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Abstract

This paper presents a new experimental technique enabling thermophysical measurements to be carried out at very high temperatures in a very simple and small pressurized vessel in which the sample is heated by a continuous wave laser, and subsequently subjected to a short temperature pulse. The adopted method is essentially an extension of the laser flash technique, widely used for thermal diffusivity measurements, whereby, in addition, the heat capacity and, hence, the thermal conductivity, are simultaneously evaluated from the pulse analysis. Results are presented for the thermal diffusivity and heat capacity of graphite, zirconia, and uranium dioxide up to temperatures above 3000K.

Additional information

Authors: RONCHI C, ITU KARLSRUHE, KARLSRUHE (DE);HEINZ W, ITU KARLSRUHE, KARLSRUHE (DE);MUSELLA M, ITU KARLSRUHE, KARLSRUHE (DE);SELFSLAG R, ITU KARLSRUHE, KARLSRUHE (DE)
Bibliographic Reference: Paper presented: 13th Symposium on Thermophysical Properties, Boulder (US), 22-27th June (1999)
Availability: Available from Public Relations and Publications Unit, Ispra (IT)
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