التفاصيل البيبلوغرافية
| العنوان: |
Mixed Alkaline Effect in Antimony-Based Glasses |
| المؤلفون: |
Ondrej Bošák, Stanislav Minárik, Viera Trnovcová, D. Maache, Svetlana R. Lukić-Petrović, M. T. Soltani, Marian Kubliha |
| المصدر: |
Russian Journal of Electrochemistry. 55(6):510-516 |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
Materials science, Ionic radius, Analytical chemistry, chemistry.chemical_element, Ionic bonding, 02 engineering and technology, Activation energy, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, Alkali metal, 01 natural sciences, 0104 chemical sciences, Ion, Antimony, chemistry, Electrochemistry, Antimony oxide, 0210 nano-technology |
| الوصف: |
© 2019, Pleiades Publishing, Ltd. Abstract: The mixed alkaline effect (MAE) is a well-known anomaly in glasses. It results in a non-linear response of various physical properties on mixing of alkali ions in the glass. In this paper, the MAE is studied in antimony oxides based glasses 60Sb2O3–20MoO3–(20 – x)Li2O–xNa2O and 60Sb2O3–20MoO3–(20 – x)Li2O–xK2O (in mol %). The influence of Na/Li and K/Li ratios on ionic AC and DC conductivities, and Tg is presented. Dependences of Tg on x, in both types of glasses, have typical minima at x ≅ 10, it means that the minima take place at approximately equal concentrations of both mixed alkali ions. The minimum for K2O containing glasses is deeper, probably due to a larger difference between ionic radii of K+ and Li+ ions. In glasses with one type of alkali ion, Tg decreases in the sequence: K → Li → Na. Temperature dependences of the DC conductivity obey Arrhenius-like relation. The conductivity steeply decreases with increasing Na or K content due to the larger ionic radius of both ions comparing to that of Li ions. At the same time, the conduction activation energy goes through a flat maximum at x = 15 (1.21 eV) for Na2O modifier and at x = 5 (1.16 eV), for K2O modifier. In antimony oxide based glasses, Li+, Na+, and K+ ions are modifiers and dominant charge-carriers. Due to larger ionic radii of Na+, and K+, the decrease of the conductivity after their addition is reasonable. |
| اللغة: |
English |
| تدمد: |
1023-1935 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d74cd9341d14d815a1de216bfac4530b
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069209086&origin=inward |
| حقوق: |
CLOSED |
| رقم الأكسشن: |
edsair.doi.dedup.....d74cd9341d14d815a1de216bfac4530b |
| قاعدة البيانات: |
OpenAIRE |
Find this article in full text from Springer Verlag.