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Author(s):
T. Shikama, C. Namba, M. Kosuda, Y. Maeda
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Title:
Development of High Time-Resolution Laser Flash Equipment for Thermal Diffusivity Measurements Usting Miniature-Size Specimens
Date of publication:
Jan. 1994
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Key words:
experimental techniques, thermophysical properties
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Abstract:
For measurements of thermal diffusivity of miniature-size specimens heavily irradiated by neutrons, a new Q-switched laser-flash instrument was developed. In the present instrument the time resolution was improved to 0.1 ms by using a laser-pulse width of 25 ns. The realization of high time-resolution made it possible to measure the thermal diffusivity of thin specimens. It is expected that copper of 0.7mm thick, and SUS 304 of 01.mm could be used for the measurements. In case of ATJ graphite, 0.5mm thick specimen could be used for the reliable measurement in the temperature range of 300-1300K.
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