Abstract
Commercial forms of beta alumina have been examined using transmission electron microscopy. Measurements of the stacking fault energy on the basal plane have been made from the separation of partial dislocations and the equilibrium separation of partials at dislocation nodes, and estimated as 0.6 to 1.65×10−3 Jm−2. The structure of two- and three-block beta-alumina has been discussed and their relationship and transformation examined. It has been shown that transformation from two- to three-block beta-alumina cannot be accomplished by a simple shear. Structures generated by the passage of partial dislocations on the glide plane are discussed, and simple twining on the basal plane is examined and shown to be possible in the three-block, but not in the two-block material.
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References
N. Weber andJ. T. Kummer, Intersoc. Energ. Convers. Engng. Conf. (1967) p. 913.
Annual Report, Ford Motor Company, NSF Contract C805, (June 1974).
I. Wynn Jones andL. J. Miles,Proc Brit. Ceram. Soc. 19 (1971) 161.
C. A. Beevers andM. A. S. Ross,Z. Krist 97 (1937) 59.
G. Yamaguchi andK. Suzuki,Bull. Chem. Soc. Japan 41 (1968) 93.
R. Scholder andM. Mansmann,Z. Anorg Allgem. Chem. 321 (1963) 246
J. Thery andD. Briancon,Rev. Hautes Temp. Refract 1 (1964) 221.
M. Bettman andL. L. Terner,Inorg Chem. 10 (7) (1971) 1442.
M. Bettman andC. R. Peters,J. Phys Chem 73 (1969) 1774.
C. R. Peters, M. Bettman, J. W. Moore andM. D. Glick,Acta. Cryst. B27 (1971) 1826.
“Electron Microscopy of Thin Crystals”, P.B. Hirsch, A. Howie, R.B. Nicholson, D.W. Pashley and M.J. Whelan (Butterworths, London, 1965).
A. W. Ruff,Met. Trans. 1 (1970) 2391.
S. Amelinckx andP. Delavignette,J. Appl. Phys. 31 (1960). 2126.
R. Stevens,J. Mater. Sci. 9 (1974) 801.
P. Delavingnette andS. Amelinckx,Trans. Brit. Ceram Soc. 62 (1963) 687.
S. Amelinckx andP. Delavignette,J. Appl. Phys. 32 (1961) 3, 341.
S. Amelinckx,Sol. Stat. Phys. 6 (1964) 291.
V. A. Phillips andJ. A. Hugo,Acta Met. 18 (1970) 123.
A. J. Verma andP. Krishna, “Polymorphism and Polytypism in Crystals” (Wiley, London, 1966).
L. J. Miles andI. Wynn Jones, Extended Abstracts, Electrolytes for Power Sources, Soc. for Electrochem., Brighton (December 1973).
J. Hornstra,J. Phys. Chem. Solids 5 (1958) 129.
P. T. B. Sheaffer,Acta Cryst. B25 (1969) 3, 477.
D. J. M. Bevan, B. Hudson andP. T. Moseley,Mat. Res. Bull. 9 (1974) 1073.
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Stevens, R., Miles, L.J. Stacking fault energy and planar defects on the basal plane in the beta-alumina system. J Mater Sci 11, 1911–1918 (1976). https://doi.org/10.1007/BF00708269
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DOI: https://doi.org/10.1007/BF00708269