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Artículo
Cavitación durante la fluencia de policristales de Si3N4
(Sociedad Española de Cerámica y Vidrio, 2005)
Este trabajo está orientado a determinar las condiciones de tensión y temperatura para las cuales ocurre la nucleación y coalescencia de cavidades en dos materiales cerámicos a base de nitruro de silicio sinterizados bajo ...
Artículo
High-temperature mechanical behavior of proton-conducting yttrium-doped barium zirconate perovskite
(Elsevier, 2021-02)
The high-temperature mechanical properties of yttrium doped barium zirconate obtained by two different routes are reported in this work. Polycrystals with composition BaZr0.85Y0.15O2.925 have been fabricated from nanopowders ...
Artículo
Fabrication, microstructure and high-temperature plastic deformation of three-phase Al2O3/Er3Al5O12/ZrO2 sintered ceramics
(Elsevier, 2021)
The fabrication, microstructure and high-temperature creep behavior of chemically compatible, three-phase alumina/erbium aluminum garnet (Er3Al5O12, EAG)/erbia fully-stabilized cubic ZrO2 (ESZ) particulate composites with ...
Artículo
Dynamic recrystallization during creep of proton-conducting barium cerate perovskites
(Wiley-Blackwell, 2022-11)
Uniaxial compression tests were conducted on perovskite-structured barium cerate polycrystals doped with 5-at.% yttrium and 5-at.% ytterbium and submicrometric grain sizes, at temperatures between 1423 and 1573 K (0.70–0.78Tm) ...
Artículo
Fabrication and creep properties of eutectic-composition Al2O3/YAG/YSZ sintered composites
(Elsevier, 2021-12)
Three-phase alumina/YAG/yttria-stabilized cubic zirconia (YSZ) composites were fabricated by a solid-state reaction route starting from commercial powders of Al2O3, Y2O3 and monoclinic ZrO2. The final phases Al2O3, YAG and ...
Artículo
Microstructural characteristics of TZP/Ni cermets plastically deformed at high temperature
(Elsevier, 2007)
The microstructure of 3 mol% Y2O3-stabilized tetragonal ZrO2/Ni (TZP/Ni) composites has been investigated for nickel concentrations of 20, 30 and 40 vol.% before and after creep tests conducted in argon atmosphere at 1250 ...
Artículo
Metal-like peak stress behavior of yttrium-doped BaCeO3 ceramic
(Elsevier, 2022)
The high-temperature mechanical behavior of polycrystalline 5 at% yttrium-doped barium cerate with submicronic grain size (d = 0.5 µm) has been studied in compression between 1200 and 1300 °C at different initial strain ...
Artículo
Creep properties of high dense La9.33Si6O26 electrolyte for SOFCs
(Elsevier, 2020-05)
High density La9.33Si6O26 polycrystals were fabricated by conventional and spark plasma sintering starting from nanopowders synthesized by freeze-drying. The materials exhibit a homogeneous microstructure formed by equiaxed ...