Development of ac Calorimetric Method for Thermal Diffusivity Measurement IV : Films with Low Thermal Diffusivity and Very Thin Films
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概要
- 論文の詳細を見る
In the ac calorimetric thermal diffusivity measurement of a thin film with low thermal diffusivity and a very thin film, it happens that the atmosphere surrounding the films significantly affects thermal diffusivity measured when the contribution of propagation of ac temperature waves in the atmosphere is not neglected. In fact, the measurement in a polymer film or in a very thin film should be carried out under vacuum, in which ac temperature waves no longer propagate. The experimental tests were made for polypropylene films and a borosilicate glass plate. The measurement under vacuum is not always required for every kind of film. The condition which is required for the measurement in the air is discussed. In addition, various problems which occur in the measurement of thin films with low thermal diffusivity and very thin films are considered.
- 社団法人応用物理学会の論文
- 1991-06-15
著者
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Hatta Ichiro
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Gu Yuqin
A Research Fellow Of The Japan Society For The Promotion Of Science
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GU Yuqin
A Research Fellow of Japan Society for the Promotion of Science
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