Ac conductivity and ion transport in K+-for-Na+ ion-exchanged glasses: exchange experiments below and above the glass transition temperature

Dubiel, M.; Roling, Bernhard; Füting, M.

doi:10.1016/j.jnoncrysol.2003.08.073

Cited by 11 publications

(7 citation statements)

References 34 publications

(40 reference statements)

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“…In fact, this has been confirmed by studies both in Germany by EXAFS [185] and in the UK and Greece by infrared reflection spectroscopy [186]. On the other hand, recent studies, again in Germany [187] and the UK [188], have shown that a ‘normal’ MAE is not established when K + -ions are introduced into a sodium silicate glass, even slightly above T G . Clearly, the opening up of potassium sites is inhibited by the compressive stress caused by the size of the K + -ion.…”

Section: An Evolving Scheme Of Materials Sciencementioning

confidence: 77%

Solid State Ionics: from Michael Faraday to green energy—the European dimension

Funke¹

2013

Science and Technology of Advanced Materials

142

102

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Solid State Ionics has its roots essentially in Europe. First foundations were laid by Michael Faraday who discovered the solid electrolytes Ag2S and PbF2 and coined terms such as cation and anion, electrode and electrolyte. In the 19th and early 20th centuries, the main lines of development toward Solid State Ionics, pursued in Europe, concerned the linear laws of transport, structural analysis, disorder and entropy and the electrochemical storage and conversion of energy. Fundamental contributions were then made by Walther Nernst, who derived the Nernst equation and detected ionic conduction in heterovalently doped zirconia, which he utilized in his Nernst lamp. Another big step forward was the discovery of the extraordinary properties of alpha silver iodide in 1914. In the late 1920s and early 1930s, the concept of point defects was established by Yakov Il'ich Frenkel, Walter Schottky and Carl Wagner, including the development of point-defect thermodynamics by Schottky and Wagner. In terms of point defects, ionic (and electronic) transport in ionic crystals became easy to visualize. In an ‘evolving scheme of materials science’, point disorder precedes structural disorder, as displayed by the AgI-type solid electrolytes (and other ionic crystals), by ion-conducting glasses, polymer electrolytes and nano-composites. During the last few decades, much progress has been made in finding and investigating novel solid electrolytes and in using them for the preservation of our environment, in particular in advanced solid state battery systems, fuel cells and sensors. Since 1972, international conferences have been held in the field of Solid State Ionics, and the International Society for Solid State Ionics was founded at one of them, held at Garmisch-Partenkirchen, Germany, in 1987.

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Section: An Evolving Scheme Of Materials Sciencementioning

confidence: 77%

Solid State Ionics: from Michael Faraday to green energy—the European dimension

Funke¹

2013

Science and Technology of Advanced Materials

142

102

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“…The behavior is quite similar to that observed in borosilicate glass although the current limit is reached at 1000 V cm −1 . SLS glass contains more alkali ions compared to BS tubes and, therefore, its conductivity and current density are higher . This probably can account for the lower E‐field at the current limit.…”

Section: Resultsmentioning

confidence: 99%

Electric field‐assisted ion exchange strengthening of borosilicate and soda lime silicate glass

Talimian

Mariotto

2017

Int J of Appl Glass Sci

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In this study, we investigate the effects of electric field-assisted ion exchange (EF-IE) on potassium for sodium ion exchanges of soda borosilicate and soda lime silicate glasses. The results show that applying an electric field (E-field) with the intensity of 1000 V cm À1 for few minutes produces an exchanged layer with a thickness comparable to the conventional chemical strengthening for 4 hours. There is a critical E-field that increases the mobility and, therefore, the diffusion coefficient of the potassium ions in the glasses. The increase is, perhaps, related to the evolution of the glass structure due to the penetration of potassium ions under an E-field. Vickers indentations showed that strong compression is generated in the glass by EF-IE; however, the bending strength improvement is limited because of the presence of large surface defects and the stress distribution inhomogeneity. K E Y W O R D Sborosilicate, chemical strengthening, electric field-assisted ion exchange, soda lime silicate

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“…Although this technique offers some experimental difficulties [15], we may expect the following ideal scenario. We start from a given reference glass prepared from a melt containing a fixed amount of cations with the composition ratio f 0 .…”

Section: Weak Mixed Alkali Effect: Model and Resultsmentioning

confidence: 99%

“…Then we exchange below T g a part of the cations in order to obtain the new composition ratio f 5 f 0 . The main result of [15] is that the new diffusion coefficient D(f; f 0 ) is not equivalent to D(f) which can be measured for a glass prepared from a melt of cation composition f.…”

Section: Weak Mixed Alkali Effect: Model and Resultsmentioning

confidence: 99%

Disorder induced anomalous behavior: Cation conductivity of glasses and amorphous solids

Schulz

2006

Journal of Non-Crystalline Solids

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Ac conductivity and ion transport in K+-for-Na+ ion-exchanged glasses: exchange experiments below and above the glass transition temperature

Cited by 11 publications

References 34 publications

Solid State Ionics: from Michael Faraday to green energy—the European dimension

Solid State Ionics: from Michael Faraday to green energy—the European dimension

Electric field‐assisted ion exchange strengthening of borosilicate and soda lime silicate glass

Disorder induced anomalous behavior: Cation conductivity of glasses and amorphous solids

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