Accession Number : AD0622034

Title :   HIGH-TEMPERATURE CALORIMETRY OF THE IRONVANADIUM ALLOY SYSTEM.

Descriptive Note : Masters' thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Rapson,Robert Lee

Report Date : JUN 1965

Pagination or Media Count : 56

Abstract : High-temperature heat content data were obtained for the iron-vanadium alloy system by means of a diphenyl ether drop-type calorimeter. Data were compiled for pure iron, pure vanadium, and three representative alloys of iron and vanadium, over the temperature range from 600 to 1500 K. The results for the pure metals showed good agreement with published values. The alloy data followed smooth curves and exhibited behavior consistent with the thermal anomalies in the alloy system. Deviations from Kopp's Law, of the experimentally determined alloy heat capacities, showed a trend toward positive values with increasing temperature. The heats of formation for the alloys exhibited a change in sign from negative to positive at high temperatures. (Author)

Descriptors :   (*IRON, ENTHALPY), (*VANADIUM, ENTHALPY), (*IRON ALLOYS, ENTHALPY), (*VANADIUM ALLOYS, ENTHALPY), HIGH TEMPERATURE, THERMODYNAMICS, CALORIMETERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE