Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Thermal Diffusivity Measurement for Metal Using Phase Curve of Photothermal Displacement

광열변위의 위상곡선을 이용한 금속재료의 열확산계수 측정

  • Published : 2001.01.01
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Abstract

As the technology has developed and new materials have been produced, it is important to measure the thermal diffusivity of material and to predict the heat transfer in the solid subject to thermal processes. This measurement can be done in a non-contact way using photothermal displacenent spectroscopy. In this study, photothermal displacement method was used to measure the thermal diffusivity quantitatively. The specimens used in this study were the pure materials. The Ar-ion laser was used as an energy source and the periodical deformation induced by this pump laser was detected by the He-Ne laser. The magnitude and the phase angle of deformation gradient were measured. The thermal diffusivity was obtained by analyzing the phase angle of deformation gradient. As the result, comparing with the literature value, the thermal diffusivities of materials measured were showed about 2% error.

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References

  1. Chen, Z. and Mandelis, A., 1992, 'Thermal Diffusivity Measurements of Ultrahigh Thermal Conductors with Use of Scanning Photothermal Rate-Window Spectrometry : Chemical - Vapor - Deposition Diamonds,' Phys. Rev. Vol. B46
  2. Fournier, D., Boccara, A. C., Skumanich, A. and Amer, N. M., 1986, 'Photothermal Investigation of Transport in Semiconductors: Theory and Experiment,' J. Appl. Phys. Vol. 59 https://doi.org/10.1063/1.336599
  3. Bertolotti, M., Liakhou, G., Voti, R. L., Sibilia, C. and Sparvieri, N., 1995, 'A Cryostatic Setup for The Low-Temperature Measurement of Thermal Diffusivity with The Photothermal Method,' Rev. Sci. Instrum. Vol. 66, No. 12
  4. Olmstead, M. A., Amer, N. M. and Kohn, S., 1983, 'Photothermal Displacement Spectroscopy : an Optical Probe for Solids and Surfaces,' J. Appl. phys(A), Vol. 32, pp. 141-154 https://doi.org/10.1007/BF00616610
  5. Bingcheng, L., Zhaoxin, Z. and Shunhua, H., 1991, 'Modulated Photothermal Deformation in Solids,' Appl. Phys. 24 https://doi.org/10.1088/0022-3727/24/12/010
  6. Balageas, D. L., Boscher, D. M., Deon, A. A. and Enguehard, H., 1991, 'Photoacoustic Microscopy by Photodeformation Applied to Thermal Diffusicity Deformation,' High Temperatures - High Pressure, Vol. 23, 517-528
  7. Bayazitoglu, Y. and Ozisik, M., 1988, Elements of Heat Transfer, McGraw Hill, New York
  8. Shackelford, J. F., 1994, CRC Material Science and Engineering Handbook, CRC Press