Abstract
ZIRCONIA is known to exist in at least two crystallographic forms. The stable form at room temperatures is monoclinic1, but this transforms to a tetragonal lattice at some temperature between 950° and 1,250° C. (ref. 2), depending on the purity of the oxide. Cohn3 has claimed a third form, hexagonal, obtained by heating for prolonged periods above 1,900° C. in a solar furnace. Up to the present, this has not been confirmed, but we believe we may have obtained evidence of three forms of zirconia.
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References
Duwez, Pol, and Odell, Frances, J. Amer. Ceram. Soc., 33 (9), 274 (1950).
Mumpton, F. A., and Roy, Rustum, J. Amer. Ceram. Soc., 43 (5), 234 (1960).
Trans. Electrochem. Soc., 68, 65 (1935). Ceram. Abstracts, 18 (9), 244 (1939).
Chalmers, B., King, R., and Shuttleworth, R., Proc. Roy. Soc., A, 193, 465 (1948).
Lennard-Jones, J. E., and Taylor, P. A., Proc. Roy. Soc., A, 109, 476 (1925).
Lukirsky, P. I., C.R. (Doklady) Acad. Sci. U.S.S.R., 46, 274 (1945).
Kuczinsky, G. C., Abernathy, L., and Allen, J., Kinetics of High Temperature Processes, 163 (Chapman and Hall, London, 1959).
Miller, O. O., and Day, M. J., Trans. Amer. Soc. Metals, 30, 541 (1942).
Evans, P. E., Acta Metallurgica, 5 (6), 342 (1957).
Evans, P. E., J. Amer. Ceram. Soc. (in the press).
Holness, H., and Kerr, R. W., Analyst, 74 (582), 505 (1949).
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EVANS, P., WILDSMITH, G. Evidence of Phase Changes in Zirconia from Thermal Etching. Nature 189, 569–570 (1961). https://doi.org/10.1038/189569a0
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DOI: https://doi.org/10.1038/189569a0
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