Počet záznamů: 1
Experimental and Simulation of Electric Transport in Alkali Antimonite Glasses
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SYSNO ASEP 0548994 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Experimental and Simulation of Electric Transport in Alkali Antimonite Glasses Tvůrce(i) Kubliha, M. (SK)
Bošák, O. (SK)
Kostka, Petr (USMH-B) RID, ORCID, SAI
Labaš, V. (SK)
Lukič-Petrovič, S. (RS)
Čelič, N. (RS)
Tanuška, P. (SK)
Kebisek, M. (SK)
Soltani, M. T. (DZ)Celkový počet autorů 9 Zdroj.dok. Russian Journal of Electrochemistry. - : Pleiades Publishing - ISSN 1023-1935
Roč. 57, č. 7 (2021), s. 688-699Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova mixed alkali effect ; heavy metal oxide glasses ; electrical conductivity ; thermally stimulated depolarisation current ; neural network model Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla Obor OECD Ceramics CEP GA19-07456S GA ČR - Grantová agentura ČR 8X20053 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora USMH-B - RVO:67985891 UT WOS 000680909500002 EID SCOPUS 85112020457 DOI 10.1134/S1023193521070077 Anotace The non-linear response of various physical properties of glasses on mixing of alkali ions is a well-known anomaly in materials science. In this paper, the mixed alkali effect in antimony oxide based glasses with composition 60Sb(2)O(3)-20WO(3)-(20 x)Li2O-x(M2O), where x = 0, 5, 10, 15, 20 (in mol %) and M = Na or K, is studied. The influence of Na/Li and K/Li ratios on ionic AC and DC conductivities is studied. Temperature dependences of the DC conductivity obey Arrhenius-like relation. The conductivity steeply decreases with increasing Na or K content due to larger ionic radius of Na or K ions compared to that of Li. The relation between composition and local movement of electrical charge was investigated and quantified using the measurement of thermally stimulated depolarization currents. The artificial neural network methods for optimizing experimental parameters used in this paper represent a new approach in comparison with works done on glasses with similar composition. The prepared numerical model could be used for the description of the influence of polarization parameters and the optimization of further measurements oriented on activation energies of ion polarization related to local transport of electrical charge, i.e. Li+ and Na+ ions in our case. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2022 Elektronická adresa https://link.springer.com/article/10.1134%2FS1023193521070077
Počet záznamů: 1