Chemical state analysis of fluorine in various compounds using X-ray fluorescence spectra |
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| Authors: | Shiori Nishibu Masayuki Takashima |
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| Institution: | a Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
b Center for Cooperative Research in Science and Technology, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan |
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| Abstract: | F Kα X-ray fluorescence (XRF) spectra of various fluorides were measured and to investigate the chemical state of fluorine in xHoF3-20BaF2-10AlF3-(70 − x)GeO2 (mol%, x = 10-50) glass. The main peak (Kα1,2) position and the relative intensity of the satellite peak attributable to Kα3,4 were discussed relating to the M-F bond covalency. Results showed that the fluorine in xHoF3-20BaF2-10AlF3-(70 − x)GeO2 (mol%, x = 10-50) glass had a completely different chemical state from that of starting materials. Quantitative analyses of the glasses were also undertaken using XRF measurements for each component. These results suggest that 30% fluorine in the 50HoF3-20BaF2-10AlF3-20GeO2 system is substituted by oxygen through pyrohydrolysis of the fluorides. |
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| Keywords: | WDX-XRF F Kα Chemical state analysis Oxide fluoride glass Rare earth |
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