Accession Number : AD0636808

Title :   THE THERMODYNAMICS OF THE ALUMINA/ALUMINUM-OXYGEN VAPOR SYSTEM.

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : KRIEGER, F. J.

Report Date : JUN 1966

Pagination or Media Count : 35

Abstract : The purpose of this study is the thermodynamic investigation of alumina, A1203, over a range of temperatures up to 6000K and pressures up to 1000 atmospheres. Two sets of equilibrium composition equations are used--one representing a pure gas phase, the other a heterogeneous system of gas and condensed (i.e., solid or liquid) alumina. The gas phase of the heterogeneous chemical system, like the homogeneous gas phase, comprises 12 gaseous aluminum-oxygen species. The results of the computational program are presented in both tabular and graphic form. The latter is a conventional Mollier diagram in which specific enthalpy is plotted against specific entropy, with cross plots of temperature, pressure, and molecular weight or moles of condensed alumina. (Author)

Descriptors :   (*ABLATION, ALUMINUM COMPOUNDS), (*ALUMINUM COMPOUNDS, OXIDES), (*ALUMINUM, THERMODYNAMICS), (*OXYGEN, THERMODYNAMICS), PHASE STUDIES, THERMOCHEMISTRY, CHEMICAL EQUILIBRIUM, TEMPERATURE, PRESSURE, ENTHALPY, ENTROPY, DENSITY

Subject Categories : Physical Chemistry
      Ceramics, Refractories and Glass
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE