Browsing by Author "Segarra, M."
Now showing items 1-20 of 31
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AFM as an alternative for Young's modulus determination in ceramic materials at elastic deformation regime
(2011-09-08)
Article
Restricted access - publisher's policyA novel alternative to the conventional nanoindentation technique for hard materials is presented. An atomic force microscopy probe is used as an indenter, applying loads in the nN range and producing elastic deformations ... -
Anode-supported SOFC Operated Under Single-chamber Conditions at Intermediate Temperatures
(2011-02-02)
Article
Restricted access - publisher's policyAnode-supported SOFC was fabricated using gadolinia doped ceria (GDC) as the electrolyte (15 lm of thickness), Ni-GDC as the anode and La0.5Sr0.5CoO3 – d-GDC as the cathode. Catalytic activities of the electrodes and ... -
Caracterización mecánica a escala picométrica de YBa1.75Sr0.25Cu3O7-d monocristalino mediante la técnica de autoflujo
(Universidad de Cantabria, 2009)
Conference lecture
Open AccessSe implementa un método para indentar superficies rígidas a niveles nanométricos utilizando un microscopio de fuerzas atómicas (Atomic Force Microscopy-AFM), empleando el modo de espectroscopia de fuerzas (Force ... -
Comportamiento mecánico de materiales masivos supercondcutores de segunda generación en función de la temperatura
(2010-07-01)
Article
Open AccessEn este trabajo se han analizado dos materiales masivos superconductores de base YBaCuO, con el objetivo de estudiar la influencia del método de procesado (método Bridgman y método Top-Seeding Melt Growth) y de la temperatura ... -
Corrosion induced degradation of textured YBCO under operation in high humidity conditions
(2012-05-25)
Article
Restricted access - publisher's policyThe early stages of aggressive degradation at 85% of humidity for 24 h of single crystals of YBa2Cu3O7 − δ textured by Bridgman technique have been analyzed by means of atomic force microscopy, X-ray photoelectron spectroscopy, ... -
Curva tensión-deformación mediante indentación esférica para materiales cerámicos superconductores de YBCO-TSMG
(Universidad de Cantabria, 2009)
Conference lecture
Open AccessLos materiales superconductores, son ampliamente utilizados en el campo de la medicina (RMN, SQUID), para el transporte de corriente (limitadores de corriente), etc. El desconocimiento de sus propiedades mecánicas tales ... -
Determinación de las propiedades mecánicas y mecanismos de fractura de electrolitos de ceria dopada con gadolinia y operadas con metano y propano
(2010-04-20)
Article
Open AccessEl objetivo del presente trabajo es evaluar las propiedades mecánicas, así como los diferentes mecanismos de fractura activados mediante ensayos de indentación instrumentada, de electrolitos basados en circona estabilizada ... -
Determination of hardness, Young's modulus and fracture toughness of lanthanum tungstates as novel proton conductors
(2011-07-11)
Article
Restricted access - publisher's policyLanthanum tungstate is a promising material to be used as electrolyte in proton conducting fuel cells, or as a mixed proton–electron conducting membrane for hydrogen separation, and its mechanical properties are crucial ... -
Effective silver assited welding of YBCO blocks: mechanical versus electrical properties
(2010-04-05)
Article
Open AccessSuperconducting welding of bulk YBCO is a key technology allowing the fabrication of large, complex-shaped pieces for applications such as levitation, bearings or large magnets. Ideally, the electrical and mechanical ... -
Electrical and mechanical characterization by Instrumented Indentation technique of La0.85Sr0.15Ga0.8Mg0.2O3-d electrolytes for SOFCs
(Elsevier, 2012-11-15)
Article
Restricted access - publisher's policyLa0.85Sr0.15Ga0.8Mg0.2O3−δ pellets obtained by the polymeric organic complex solution method, isostatic pressing and sintering at 1350 °C have been electrical and mechanically studied. Electrical measurements evidenced ... -
Estudio de los mecanismos de fractura durante el proceso de oxigenación del YBa2Cu3O7-d (YBCO)
(2008)
Conference lecture
Open AccessEstudio del proceso de fractura en el plano cristalográfico 001 (ab) durante el proceso de oxigenación de materiales superconductores de YBa2Cu3O7-δ (YBCO, a menudo conocido como Y123) mediante nanoindentación a ... -
Magnetical response and mechanical properties of second generation of HTSC, YBCO materials
(InTech — Open Access Company, 2012-05-15)
Part of book or chapter of book
Open Access -
Manufacturing of anode-supported tubular SOFCs by a new shaping technique using aqueous gel-casting
(2011-02-15)
Article
Restricted access - publisher's policyA new gel-casting technique has been successfully developed to obtain tubular NiO–SDC anode-supported solid oxide fuel cells (SOFCs). Rheological parameters of the ceramic particle suspensions, directly influencing on ... -
Mechanical characterization at nanometric scale of a new design of SOFC
(2011-02-09)
Article
Restricted access - publisher's policyThe mechanical stability is an important parameter to gain knowledge in the potential applications of a novel design of electrolyte-supported SOFC, based on yttria-stabilised zirconia (YSZ) and NiO-YSZ composites, with ... -
Mechanical characterization at nanometric scale of ceramic superconductor composites
(NovasScience Publishers, 2009)
Part of book or chapter of book
Restricted access - publisher's policy -
Mechanical characterization at nanometric scale of ceramic superconductor composites I
(NovasScience Publishers, 2009)
Part of book or chapter of book
Restricted access - publisher's policy -
Mechanical properties at the nanometric scale of GDC and YSZ used as electrolytes for solid oxide fuel cells
(2011-02-09)
Article
Restricted access - publisher's policyThe Young’s modulus (E), hardness (H) and fracture toughness (KIC) of various compositions of gadolinia doped-ceria (GDC, GdxCe1−xO2−x/2, 0.1 ⩽ x ⩽ 0.2) and yttria-stabilized zirconia (YSZ, Y0.08Zr0.92O1.96) electrolytes ... -
Mechanical properties of highly textured porous Ni-YSZ and Co-YSZ cermets produced from directionally solidified eutectics
(2011-12-20)
Article
Restricted access - publisher's policyIt is well known that several ceramic materials develop an usual; and sometimes unique; combination of properties as a result of mixing different phases with similar expansion coefficients. Sometimes they are elastically ... -
Nano-mechanical properties of silver-welded YBCO bulks
(2010-02-09)
Article
Open AccessThe mechanical properties of melt-textured YBCO bulk boundaries are a topic of special interest especially in the manufacturing of superconductor devices for engineering applications. Instrumented indentation technique ... -
Nanoindentation of Bridgman YBCO samples
(2012-04)
Article
Restricted access - publisher's policyn this study, the mechanical properties of YBa2Cu3O7−x, obtained by the Bridgman technique, were examined using a Berkovich tip indenter on the basal plane (0 0 1). Intrinsic hardness was measured by nanoindentation tests ...
