Abstract
The fundamentally common structure of the core loss edges was recognized among C-K, N-K and O-K edges from titanium compounds such as TiC, TiN, TIO2 and BaTiO3, because of the octagonal structure and six coordination numbers of light elements in the face-centered titanium lattice. However, B-K edges of TiB, have a different structure of core loss edge than the others. In interstitial compounds, the binding energy of Ti-L edges is almost the same as that of titanium metal, while the binding energy of Ti-L edges of oxides such as TiO2 and BaTiO3 was higher than that of interstitial compounds.