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The Evolution of Sol-Gel Films in the Environmental ScanningElectron Microscope.

Published online by Cambridge University Press:  15 February 2011

Stuart Mckernan,
John Wright and
Lorraine F. Francis
Stuart Mckernan
Affiliation:
University of Minnesota, High-Resolution Microscopy Center, Minneapolis, MN 55455
John Wright
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455.
Lorraine F. Francis
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455.
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Abstract

The ability to study the surface texture of a sol-gel film of lead titanateas it is heated in-situ in an environmental scanningelectron microscope is demonstrated. Measurements of the shrinkage of thefilm at cracks and around delaminations of several microns have been Made.Grain sizes of the final crystalline microstructure were determined to be ∼0.2 μm. The formation of bumps in the film 1–5 μm in size was observed. Thepresence of these features may correlate with the onset ofcrystallization.

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References

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