2011 Fiscal Year Final Research Report

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

Research Project

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
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.

(1 results)