Radiation loss in the flash method for thermal diffusivity
- 1 February 1975
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 46 (2), 714-719
- https://doi.org/10.1063/1.321635
Abstract
The boundary radiation heat loss method is investigated for the flash method in measuring thermal diffusivity. Present correction procedures for heat loss are tested experimentally using AXM−5Q (POCO) graphite. In addition, a new method for radiation loss correction is presented based solely on the heating portion of the temperature rise curve. Using the new method, corrections of 35% can be made within a ±3% error. The thermal diffusivity results calculated using the adiabatic expression for various portions of the fractional rise curve and for various heat losses are also presented.Keywords
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