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Issue 7, 2011
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Network forming units in alkali borate and borophosphate glasses and the mixed glass former effect

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Abstract

A theoretical approach is presented for relating structural information to transport properties in ion conducting borophosphate glasses. It relies on the consideration of the different types of glass forming units and the charges associated with them. First it is shown how changes of the unit concentration with the overall glass composition can be understood. Then it is demonstrated how the changes in the unit concentrations upon borate–phosphate mixing lead to a re-distribution of Coulomb traps for the mobile ions and a subsequent change in long-range ionic mobilities. The theories are tested against experiments and yield good agreement with the measured data both for the unit concentrations and the variation of the activation energy.

Graphical abstract: Network forming units in alkali borate and borophosphate glasses and the mixed glass former effect

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Publication details

The article was received on 11 Aug 2011, accepted on 17 Aug 2011 and first published on 04 Oct 2011


Article type: Paper
DOI: 10.1039/C1RA00583A
Citation: RSC Adv., 2011,1, 1370-1382
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    Network forming units in alkali borate and borophosphate glasses and the mixed glass former effect

    M. Schuch, C. Trott and P. Maass, RSC Adv., 2011, 1, 1370
    DOI: 10.1039/C1RA00583A

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