Simultaneous measurements of optical and thermal properties of solids at laser heating up to 2500 degrees C

Olga G. Tsarkova; Serge V. Garnov; Vitali I. Konov; E. N. Lubnin; Friedrich Dausinger

doi:10.1117/12.484547

29 July 2002 Simultaneous measurements of optical and thermal properties of solids at laser heating up to 2500 degrees C

Olga G. Tsarkova, Serge V. Garnov, Vitali I. Konov, E. N. Lubnin, Friedrich Dausinger

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Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484547
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation

Abstract

Detailed studies of optical and thermal properties of solids are necessary for fundamental science as well as for optimization of technologies of laser processing of materials. The essential temperature dependences of the physical parameters of solids strongly influence the laser-matter interaction processes. The advantage of our experimental technique is the possibility to perform simultaneous measurements of reflectivity, absorptivity, transmissivity, heat capacity, heat conductivity, temperature conductivity of solids in a broad range of investigated temperatures (up to 2500°C) with high temporal resolution (0.5 ms). Besides, the developed method allows to estimate values of heat of phase transitions and to reveal the influence of ambient atmosphere on the physical properties of samples undergoing noticeable structural and chemical modifications during laser heating. A possibility to record both the optical and thermal properties and temperature dependences of metals, ceramics, CVD (chemical vapor deposition) diamond films within a single experiment (for a few seconds) allows to apply this technique for studying and selecting novel materials with unknown properties.

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Olga G. Tsarkova, Serge V. Garnov, Vitali I. Konov, E. N. Lubnin, and Friedrich Dausinger "Simultaneous measurements of optical and thermal properties of solids at laser heating up to 2500 degrees C", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484547

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KEYWORDS

Ceramics

Temperature metrology

Thermography

Solids

Aluminum

Optical testing

Reflectivity

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