The Influence of the Additive BaGeO3 on BaSnO3 Ceramics.

Journal of the European Ceramic Society 30 (2010) 1419–1425

23 Pages Posted: 24 Jul 2018

See all articles by Roberto Köferstein

Roberto Köferstein

Martin Luther Universitat Halle Wittenberg

Lothar Jäger

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Mandy Zenkner

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Thomas Müller

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Stefan Ebbinghaus

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Date Written: March 20, 2010

Abstract

DTA, XRD and sintering investigations of the system BaSnO3−BaGeO3, prepared by a mixed-oxide method, are described herein. The melting temperature of this system is about 1270 ± 5 °C. We find a partial solubility of BaGeO3 into BaSnO3 of the order of 6−7 mol%. Up to 50 mol% BaGeO3, the calcined powders (1150 °C) as well as the once-sintered samples consist of BaSnO3 and orthorhombic BaGeO3 at room temperature. A gradual appearance of hexagonal BaGeO3 can be observed in calcined powders and once-sintered ceramics with a BaGeO3 content above 50 mol%. After sintering at ³ 1200 °C for more than 1 h all ceramic bodies consist of BaSnO3 and orthorhombic BaGeO3. The addition of BaGeO3 leads to a considerable reduction of the sintering temperature and to a strong densification. Sintering at 1180 °C for 10 h and an addition of only 1 mol% BaGeO3 leads to dense ceramic bodies with cubic-like grains.

Suggested Citation

Köferstein, Roberto and Jäger, Lothar and Zenkner, Mandy and Müller, Thomas and Ebbinghaus, Stefan, The Influence of the Additive BaGeO3 on BaSnO3 Ceramics. (March 20, 2010). Journal of the European Ceramic Society 30 (2010) 1419–1425 . Available at SSRN: https://ssrn.com/abstract=3206753

Roberto Köferstein (Contact Author)

Martin Luther Universitat Halle Wittenberg ( email )

Universitätsplatz 10
Halle (Saale), Saxony-Anhalt 06108
Germany

Lothar Jäger

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Halle (Saale), Saxony-Anhalt 06108
Germany

Mandy Zenkner

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Halle (Saale), Saxony-Anhalt 06108
Germany

Thomas Müller

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

Emil-Abderhalden-Str. 7
Halle an der Saale
06099 Halle (Saale), DE Sachsen-Anhalt 06099
Germany

Stefan Ebbinghaus

Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry ( email )

Halle (Saale), Saxony-Anhalt 06108
Germany

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