Activity-composition relations in MnCr 2O 4-CoCr 2O 4 solid solutions and stabilities of MnCr 2O 4 and CoCr 2O 4 at 1300°C

Journal of the American Ceramic Society

Volumn 88, Issue 9, 2005, Pages 2578-2585

  Koc, N ^a   Timucin, M ^a,b  

^a MIDDLE EAST TECHNICAL UNIVERSITY   (Turkey)

^b AMERICAN CERAMIC SOCIETY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GAS EQUILIBRIUM; OXIDE COMPONENTS; OXYGEN PARTIAL PRESSURE; SPINEL SOLUTIONS;

CERAMIC MATERIALS; CHROMIUM COMPOUNDS; MANGANESE COMPOUNDS; PARTIAL PRESSURE; PHASE EQUILIBRIA; POSITIVE IONS; STOICHIOMETRY;

SOLID SOLUTIONS;

EID: 27644547075     PISSN: 00027820     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1551-2916.2005.00489.x     Document Type: Article

References (25)

1. E. Üstündaǧ, R. Subramanian, R. Dieckmann, and S. L. Sass, "In-Situ Formation of Metal-Ceramic Composites and Ductile Phase Toughened Ceramics by Partial Reduction Reactions;" pp. 39-49 in Proceedings of the 1993 Conference on Processing, Fabrication and Applications of Advanced Composites Long Beach, CA, 9-11 August 1993, Edited by K. Upadhya. ASM International, Metals Park, OH.
2. E. Aukrust and A. Muan, "Activities of Components in Oxide Solid Solutions: The Systems CoO-MgO, CoO-MnO, and CoO-"FeO" at 1200°C," Trans. AIME, 227 [6] 1378-80 (1963).
3. S. Seetheraman and K. P. Abraham, "Activity Measurements in CoO-MnO Solid Solutions," Scripta Metall., 3 [12] 911-6 (1969).
4. 2," J. Am. Ceram. Soc., 50 [5] 230-5 (1967).
5. C. R. A. Catlow. B. E. F. Fende, and P. J. Hampson, "Thermodynamics of MnO+CoO and MnO+NiO Solid Solutions," J. Chem. Soc. Faraday Trans., 73 [7] 911-25 (1977).
6. G. Rog, "Determination of Thermodynamic Functions of Mixing for Solid Solutions of FeO-MnO and CoO-MnO by the Method of Measurement of the Electromotive Force of Solid Cells," Zesz. Nauk. Akad. Gorn-Hutn. Cracow, 665 [35] 45-54 (1978).
7. H. Paulsson. "Activities of CoO and Cluster Formation in (Co.Mn)O Solid Solutions at 900-1450 K by Solid Stale EMF Measurements," Scand. J. Met., 11 [6] 276-80 (1982).
8. 4 Spinel Solid Solutions at 1100°C," J. Mater. Sci., 12 [3] 481-8 (1977).
9. C. Wagner. Thermodvnamics of Alloys; pp. 108-15. Addison-Wesley Publishing Co., Reading, MA, 1952.
10. x.-Containing Systems," J. Am. Ceram. Soc., 81 [4] 935-8 (1998).
11. A. Muan and E. F. Osborne, "Three-Component Systems;" pp. 48-102 in Phase Equilibria among Oxides in Steelmaking, Edited by A. Muan and E. F. Osborne. Addison-Wesley Publishing Company Inc., Reading, MA, 1965.
12. L. B. Pankratz, J. M. Stuve, and N. A. Gökcen, "Thermodynamic Data for Mineral Technology," Bull. 677. U.S., Bur. Mines (1984).
13. 4 at 1300 and 1400°C," J. Am. Ceram. Soc., 75 [6] 1399-406 (1992).
14. J. D. Dunitz and L. E. Orgel, "Electronic Properties of Transition-Metal Oxides-11. Cation Distribution Amongst Octahedral and Telrahedral Sites," J. Phys. Chem. Solids, 3, 318-3323 (1957).
15. I. M. Chou, "Calibration of Oxygen Buffers at Elevated P and T Using the Hydrogen Fugacity Sensor," Am. Mineral., 63 [7-8] 690-703 (1978).
16. A. Navrotsky and O. J. Kleppa, "The Thermodynamics of Cation Distributions in Simple Spinels," J. Inorg. Nucl. Chem., 29 [11] 2701-14 (1967).
17. H. C. O'Neill and A. Navrotsky, "Simple Spinels: Crystallographic Parameters, Cation Radii, Lattice Energies, and Cation Distribution," Am. Mineral., 68 [1-2] 181-94 (1983).
18. H. C. O'Neill and A. Navrotsky, "Cation Distributions and Thermodyncamic Properties of Binary Spinel Solid Solutions," Am. Mineral., 69 [7-8] 733-53 (1984).
19. A. Navrotsky, "Models of Crystalline Solutions;" pp. 35-69 in Thermodynamic Modeling of Geological Materials; Minerals, Fluids and Melts, Vol. 17, Edited by I. S. E. Carmichael and H. P. Eugster. Mineralogieal Society of America, Reviews in Mineralogy, Washington, DC, 1987.
20. 4," Am. Mineral., 72 [3-4] 280-91 (1987).
21. K. T. Jacob and G. N. K. Iyenger, "Spinel- Corundum Phase Equilibria in the System Mn-Cr-Al-O and Co-Cr-Al-O at 1373 K," J. Am. Ceram. Soc., 69 [6] 487-92 (1986).
22. B. Bergman and J. Agren, "Thermodynamic Assessment of the System CoO-MnO," J. Am. Ceram. Soc., 69 [12] 877-81 (1986).
23. 2," J. Am. Ceram. Soc., 46 [7] 358 (1963).
24. J. D. Tretjakow and H. Schmalzried, "Zur Thermodynamik von Spinellphasen," Ber. Buns. Phys. Chem., 69 [5] 396-401 (1965).
25. 2 Atmospheres for the Preparation and Free Energy Determinations of Several Oxide Systems," J. Phys. Chem. Solids, 24 [12] 1535-8 (1963).