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Preparation of ceramic fibre TEM cross-sections using ultramicrotomy and ion beam thinning methods
Authors:R. LI,I. WADSWORTH,J. YOUNG,&   R. Acheson
Affiliation:Materials Research Institute;, School of Science and Mathematics;, School of Engineering, Sheffield Hallam University, Sheffield S1 1WB, U.K.
Abstract:
The preparation of specimens for detailed TEM microanalysis of micrometre-diameter, ceramic fibre cross-sections is described. The starter material is ceramic fibre in powder form and both ultramicrotomy-based and ion beam thinning-based methods are described. Requirements for specimens of uniform and adequate thinness, for easy selection of representative fibre cross-sections within the same specimen and for a reliable and time-efficient preparation method, resulted in choice of the ultramicrotomy-based method and the associated development of a novel extrusion and sedimentation technique of embedding the fibres to provide necessary pre-alignment and packing.
Keywords:Ceramic fibre    fibre cross-sections    ion beam thinning    TEM specimen preparation    ultramicrotomy
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