- Conference date: 17–21 May 2009
- Location: Cairo (Egypt)
Laser Induced Breakdown Spectroscopy (LIBS) is a well known spectrochemical elemental analysis technique. In our investigations of the LIBS spectra it has been found that there is a remarkable correlation between the ionic to atomic spectral lines emission ratio and the surface hardness of solid targets. This phenomenon is related to the repulsive force of the laser induced shockwaves. The present study revealed a confirmation of the above mentioned correlation and the interpretation of the phenomenon in view of the laser induced shockwaves velocity has been also proved experimentally. The relation between the target surface hardness and the ionic to atomic spectral lines intensity ratio of Zr in specially prepared steel alloys treated thermally to have different surface hardness, has been estimated via LIBS. The obtained LIBS spectra have been used to obtain for certain spectral lines of minor elements in the investigated alloys. The obtained linear relation between the steel samples surface hardness (measured mechanically) and the spectral lines ratio confirm the same effect. The above investigations open the door for LIBS to be exploited not only as a spectrochemical analytical technique but also as an easy way to measure the surface hardness of solid targets.
- Laser induced breakdown spectroscopy
- Atomic spectra
- Shock waves
- Solid surfaces
Daniel Baumann, Mark G. Jackson, Peter Adshead, Alexandre Amblard, Amjad Ashoorioon, Nicola Bartolo, Rachel Bean, Maria Beltrán, Francesco de Bernardis, Simeon Bird, Xingang Chen, Daniel J. H. Chung, Loris Colombo, Asantha Cooray, Paolo Creminelli, Scott Dodelson, Joanna Dunkley, Cora Dvorkin, Richard Easther, Fabio Finelli, Raphael Flauger, Mark P. Hertzberg, Katherine Jones‐Smith, Shamit Kachru, Kenji Kadota, Justin Khoury, William H. Kinney, Eiichiro Komatsu, Lawrence M. Krauss, Julien Lesgourgues, Andrew Liddle, Michele Liguori, Eugene Lim, Andrei Linde, Sabino Matarrese, Harsh Mathur, Liam McAllister, Alessandro Melchiorri, Alberto Nicolis, Luca Pagano, Hiranya V. Peiris, Marco Peloso, Levon Pogosian, Elena Pierpaoli, Antonio Riotto, Uroš Seljak, Leonardo Senatore, Sarah Shandera, Eva Silverstein, Tristan Smith, Pascal Vaudrevange, Licia Verde, Ben Wandelt, David Wands, Scott Watson, Mark Wyman, Amit Yadav, Wessel Valkenburg and Matias Zaldarriaga
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