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.
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