Abstract
The paper is concerned with the application of combined electron energy loss spectroscopy (EELS) and transmission electron microscopy (TEM) to the characterization of the chemical-bond state of elements at nanometer resolution. Respective information is contained in the energy loss near-edge fine structure (ELNES) usually appearing in the energy range up to about 30 eV above the edge onset. The practical way of chemical-bond analysis was chosen, viz. to compare the ELNES of the feature under investigation with those of known stoichiometry. The efficiency of this special technique is demonstrated for different material systems, particularly fiber-reinforced composites and functional ceramics, having structural details of some ten nanometres, or smaller.
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