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SENSITIVE METHOD FOR DETERMINING THERMAL CONDUCTIVITY OF PURE METALS AT LOW TEMPERATURES.

Author(s) : FONTEYN D., PITSI G.

Type of article: Article

Summary

MEASUREMENTS OF THE THERMAL CONDUCTIVITY OF PURE METAL SAMPLES AT LOW TEMPERATURES POSE SPECIAL PROBLEMS BECAUSE OF THE HIGH CONDUCTIVITY. A NEW SENSITIVE METHOD IS DESCRIBED. THIS TECHNIQUE CONSISTS OF USING A CALIBRATED GOLD-IRON/NIOBIUM-TITANIUM THERMOCOUPLE AS A DIFFERENTIAL THERMOMETER IN CONJUNCTION WITH A SQUID. SPECIAL ATTENTION IS PAID TO THE CALIBRATION OF THE PRIMARY THERMOMETER. A SENSITIVITY OF 1 MICROK IS REACHED FOR MEASURING TEMPERATURE DIFFERENCES.

Details

  • Original title: SENSITIVE METHOD FOR DETERMINING THERMAL CONDUCTIVITY OF PURE METALS AT LOW TEMPERATURES.
  • Record ID : 1990-1399
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 1
  • Publication date: 1989

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