Precision measurements of the thermal conductivity, electrical resistivity, and Seebeck coefficient from 80 to 400 K and their application to pure molybdenum
From thirteenth international conferencc on thermal conductivity; Lake Ozark, Missouri, USA (5 Nov 1973). A longitudinal heat flow technique for precise measurement of thermal conductivity, electrical resistivity, and Seebeck coefficient over the temperature range from 80 to 4OO deg K is described. The basis of the technique is the use of a calibrated platinum resistance thermometer to provide in-situ calibrations of specimen thermocouples. The total determinate errors at 273 deg K are plus or minus 0.23% for electrical resistivity, plus or minus 0.49% for thermal conductivity, and plus or minus 0.07 mu v/K for the Seebeck coefficient when Pt wire is used as the reference. Experlmental results on two high-puriiy molybdenum specimens with cross-sectional areas differing by a factor of four are presented to demonstrate the system precision and low level of indeterminate errors. (9 figures, 5 tables, 30 references) (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn. (USA)
- NSA Number:
- NSA-29-000963
- OSTI ID:
- 4435096
- Report Number(s):
- CONF-731106-1
- Resource Relation:
- Conference: 13. international conference on thermal conductivity, Lake Ozark, Missouri, USA, 5 Nov 1973; Other Information: Orig. Receipt Date: 30-JUN-74
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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