Review of Thermodynamic Properties of the Cr‐N System
Source abstract
Abstract
Existing thermodynamic data for the Cr‐N system were analyzed. High‐temperature heat contents measured by Sato were reevaluated, and the heat capacity of Cr 2 N was determined to be 15.05+6.58×10 −3 T (°K) and that of CrN 11.10+ 1.58×10 3 T . Using these heat capacities and an estimated ΔS° 298, f of 20×1 cal/°K‐g atom N for the formation of the nitrides, second‐ and third‐law calculations for all available vapor‐pressure data were made. The two calculations agreed very well for the data of Mills. The heats of formation of Cr 2 N and CrN are ‐31.8×1.0 and ‐28.4×1.5 kcal/mol, respectively. A partial phase diagram of the Cr‐N system is presented.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Energetic Materials and Combustion · Intermetallics and Advanced Alloy Properties
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References (20)
Show source-provided references
1. 10.1016/0022-5088(70)90124-410.1016/0022-5088(70)90124-4 ↗
2. W. H.Smith “Thermodynamic and Phase Relations in the Systems Chromium‐Nitrogen and Iron‐Chromium‐Nitrogen”;Ph.D. Thesis Rensselaer Polytechnic Institute Troy NY 1958.
3. Pressure/Temperature/Composition Relations in the Cr‐N Terminal Solid Solution
4. Nitriding of Chromium in N2‐H2 Gas Mixtures at Elevated Temperatures
5. Action of Gases on Metals: II
6. 10.1246/nikkashi1921.58.10_98110.1246/nikkashi1921.58.10_981 ↗
7. Determination of Solubility of Nitrogen in Chromium
8. T.Mills “Study of the Cr‐Cr2N‐CrN Equilibria ” Aust. Aeronaut. Res. Lab. Met. Rep. No. 68 1967;7pp.
9. Heat of Formation and Specific Heat of Chromium Nitride
10. Caplan D. · 1957
11. 10.1016/0022-5088(71)90042-710.1016/0022-5088(71)90042-7 ↗
12. 10.1149/1.242870010.1149/1.2428700 ↗
13. Solubility of Nitrogen in Liquid Fe‐Cr and Fe‐V Alloys
14. 10.1002/zaac.1931203011010.1002/zaac.19312030110 ↗
15. Effect of Nitrogen on Some Chromium and Iron‐Chromium Alloys
16. C. E.WicksandF. E.Block “Thermodynamic Properties of 65 Elements—Their Oxides Halides Carbides and Nitrides ” U.S. Bur. Mines Bull. No. 605 1963;146pp.
17. Contributions to the Data on Theoretical Metallurgy: XIII
18. Stull D. R. · 1956
19. 1962
20. A. D.Mah “Heats of Combustion and Formation of Molybdenum Subnitride and Chromium Subnitride ” U.S. Bur. Mines Rep. Invest. No. 5529 1960;7pp.