2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/17/2017 | 10:55 AM - 11:20 AM | Measurement of thermal diffusivity at high temperature by laser flash method | 1
Measurement of thermal diffusivity at high temperature by laser flash method
Thermal diffusivity of materials is of interest in nuclear applications at temperatures in excess of 2000°C. Commercial laser flash apparatus typically do not reach these elevated temperatures nor are they easily adapted to a glove-box environment. An experimental system has been designed for measurement of thermal diffusivity at high temperatures based on the laser flash method. A continuous laser is used to heat up the disc sample from its front surface, and then the other pulse laser is applied to induce the temperature response at the rear surface which determines thermal diffusivity of the sample. Thermal diffusivity of Tungsten and Zirconium were tested in a wide range of temperature up to 2200°C. The results below 1500°C are in good agreement with the commercial laser flash apparatus.
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Presenters/Authors
zhuorui song
(), Utah state university, songzhuorui@hotmail.com;
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