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Title: Precision measurements of the thermal conductivity, electrical resistivity, and Seebeck coefficient from 80 to 400 K and their application to pure molybdenum

Conference ·
OSTI ID:4435096

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