Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
88 (1988), S. 2015-2020
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The color change of cobalt borate glasses obtained by varying the alkali content in the glass has been investigated by x-ray diffractometry. A good number of spectroscopic studies attributed the change of color to a structural rearrangement of the cobalt ion in the host glass but no direct structural information has been presented to date. We examined three cobalt borate glasses containing about 5% in weight of CoO and different K2O contents (about 15%, 22%, and 29% in weight). Their radial distribution functions were compared with those of suitable cobalt-free potassium borate glass matrices and difference distribution curves obtained. Analysis of these curves allowed a quantitative description of the cobalt environment in terms of tetrahedral–octahedral structural rearrangements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.454075
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