About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Ceramics for Clean Hydrogen
|
| Presentation Title |
High Temperature Tensile Strength of Ultrathin 3YSZ Ceramic Tapes Applied for SOEC |
| Author(s) |
Ilaria Bombarda, Nico Langhof, Stefan Schaffoener |
| On-Site Speaker (Planned) |
Stefan Schaffoener |
| Abstract Scope |
High temperature electrolysis (HTEL) has several advantages compared to other types of solid oxide cells (SOC), including a high efficiency at 850 °C. To reduce costs, increase lifetime and improve scale up production of electrolyte supported SOCs, an important property is the mechanical stability of the cell, which is mainly provided by the ceramic electrolyte. In this study, the authors investigated the tensile and ring-on-ring properties of ultrathin (t = 90 µm) 3YSZ tapes at room and high temperature (T = 850 °C). A test setup and sample preparation were developed for the tensile test. The effect of machining regarding strength, phase composition (XRD), surface roughness (SEM) was studied. The tensile test concept was then adapted to a high temperature setup, allowing the tensile test at 850 °C with 90% valid samples. A 50 % strength drop was observed in tensile and ring-on-ring compared to room temperature. |