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

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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

Author(s):
Krieger, F. J.
Author Organization(s):
RAND CORP SANTA MONICA CALIF
Pagination:
0036

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RM-5248-PR
Contract/Grant Number(s):
F44620-67-C-0045
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*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
Field(s)/Group(s):
Ceramics, Refractories and Glass, Atomic and Molecular Physics and Spectroscopy, Thermodynamics
Keyword(s):
ABLATIVE MATERIALS
Report Date:
1966 Jan 01