Huang, B.X.
[Verfasser:in];
Malzbender, J.
[Verfasser:in];
Steinbrech, R. W.
[Verfasser:in];
Grychtol, P.
[Verfasser:in];
Schneider, C. M.
[Verfasser:in];
Singheiser, L.
[Verfasser:in]
Anomalies in the thermomechanical behavior of Ba0.5Sr0.5Co0.8e0.2O3sigma ceramic oxygen conductive membranes at intermediate temperatures
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Medientyp:
E-Artikel
Titel:
Anomalies in the thermomechanical behavior of Ba0.5Sr0.5Co0.8e0.2O3sigma ceramic oxygen conductive membranes at intermediate temperatures
Beteiligte:
Huang, B.X.
[Verfasser:in];
Malzbender, J.
[Verfasser:in];
Steinbrech, R. W.
[Verfasser:in];
Grychtol, P.
[Verfasser:in];
Schneider, C. M.
[Verfasser:in];
Singheiser, L.
[Verfasser:in]
Anmerkungen:
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Beschreibung:
The thermomechanical properties of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) were measured using ring-on-ring tests and depth-sensitive microindentation. The cubic BSCF material exhibits an anomaly in mechanical properties between 200 and 400 degrees C. The observed anomaly is attributed to the transition of Co3+ spin states which is experimentally confirmed by susceptibility measurements. Furthermore, slip lines were observed around the impression when indentation tests were carried out above 260 degrees C.