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Low-temperature thermal diffusivity and conductivity measurements under an identical experimental setup.

[In Japanese. / En japonais.]

Author(s) : FUJISHIRO H., NAITO T., IKEBE M., NOTO K.

Type of article: Article

Summary

A thermal diffusivity measuring system employing a closed cycle helium refrigerator was developed, which also enabled the thermal conductivity measurement under an identical experimental setup. The diffusivity was measured by a discretional heating method and the conductivity was measured by a steady-state heat flow method. The errors and the accuracy in measurements were evaluated by measuring the diffusivities of an austenitic stainless steel standard sample, a Pyrex glass and a high purity copper between 12 to 200 K. The diffusivity ranging from 0,001 to 2 cm2/second could be determined with an uncertainty of 3%. The results agreed with the reported values within 10%.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1994-2709
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 28 - n. 9
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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