{"id":28665,"date":"2011-05-31T23:46:28","date_gmt":"2011-05-31T21:46:28","guid":{"rendered":"https:\/\/icmsva.vallealto.es\/?articulos_sci=high-temperature-mechanical-behavior-of-polycrystalline-yttrium-doped-barium-cerate-perovskite"},"modified":"2026-04-14T11:49:38","modified_gmt":"2026-04-14T09:49:38","slug":"high-temperature-mechanical-behavior-of-polycrystalline-yttrium-doped-barium-cerate-perovskite","status":"publish","type":"articulos_sci","link":"https:\/\/icmsva.vallealto.es\/?articulos_sci=high-temperature-mechanical-behavior-of-polycrystalline-yttrium-doped-barium-cerate-perovskite","title":{"rendered":"High-temperature mechanical behavior of polycrystalline yttrium-doped barium cerate perovskite"},"content":{"rendered":"<figure><img decoding=\"async\" src=\"https:\/\/icmsva.vallealto.es\/wp-content\/uploads\/2011\/05\/High-temperature-mechanical-behavior-of-polycrysta-1.jpg\" alt=\"High-temperature mechanical behavior of polycrystalline yttrium-doped barium cerate perovskite\" \/><\/figure>\n<p>The high-temperature mechanical properties of the mixed ionic-electronic conductor perovskite BaCe<sub>0.95<\/sub>Y<sub>0.05<\/sub>O<sub>3\u2212<em>\u03b4<\/em><\/sub> with average grain size of 0.40 \u03bcm have been studied in compression between 1100 and 1300 \u00b0C in air at different initial strain rates. The true stress\u2013true strain curves display an initial stress drop, followed by an extended steady-state stage. As the temperature decreases and\/or the strain rate increases, there is a transition to a damage-tolerant strain-softening stage and eventually to catastrophic failure. Analysis of mechanical and microstructural data revealed that grain boundary sliding is the primary deformation mechanism. The strength drop has been correlated with the growth of ultrafine grains during deformation, already present at grain boundaries and triple grain junctions in the as-fabricated material.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The high-temperature mechanical properties of the mixed ionic-electronic conductor perovskite BaCe0.95Y0.05O3\u2212\u03b4 with average grain size of 0.40 \u03bcm have been studied in compression between 1100 and 1300 \u00b0C in air at different initial strain rates. The true stress\u2013true strain curves display an initial stress drop, followed by an extended steady-state stage. As the temperature decreases&hellip;<\/p>\n","protected":false},"featured_media":28669,"template":"","autores":[],"grupos_de_investigacion":[6508],"revistas":[1015],"anos":[894],"destacados":[],"class_list":["post-28665","articulos_sci","type-articulos_sci","status-publish","has-post-thumbnail","hentry","grupos_de_investigacion-materiales-para-energia-y-sostenibilidad","revistas-journal-of-the-european-ceramic-society","anos-894","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci"}],"about":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/types\/articulos_sci"}],"version-history":[{"count":1,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28665\/revisions"}],"predecessor-version":[{"id":28670,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28665\/revisions\/28670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/media\/28669"}],"wp:attachment":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28665"}],"wp:term":[{"taxonomy":"autores","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fautores&post=28665"},{"taxonomy":"grupos_de_investigacion","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fgrupos_de_investigacion&post=28665"},{"taxonomy":"revistas","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Frevistas&post=28665"},{"taxonomy":"anos","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fanos&post=28665"},{"taxonomy":"destacados","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fdestacados&post=28665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}