Details zur Publikation |
Kategorie | Textpublikation |
Referenztyp | Zeitschriften |
DOI | 10.1016/j.ssi.2011.09.010 |
Titel (primär) | Synthesis and characterization of a nano-scaled barium cerate perovskite powder using starch as polymerization agent |
Autor | Köferstein, R.; Hesse, D.; Ebbinghaus, S.G. |
Quelle | Solid State Ionics |
Erscheinungsjahr | 2011 |
Department | TUCHEM |
Band/Volume | 203 |
Heft | 1 |
Seite von | 52 |
Seite bis | 56 |
Sprache | englisch |
Keywords | Barium cerate; Starch; Perovskite; Ceramic; Sintering; Soft-chemistry synthesis |
Abstract | The preparation of nano-sized BaCeO3 powder using starch
as a polymerization agent is described herein. Phase evolution during
the decomposition process of a (BaCe)-gel was monitored by XRD. A
phase-pure nano-sized BaCeO3 powder was obtained after calcining of the (BaCe)-gel at 920 °C. The resulting powder has a specific surface area of 15.4 m2/g.
TEM investigations reveal particles mainly in the size range of 30 to
65 nm. The shrinkage and sintering behavior of resulting powder compacts
were studied in comparison to a coarse-grained mixed-oxide BaCeO3 powder (SBET = 2.1 m2/g).
Dilatometric measurements show that the beginning of shrinkage of
compacts from the nano-sized powder is downshifted by 300 °C compared to
mixed-oxide powder. Compacts from the nano-sized powder reach a
relative density of 91% after sintering at 1450 °C for 10 h. |
dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11870 |
Köferstein, R., Hesse, D., Ebbinghaus, S.G. (2011): Synthesis and characterization of a nano-scaled barium cerate perovskite powder using starch as polymerization agent Solid State Ion. 203 (1), 52 - 56 10.1016/j.ssi.2011.09.010 |