Local and medium range structure of erbium containing glasses: A molecular dynamics study

International audienceThe influence of increasing ZrO 2 content on the structural features of a rare earths (RE ¼ Nd, La) bearing soda-lime aluminoborosilicate glass was investigated through a multi-spectroscopic approach (Raman, Zr-EXAFS, 29 Si, 11 B, 27 Al and 23 Na MAS NMR). Particular attention was paid to the modifications occurring in the glassy network and on the distribution of Na þ and Ca 2þ ions. Zr 4þ ions were shown to be located in (ZrO 6) 2À sites, connected to the silicate network, and preferentially charge compensated by Na þ ions. A favorable competition of Zr 4þ ions against RE 3þ ions and (BO 4) À entities for charge compensators was observed, but no effect was detected on the environment of (AlO 4) À entities. This competition resulted in a modification of the RE 3þ ions environment with the ZrO 2 content that may affect their solubility in the glassy network

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Local and medium range structure of erbium containing glasses: A molecular dynamics study

Cited by 6 publications

References 36 publications

Impact of non-bridging oxygens on the thermal, electrical and optical properties of germanate glasses and exploration of the germanate anomaly

Impact of non-bridging oxygens on the thermal, electrical and optical properties of germanate glasses and exploration of the germanate anomaly

Thermal stability of SiO2–B2O3–Al2O3–Na2O–CaO glasses with high Nd2O3 and MoO3 concentrations

ZrO 2 addition in soda-lime aluminoborosilicate glasses containing rare earths: Impact on the network structure

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