Abstract
RELATIVELY little electron transmission microscopy has been performed on the harder ceramics (compared with that on metals and on the softer materials such as sodium chloride and talc). The work that has been done has mostly been confined to those materials that cleave readily; magnesium oxide, for example. Materials such as quartz and alumina have proved difficult to prepare in sections thin enough to be electron transparent. Drum1 has thinned alumina by sputtering, but the process of annealing out the resultant surface damage appears to alter the dislocation configuration.
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References
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EVANS, P., HARDIMAN, B. Direct Observation of Dislocations in Alumina. Nature 206, 182–183 (1965). https://doi.org/10.1038/206182a0
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DOI: https://doi.org/10.1038/206182a0
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