Analytical investigations of β-Al₂O₃ and β″-Al₂O₃ crystals

verfasst von

F. Tietz, J. Koepke, W. Urland

Abstract

Crystals of the solid electrolytes Na⁺-β-alumina and Na⁺-β″-alumina have been synthesized by high temperature solution growth in Na₂O rich fluxes between 1600 and 1700°C. Chemical analysis revealed varying compositions due to a solid solution for both materials. The mean compositions (Na_1.62Al₁₁O_17.31 for Na⁺-β-Al₂O₃ and Na_1.41Mg_0.62Al_10.45O₁₇ for Na⁺-β″-Al₂O₃) determined by electron probe microanalysis (EPMA) indicate untypical sodium contents for these compounds than described usually. For the analytical measurements certain conditions have to be observed because of the high sodium mobility in these materials.

Organisationseinheit(en)

Institut für Physikalische Chemie und Elektrochemie
Institut für Anorganische Chemie

Typ

Artikel

Journal

Journal of crystal growth

Band

118

Seiten

314-318

Anzahl der Seiten

5

ISSN

0022-0248

Publikationsdatum

01.04.1992

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik der kondensierten Materie, Anorganische Chemie, Werkstoffchemie

Elektronische Version(en)

https://doi.org/10.1016/0022-0248(92)90078-W (Zugang: Geschlossen)