Abstract
Nickel spinel, Ni1−xAl2(1+x/3)O4, is the only intermediate compound in the quasibinary NiO-α-Al2O3 system at temperatures between 1000 and 1920°C. The spinel equilibrated with NiO occurs at its stoichiometric composition, NiAl2O4, independent of temperature. An alumina rich spinel, 0.17 ⩽x⩽ 0.62, equilibrated with α-Al2O3 increases in alumina content with increasing temperature. Aluminum oxide solubility in NiO increases from 1 mole % at 1000°Cto 3 mol % at 1800°C. Nickel oxide solubility in α-Al2O3 was found to increase from 2 mole % at 1000°C to 3 mole % at 1920°C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Y. Iida,J. Jpn. Soc. Powder Met. 6, 55 (1959).
B. Phillips, J. J. Hutta, and I. Warshaw,J. Am. Ceram. Soc. 46, 579 (1963).
Anne-Marie LeJus, Ph. D. thesis, University of Paris (1964).
H. Schmalzried,Prog. Solid State Chem. 2, 265 (1965).
F. S. Pettit, E. H. Randklev, and E. J. Felten,J. Am. Ceram. Soc. 49, 199 (1966).
W. J. Minford and V. S. Stubican,J. Am. Ceram. Soc. 57, 363 (1974).
P. Duncumb and S. J. B. Reed,Natl. Bur. Stand. (U.S.) Spec. Publ. No. 298 (1968).
J. Philibert, Proceedings of the Third International Symposium on X-Ray Optics and X-Ray Microanalysis, Stanford (1962).
P. Duncumb and P. K. Shields, inThe Electron Microprobe, T. D. McKinley, K. F. J. Heinrich, and D. B. Wittry, eds. (John Wiley & Sons, New York, 1966), p. 284.
R. Casting, Ph. D. thesis, University of Paris (1951).
M. Creen and V. E. Cosslett,Proc. Phys. Soc. (London) 78, 1206 (1961).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Elrefaie, F.A., Smeltzer, W.W. Phase equilibria in the subsolidus region of the NiO-α-Al2O3 system between 1000 and 1920°C. Oxid Met 15, 495–500 (1981). https://doi.org/10.1007/BF00603540
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00603540