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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 30 — Oct. 20, 2003
  • pp: 6199–6204

Liquid steel analysis with laser-induced breakdown spectrometry in the vacuum ultraviolet

Laszlo Peter, Volker Sturm, and Reinhard Noll  »View Author Affiliations


Applied Optics, Vol. 42, Issue 30, pp. 6199-6204 (2003)
http://dx.doi.org/10.1364/AO.42.006199


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Abstract

Laser-induced breakdown spectrometry (LIBS) with multiple pulse excitation has been applied for the multielemental analysis of liquid steel. The laser beam and the measuring radiation are guided inside a moveable lance to gain access to the melt surface from the top. Low-alloy steel grades were investigated with a focus on the light elements phosphorus, sulfur, and carbon by use of emission wavelengths in the vacuum ultraviolet. Calibration curves were determined for the elements carbon, phosphorus, sulfur, nickel, and chromium in steel melts of 100 kg. The estimated limits of detection for the light elements phosphorus, sulfur, and carbon are below 21 µg/g for direct analysis of liquid steel with LIBS. The results demonstrate the potential of the laser-based analysis to fulfill the requirements for a process integrated on-line analysis in the secondary metallurgy of steel works.

© 2003 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(300.0300) Spectroscopy : Spectroscopy

History
Original Manuscript: January 20, 2003
Revised Manuscript: May 28, 2003
Published: October 20, 2003

Citation
Laszlo Peter, Volker Sturm, and Reinhard Noll, "Liquid steel analysis with laser-induced breakdown spectrometry in the vacuum ultraviolet," Appl. Opt. 42, 6199-6204 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-30-6199

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