Accession Number : AD0259044

Title :   CHEMICAL THERMODYNAMICS OF MATERIALS AT HIGH TEMPERATURES

Corporate Author : ILLINOIS INST OF TECH CHICAGO

Personal Author(s) : EDWARDS,RUSSELL K. ; WAHLBECK,PHILLIP G.

Report Date : 30 JUN 1961

Pagination or Media Count : 1

Abstract : The activities of Ga and In are to be determined as a function of the composition of the 2-component system, Ga-In. An investigation of the Sc-H and Y-H systems is in progress. The present effort is aimed at the establishment of the thermodynamic properties of the systems and construction of the phase diagrams. For this purpose, equilibrium H pressure-temperature-composition data are obtained. The behaviors of the Sc-H and Y-H systems are similar, with the equilibrium pressures in the Sc-H system being higher than those of the Y-H system. Experimental work was completed on the volume of mixing of noninteracting spheres of various radius ratios. Glass beads, 126 to 222 microns in diameter were used.

Descriptors :   *ELECTRODES, *GALLIUM, *HYDROGEN, *INDIUM, *LIQUID METALS, *LIQUIDS, *METALS, *MIXTURES, *PHASE STUDIES, *SCANDIUM, *THERMODYNAMICS, *YTTRIUM, ATOMS, GLASS, HIGH TEMPERATURE, HYDRIDES, MATERIALS, MEASUREMENT, PRESSURE, SOLIDS, SOLUBILITY, SOLUTIONS(MIXTURES), SPHERES, TEMPERATURE, TEST EQUIPMENT, VOLUME

Distribution Statement : APPROVED FOR PUBLIC RELEASE