2024-03-28T20:16:48Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/193312019-02-14T13:16:30Zcom_10261_31com_10261_3col_10261_284
Martínez-Fernández, Julián
López-Robledo, M. J.
Ramírez de Arellano López, Antonio
Real Pérez, Concepción
Peña, J. I.
Sayir, Ali
2009-12-03T14:10:50Z
2009-12-03T14:10:50Z
2006
ECS Transactions 3(1): 459-469 (2006)
1938-5862
http://hdl.handle.net/10261/19331
10.1149/1.2356167
1938-6737
High temperature protonic conductors (HTPC) were fabricated by solid-state sintering and by melt processing by laser-heated floating zone method. Several families of compositions were selected: SrCe1-xMxO3- (with M: Zr and Y; x = 0.1, 0.2), BaCe1-xMxO3- (with Yb, Ca and Y; x = 0.05, 0.2), Sr3Ca1.18Nb1.82O9-, SrZr0.8Y0.2O3- and SrTi0.95Sc0.05O3-. Their mechanical properties have been studied by compression test at constant load and constant compression rate.As produced directionally solidified materials presented a unique microstructure consisting of strongly textured cells with an intercellular phase. The cells have a crystalline Pnma structure. The relation between the processing, dopants, microstructure and mechanical properties is discussed. Understanding of plasticity is important to determine the ultimate component performance, and because its direct relationship to processing and transport. The high temperature mechanical properties of melt grown crystals are superior to the mechanical properties of polycrystals.
eng
closedAccess
Fabrication and properties of high temperature proton conducting perovskites
artículo