Abstract
We have developed an apparatus to measure thermal effusivity distribution in solid materials with a high spatial resolution better than 10μm by the thermoreflectance technique and the periodic heating method. A metal film sputtered on the surface of a sample is periodically heated by a modulated laser beam. The temperature response is measured by using another thin laser beam as a thermoreflectance signal. The thermal effusivity of the sample is derived from the phase lag of the temperature response from the periodic heating. Measurements of a functionally graded material and a fiber composite material are presented as application examples of this thermal effusivity distribution measurement technique.
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Dates
Type | When |
---|---|
Created | 19 years, 9 months ago (Nov. 16, 2005, 6:17 p.m.) |
Deposited | 2 years, 2 months ago (July 3, 2023, 9:09 p.m.) |
Indexed | 6 days, 6 hours ago (Aug. 29, 2025, 6:11 a.m.) |
Issued | 19 years, 10 months ago (Nov. 1, 2005) |
Published | 19 years, 10 months ago (Nov. 1, 2005) |
Published Online | 19 years, 9 months ago (Nov. 17, 2005) |
Published Print | 19 years, 10 months ago (Nov. 1, 2005) |
@article{Hatori_2005, title={Thermoreflectance technique to measure thermal effusivity distribution with high spatial resolution}, volume={76}, ISSN={1089-7623}, url={http://dx.doi.org/10.1063/1.2130333}, DOI={10.1063/1.2130333}, number={11}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Hatori, Kimihito and Taketoshi, Naoyuki and Baba, Tetsuya and Ohta, Hiromichi}, year={2005}, month=nov }