Visualization and quantitative analysis of interfacial thermal barrier by a thermal microscope

• Project/Area Number: 23656433
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Kobe University
• Principal Investigator: TANAKA Katsushi 神戸大学, 大学院・工学研究科, 教授 (30236575)
• Project Period (FY): 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
• Keywords: 熱拡散率 / サーモリフレクタンス法 / 熱電材料 / 粒界熱抵抗

Research Abstract

A point or areal irradiation of a laser light is equipped to heat a specimen and to detect a specimen temperature. This method is suitable for investigating a local variation of thermal properties of the specimen. In the present study, a line focused laser beam is equipped for heating a specimen to suppress an extinction of heat wave and to restrict a direction of propagation. This allows us to measure not only the thermal diffusivity more preciously but also the anisotropy of the thermal properties. At present, the thermal resistance of the grain boundary is not able to measure quantitatively, however, know-hows of the measurement is accumulating.

Research Products

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  • URL: http://mm4.scitec.kobe-u.ac.jp/