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Thermal diffusivity measurement of CVD diamond film using a step heating technique |
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| Authors: | Y. Li R. E. Taylor A. Nabi |
| Affiliation: | (1) Thermophysical Properties Research Laboratory, School of Mechanical Engineering, Purdue University, 47907 West Lafayette, Indiana, USA;(2) Present address: Department of Agricultural Engineering, Purdue University, 47907 West Lafayette, Indiana, USA;(3) Aeronautical Research Center, Technion-Israel Institute of Technology, 32000 Haifa, Israel |
| Abstract: | A step heating method for the measurement of the thermal diffusivity of diamond thin film is described. The step heating method is a transient heat flow method. Transient temperature profiles are generated in a strip-shaped sample by heating one end of the sample while the other end is clamped to a heat sink. Three thermocouples are used along the heat path. The results are compared with the literature values over the temperature range from –190 to 50°C. |
| Keywords: | diamond film low temperatures step heating technique thermal conductivity thermal diffusivity |
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