Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.ssi.2011.09.010 |
| Title (Primary) | Synthesis and characterization of a nano-scaled barium cerate perovskite powder using starch as polymerization agent |
| Author | Köferstein, R.; Hesse, D.; Ebbinghaus, S.G. |
| Source Titel | Solid State Ionics |
| Year | 2011 |
| Department | TUCHEM |
| Volume | 203 |
| Issue | 1 |
| Page From | 52 |
| Page To | 56 |
| Language | 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. |
| Persistent UFZ Identifier | 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 |
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