Apparatus for Measuring the Thermal Conductivity of Metals in Vacuum at High Temperatures

Autor:	Marvin Moss
Rok vydání:	1955
Předmět:	Zirconium Temperature gradient Thermal conductivity measurement Thermal conductivity Materials science chemistry Instrumentation Zirconium alloy Heat transfer chemistry.chemical_element Composite material Conductivity
Zdroj:	Review of Scientific Instruments. 26:276-280
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1771276
Popis:	The method of determining the thermal conductivity of a metal with this apparatus consists, essentially, of measuring both the axial temperature gradient and the transfer of heat under steady state conditions in a thermally shielded cylindrical rod of the metal which is heated at one end and cooled at the other. The objective was to make precise determinations of conductivity without reliance on previously established data for standard metals. In certain respects the apparatus embodies simplification of, and improvement over, other equipment of this type. A calorimetric measurement of heat flow constitutes a distinct advantage of the instrument both as to its simplicity and the fact that it supplies the data necessary for a direct rather than a comparative evaluation of thermal conductivity. Other features include vacuum operation and special instrumentation to facilitate the measurement of temperature differences. Tests have been made on nickel, zirconium, and a zirconium‐3‐percent‐tin alloy from room te...
Databáze:	OpenAIRE
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