Accession Number : AD0648525

Title :   THE THERMODYNAMICS OF THE CALCIA/CALCIUM-OXYGEN VAPOR SYSTEM,

Corporate Author : RAND CORP SANTA MONICA CALIF

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

Report Date : JAN 1967

Pagination or Media Count : 36

Abstract : The purpose of the study is the thermodynamic investigation of calcia, CaO, 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) calcia. The gas phase of the heterogeneous chemical system, like the homogeneous gas phase, comprises 9 gaseous calcium-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 calcia. (Author)

Descriptors :   (*ABLATION, THERMODYNAMICS), (*CALCIUM OXIDES, THERMODYNAMICS), (*CALCIUM, THERMODYNAMICS), (*OXYGEN, THERMODYNAMICS), PHASE STUDIES, CHEMICAL EQUILIBRIUM, CERAMIC MATERIALS, VAPORS, ENTROPY, ENTHALPY, TABLES(DATA), DIAGRAMS, TEMPERATURE, PRESSURE, MOLECULAR WEIGHT, REENTRY VEHICLES

Subject Categories : Ceramics, Refractories and Glass
      Atomic and Molecular Physics and Spectroscopy
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE