Laser Ultrasonic Generation at the Surface of a Liquid Metal
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
The noncontacting nature of laser-based ultrasonic measurement has made it attractive in many applications. While most of the applications thus far involve solid samples, molten metals encountered in some stages of metal processing appear well suited to this technique. Possible applications for liquid metals include locating and characterizing the liquid/solid interface; characterizing a surface layer, contaminant, or alloying constituent; and measuring the temperature of the surface or of the bulk. The aim of this work was to characterize laser generation of ultrasound in liquid metals to facilitate the development of techniques for these applications.