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An XPS study of iron sodium silicate glass surfaces
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UNSPECIFIED (1996) An XPS study of iron sodium silicate glass surfaces. JOURNAL OF NON-CRYSTALLINE SOLIDS, 208 (3). pp. 267-276. ISSN 0022-3093.
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Abstract
A series of (SiO2)(0.7-x)(Na2O)(0.3)(Fe2O3)(x) glasses (0.0 less than or equal to x less than or equal to 0.18) were prepared and investigated by means of X-ray photoelectron spectroscopy (XPS). The quantitative ratio [Fe2+]/[Fe-total], for each glass has been determined from an analysis of the Fe 3p spectra. For low Fe2O3 content both iron valencies are present, however, it was found that Fe3+ is the dominant species for high Fe2O3. From an analysis of the O 1s spectra, it was possible to discriminate between bridging and non-bridging oxygen atoms. It was found that the ratio of the non-bridging oxygen content to the total oxygen content increases with increasing iron concentration. It has also been shown that the non-bridging oxygen contribution to the O 1s spectra can be simulated by summing the contributions from the SiONa, SiOFe(II) and SiOFe(III) components present in the glass.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General) |
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Journal or Publication Title: | JOURNAL OF NON-CRYSTALLINE SOLIDS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0022-3093 | ||||
Official Date: | December 1996 | ||||
Dates: |
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Volume: | 208 | ||||
Number: | 3 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 267-276 | ||||
Publication Status: | Published |
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