Evaluation of the Heat Leakage in the Thermal Diffusivity Measurement of Molten Metals by a Laser Flash Method

被引：0
作者：
T. Nishi
H. Ohta
H. Shibata
Y. Waseda
机构：
[1] Tohoku University,Graduate School, Department of Materials Processing
[2] Ibaraki University,Department of Materials Science
[3] Tohoku University,Institute of Multidisciplinary Research for Advanced Materials
来源：
International Journal of Thermophysics | 2003年 / 24卷
关键词：
heat loss; laser flash method; molten nickel; numerical analysis; thermal diffusivity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Evaluation of the radiative and conductive heat loss from a molten metal sample to the cell has been made in order to obtain accurate thermal diffusivities of molten metals at high temperature with a laser flash method. The results suggest that thermal diffusivity values of molten nickel can be determined in the temperature range from 1728 to 1928 K with an uncertainty of ±3% in comparison with case considering only the effect of radiative heat loss. The usefulness of a cell for a laser flash method has been confirmed by applying simulated results to evaluate the heat leakage in the thermal diffusivity measurement of molten metals.
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页码：1735 / 1751
页数：16
相关论文
共 15 条
  • [1] Schriempf J. T.(1972)undefined High. Temp. High. Press. 4 411-undefined
  • [2] Monaghan B. J.(2001)undefined ISIJ Int. 41 1524-undefined
  • [3] Quested P. N.(1969)undefined Bull. Res. Inst. Miner. Dressing Metall., Tohoku University 25 67-undefined
  • [4] Saitoh T.(1981)undefined Netsu-Sokutei 8 62-undefined
  • [5] Amatatsu M.(1961)undefined J. Appl. Phys. 32 1679-undefined
  • [6] Watanabe S.(1986)undefined High. Temp. Mat. Proc. 7 179-undefined
  • [7] Takahashi Y.(undefined)undefined undefined undefined undefined-undefined
  • [8] Azumi T.(undefined)undefined undefined undefined undefined-undefined
  • [9] Sugano M.(undefined)undefined undefined undefined undefined-undefined
  • [10] Parker W. J.(undefined)undefined undefined undefined undefined-undefined
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