Radial conduction effects in the pulse method of measuring thermal diffusivity
- 1 October 1972
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (10) , 4226-4228
- https://doi.org/10.1063/1.1660899
Abstract
This paper discusses the effects of radial conduction on thermal diffusivity measurements obtained by the pulse method. The solution to the mathematical problem of transient two‐dimensional conduction which follows an instantaneous disk source of energy at one surface of an infinite slab is used to determine the half‐time as a function of boundary heat losses. This value is then compared with the half‐time obtained when radial conduction is neglected. The magnitudes of the effects for various ratios of pulse radius to slab thickness are tabulated.This publication has 5 references indexed in Scilit:
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- Pulse Method of Measuring Thermal Diffusivity at High TemperaturesJournal of Applied Physics, 1963
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- Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal ConductivityJournal of Applied Physics, 1961