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一方向熱流定常比較法を用いた熱伝導率測定における接触熱抵抗の評価

Evaluation of contact thermal resistance in thermal conductivity measurement using unidirectional heat flow steady state comparison method

小野 達貴*; 早川 虹雪*; 小田 将人*; 石井 宏幸*; 本田 充紀   ; 村口 正和*

Ono, Tatsumi*; Hayakawa, Kosetsu*; Oda, Masato*; Ishii, Hiroyuki*; Honda, Mitsunori; Muraguchi, Masakazu*

一方向定常熱流比較法を用いた熱伝導率の測定における各界面の接触熱抵抗を要素に分解し、実測を行うことで抽出した。これにより、試験ロッド間の接触抵抗による測定結果の誤差を補正するため指針を得た。今後は、接触熱抵抗を補正した、測定システムの精度向上をさらに進めていく。

The contact thermal resistance of each interface in the measurement of thermal conductivity using the one-way steady-state heat flow comparison method was decomposed into elements and extracted by performing actual measurements. This method provides a guideline for correcting errors in measurement results due to contact resistance between test rods. In the future, we will further improve the accuracy of the measurement system by correcting for contact thermal resistance.

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