通電加熱による固体熱物性値の精密測定法 : 第4報,熱膨張率および比熱の測定と精度の検討

概要

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The final goal of this study is to develop a multi-purpose measurement system, which can simultaneously obtain thermal conductivity, total hemispherical emittance, thermal diffusivity, thermal expansion, and specific heat, by a direct electrical heating method. In this report, the principle of the newly developed methods for measuring thermal expansion and specific heat are described. Rod samples of silver (purity 99.99%) and JIS SUS304 (austenitic stainless steel), which are coated with a black refractory-paint of 0.01 mm in thickness, are used in order to verify the applicability of these methods. It becomes clear that the coating film is useful for accurately measuring these thermophysical properties. Effect of the film thickness on the accuracy in obtaining the specific heat is revealed by theoretical analysis.
社団法人日本機械学会の論文
1988-08-25