spectrometer (QMS). This process, however, depends on the mode of wear, i.e. it is expected to occur only under mild conditions of wear. |
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