Mechanical and Electrochemical Properties of Lithium Aluminoborate Glasses

Abstract: The elastic moduli and the indentation behavior of glasses from the xLi2O-5Al2O3-(95−x)B2O3 system, with x = 35, 40, and 50 were characterized. Glasses become softer and less resistant to indentation cracking as the lithium content is increased, as a result of increasing the numbers of 3-fold coordinated boron and non-bridging oxygen atoms in this composition range. In parallel, the ionic conductivity at 25 °C is increased from 3.7 10–10 to 5.5 10–8 S∙cm–1, and the activation energy, as measured in the 10 to 90 °C ranges is between 55 (50 % Li2O) and 65 (35 % Li2O) kJ∙mol–1, which shows that the ionic diffusion of lithium is easier in Li-rich compositions. Measurements of the conductivity under a compressive load aligned with the electric field revealed a mechanical-electrical coupling. The change of the activation energy with the stress is associated with an activation volume, and thus a stress sensitivity, that is increased with the lithium content. https://www.tib-op.org/ojs/index.php/glass-europe/article/view/1382

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Mechanical and Electrochemical Properties of Lithium Aluminoborate Glasses ; volume:2 ; year:2024 ; Glass Europe ; 2 (2024)

Beteiligte, Orts- und Zeitangaben

• Urheber: To, Theany ; Ladjani, Ismail ; Houizot, Patrick ; Le Coq, David ; Calvez, Laurent ; Moreac, Alain ; Braiek, Sonia ; Le Fur, Mickael ; Rouxel, Tanguy

Weitere Informationen

• DOI: 10.52825/glass-europe.v2i.1382
• URN: urn:nbn:de:101:1-2407261241259.828480158296
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:46 MESZ