標題: An analysis for measurement of thermal diffusivity components of anisotropic platelike samples by AC calorimetric method
作者: Sheu, LJ
Lin, JD
機械工程學系
Department of Mechanical Engineering
關鍵字: thermal diffusivity;ac calorimetric;two-dimensional;anisotropy;semi-transparent
公開日期: 1-Jul-2000
摘要: This work examines the effects of anisotropy and transparency on measurements of thermal diffusivity components with an ac calorimetric method associated with laser heating. Analytical results indicate that the region where the two-dimensional effect occurs increases with the decrease of the ratio of cross-plane to in-plane thermal diffusivity. The region also increases with the optical thickness of the sample. The linear relations, as indicated by a decay constant from which the cross-plane thermal diffusivity is deduced, are not obtained for media of both optically moderate and thin thickness, while at sufficiently large optical thickness, anisotropy and two-dimensional effects are found insignificant.
URI: http://dx.doi.org/10.1143/JJAP.39.L690
http://hdl.handle.net/11536/30447
ISSN: 0021-4922
DOI: 10.1143/JJAP.39.L690
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
Volume: 39
Issue: 7A
起始頁: L690
結束頁: L693
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