PROCEDIMIENTO PARA LA UNION DE PIEZAS DE MATERIALES CERAMICOS. UN PROCEDIMIENTO PARA UNIR PIEZAS O ELEMENTOS DE MATERIAL CERAMICO, BASADO EN EL DESLIZAMIENTO DE JUNTAS DE GRANO, QUE CONSTA DE LOS SIGUIENTES PASOS: DESPUES DE REALIZAR UN TRATAMIENTO DE LAS
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November 4, 2022 (v1)PublicationUploaded on: December 4, 2022
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January 14, 2015 (v1)Publication
El desarrollo de los materiales cerámicos estructurales está permitiendo disminuir la fragilidad inherente á los materiales cerámicos. En los compuestos tenaces a base de Zr02, se aprovecha la transformación martensítica tetragonal -^ monoclínica como mecanismo de aumento de la resistencia del material a la propagación de fisuras...
Uploaded on: March 27, 2023 -
January 27, 2023 (v1)Publication
For decades, enormous investigation effort has been devoted to the fabrication of new ceramic matrix composites with enhanced mechanical properties. One of the most explored strategies is the addition of carbon allotropic phases such as carbon nanotubes, graphene, and carbon nanofibers due to their outstanding properties. In this review, the...
Uploaded on: March 1, 2023 -
January 14, 2015 (v1)Publication
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Uploaded on: March 27, 2023 -
April 17, 2023 (v1)Publication
Alumina and alumina/SWCNT nanocomposites have been sintered by spark plasma sintering, obtaining relative densities higher than 99%. Microstuctural characterization revealed a grain microstructure in the submicron range, where alumina/SWCNT nanocomposites exhibited a good CNTs dispersion thought the ceramic matrix. Creep experiments performed...
Uploaded on: April 19, 2023 -
January 14, 2015 (v1)Publication
Muestras de α-SiC han sido sinterizadas con fase líquida (LPS) a 1950 ºC, en atmósfera de argón y tiempos de procesado entre 1 y 7 horas. Mediante microscopia electrónica de barrido (SEM) se ha caracterizado la microestructura, obteniéndose un tamaño medio de grano que aumenta con el tiempo de procesado desde 0.64 a 1.61 µm. Estas muestras han...
Uploaded on: December 4, 2022 -
November 7, 2018 (v1)Publication
Effects on mechanical properties of the presence of either single-walled carbon nanotubes (SWCNTs) or multi-walled carbon nanotubes (MWCNTs) in a 3YTZP matrix have been investigated in this work. Thus, monolithic 3YTZP and 3YTZP containing 2.5 vol% either SWCNTs or MWCNTs were fabricated by Spark Plasma Sintering (SPS) at 1250 °C. Samples were...
Uploaded on: March 27, 2023 -
February 10, 2017 (v1)Publication
La función respuesta escalón de Kohlrausch-Williams-Watts ha permitido incorporar la contribución dieléctrica a la res-puesta eléctrica de los monocristales Y2O3 - Zr02. El modelo de divergencia infrarroja permite interpretar microscópica-mente los resultados. Mediante el análisis del comportamiento dieléctrico se ha mostrado la existencia de...
Uploaded on: March 27, 2023 -
September 3, 2015 (v1)Publication
The temperature dependence of the activation Gibbs free energy [ΔG(T)] and entropy [ΔS(T)] associated with electric conduction in 12 mol % yttria–stabilized-zirconia single crystals was analyzed. In order to determine the ΔG(T) and ΔS(T) functions exactly, it was necessary to impose temperature-behavior conditions on the activation Gibbs free...
Uploaded on: March 27, 2023 -
September 4, 2015 (v1)Publication
Fast ionic conductors are important to study because of their use in the construction of technologically useful devices such as electrochemical cells, oxygen monitors, and the high-temperature fuel cell. Oxygen-ion conductors form a major subgroup of these materials, and, in particular, stabilized zirconia is one of the more important solid...
Uploaded on: December 4, 2022 -
January 14, 2015 (v1)Publication
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Uploaded on: March 27, 2023 -
January 14, 2015 (v1)Publication
Se han fabricado compuestos de 80% vol. Al2 O3/TZP (ZrO2 estabilizada con 2% mol Y2 O3) codopados con 1% vol. Fe2 O3 y 1% vol. TiO2 mediante la tecnología RBAO ("Reaction Bonding of Aluminum Oxide"), que se han sinterizado libremente (1450 ºC, 60 min) y bajo carga uniaxial (20 MPa, 1200 ºC, 60 min). Se ha caracterizado la microestructura...
Uploaded on: December 4, 2022 -
June 9, 2015 (v1)Publication
Se ha estudiado el comportamiento plástico a alta temperatura de alúmina codopada con cantidades equimolares de óxidos de cobre (CuO) y titanio (TiO2) fabricada por reacción mediante el empleo de ensayos de fluencia y de relajación de tensiones en atmósfera de aire. Los resultados de los ensayos de deformación plástica han sido correlacionados...
Uploaded on: March 27, 2023