61700 20240104111805.0 doi 10.3390/ma10020146 sideral 99162 ART-2017-99162 eng Diez, J.C. Universidad de Zaragoza (orcid)0000-0001-9995-6368 Long-term high-temperature stability of directionally grown [Bi2Ba2O4]p[CoO2] rods 2017 Access copy available to the general public Unrestricted [Bi2Ba2O4]p[CoO2] thermoelectric ceramics have been successfully grown from the melt using the laser floating zone method, followed by a thermal treatment at 700°C under air between 0 and 1532 h. The microstructural, thermoelectric, and mechanical properties were evaluated as a function of the thermal treatment length. Microstructure has shown that as-grown samples are composed of thermoelectric grains, together with a relatively high amount of secondary phases. Thermal treatment decreased the number and amount of secondary phases, producing nearly single-phase samples after 384 h. Consequently, the thermoelectric properties evaluated through the power factor showed a slight increase with the thermal treatment length, mainly due to the decrease of electrical resistivity, while the Seebeck coefficient was nearly unchanged. On the other hand, flexural strength was practically constant after 24 h thermal treatment. info:eu-repo/grantAgreement/ES/DGA/T12 info:eu-repo/grantAgreement/ES/DGA/T87 info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46505-C3-1-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.467 2017 MATERIALS SCIENCE, MULTIDISCIPLINARY 111 / 283 = 0.392 2017 Q2 T2 0.732 2017 Materials Science (miscellaneous) 2017 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Madre, M.A. Universidad de Zaragoza (orcid)0000-0002-0794-3998 Torres, M.A. Universidad de Zaragoza (orcid)0000-0003-3995-5763 Rasekh, S. (orcid)0000-0003-3466-9952 Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 10, 2 (2017), 146 [10 pp] Materials (Basel) Materials 1996-1944 3751902 http://zaguan.unizar.es/record/61700/files/texto_completo.pdf Versión publicada 112948 http://zaguan.unizar.es/record/61700/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:61700 articulos driver 2024-01-04-10:59:43 ARTICLE