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

通过热显微镜对界面热障进行可视化和定量分析

• 批准号: 23656433
• 负责人: TANAKA Katsushi
• 金额: $ 2.66万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656433/
• 关键词: 熱拡散率; サーモリフレクタンス法; 熱電材料; 粒界熱抵抗

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.

配备激光的点或面照射来加热样本并检测样本温度。该方法适用于研究试样热性能的局部变化。在本研究中，配备线聚焦激光束来加热样品以抑制热波的消失并限制传播方向。这使我们不仅可以更精确地测量热扩散率，还可以测量热性能的各向异性。目前，晶界热阻还无法定量测量，但测量技术正在不断积累。