Chemical analysis of molten slug by high-energy QXAFS

Osugi, Takeshi; Okamoto, Yoshihiro; Shiwaku, Hideaki; Kobayashi, Toru; Nakada, Masami; Nakashio, Nobuyuki; Akabori, Mitsuo; Yaita, Tsuyoshi

no journal, , 

High-energy quick-scan XAFS(QXAFS) technique was used to study chemical state of Ce element in molten slug matrix. The QXAFS measurement for Ce-K absorption edge (E = 40.443 keV) was carried out for the sample (5% CeO in SiO-CaO-FeO matrix) at 1500C. As the result of EXAFS analysis, it can be seen that the nearest Ce-O distance and its coordination number decrease by melting and the similar structure having low structural order is kept after solidifying. These results suggests that Ce exists stably as trivalent in glass phase.