Search Results - "Poyato, Rosalia"

Unravelling the optimization of few-layer graphene crystallinity and electrical conductivity in ceramic composites by Raman spectroscopy by Muñoz-Ferreiro, Carmen, López-Pernía, Cristina, Gallardo-López, Ángela, Poyato, Rosalía

“…•Quantification of FLG defects is achieved by Raman spectra deconvolution and analysis.•A significant enhancement of the FLG crystallinity is achieved during…”
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Intensification of hydrogen production by methanol steam reforming by Sanz, Oihane, Velasco, Ion, Pérez-Miqueo, Iñigo, Poyato, Rosalía, Odriozola, Jose Antonio, Montes, Mario

“…This paper studies the methanol steam reforming intensification to enhance the hydrogen production in a multi-channel block type micro-reformer. The effects of…”
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Electrochemically Exfoliated Graphene-Like Nanosheets for Use in Ceramic Nanocomposites by Poyato, Rosalía, Verdugo, Reyes, Muñoz-Ferreiro, Carmen, Gallardo-López, Ángela

“…In this work, the synthesis of graphene-like nanosheets (GNS) by an electrochemical exfoliation method, their microstructural characterization and their…”
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A direct in situ observation of water-enhanced proton conductivity of Eu-doped ZrO2: Effect on WGS reaction by García-Moncada, Nuria, Bobadilla, Luis F., Poyato, Rosalía, López-Cartes, Carlos, Romero-Sarria, Francisca, Centeno, Miguel Ángel, Odriozola, José Antonio

“…[Display omitted] •Proton conductivity reveals an optimal dopant amount of 5 mol.% of Eu2O3 in ZrO2.•In situ spectroscopies demonstrate water conductivity by…”
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Al2O3/Y3Al5O12 (YAG)/ZrO2 composites by single-step powder synthesis and spark plasma sintering by Vakhshouri, Maryam, Najafzadehkhoee, Aliasghar, Talimian, Ali, Pernia, Cristina López, Poyato, Rosalía, Gallardo-López, Ángela, Gutiérrez-Mora, Felipe, Prnova, Anna, Galusek, Dušan

“…Alumina-yttrium aluminum garnet (YAG)-zirconia composites are often produced by the melt solidification method. In the present study, we investigated the…”
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Dense graphene nanoplatelet/yttria tetragonal zirconia composites: Processing, hardness and electrical conductivity by Gallardo-López, Angela, Márquez-Abril, Iván, Morales-Rodríguez, Ana, Muñoz, Antonio, Poyato, Rosalía

“…Yttria tetragonal zirconia ceramic composites with 1, 2.5, 5 and 10vol% nominal contents of graphene nanoplatelets (GNPs) were fabricated and characterized…”
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Synthesis and Characterization of a Nearly Single Bulk Ti2AlN MAX Phase Obtained from Ti/AlN Powder Mixture through Spark Plasma Sintering by Salvo, Christopher, Chicardi, Ernesto, Poyato, Rosalía, García-Garrido, Cristina, Jiménez, José Antonio, López-Pernía, Cristina, Tobosque, Pablo, Mangalaraja, Ramalinga Viswanathan

“…MAX phases are an advanced class of ceramics based on ternary carbides or nitrides that combine some of the ceramic and metallic properties, which make them…”
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Study of the Influence of Sintering Atmosphere and Mechanical Activation on the Synthesis of Bulk Ti2AlN MAX Phase Obtained by Spark Plasma Sintering by Salvo, Christopher, Chicardi, Ernesto, García-Garrido, Cristina, Poyato, Rosalía, Jiménez, José A., Mangalaraja, R. V.

“…The influence of the mechanical activation process and sintering atmosphere on the microstructure and mechanical properties of bulk Ti2AlN has been…”
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Ageing-resistant zirconia/graphene-based nanostructures composites for use as biomaterials by Morales-Rodríguez, Ana, González-Orellana, Carmen, Pérez-García, Antonio A., López-Pernía, Cristina, Muñoz-Ferreiro, Carmen, Poyato, Rosalía, Gallardo-López, Ángela

“…This work explores the incorporation of graphene-based two-dimensional nanostructures as moisture barriers to delay hydrothermal ageing of yttria-stabilized…”
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Enhancing the electrical conductivity of in-situ reduced graphene oxide-zirconia composites through the control of the processing routine by López-Pernía, Cristina, Morales-Rodríguez, Ana, Gallardo-López, Ángela, Poyato, Rosalía

“…Graphene oxide (GO) was mixed with 3 mol% yttria tetragonal zirconia polycrystal (3YTZP) using two powder processing routines: a colloidal method in an aqueous…”
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Critical Influence of the Processing Route on the Mechanical Properties of Zirconia Composites with Graphene Nanoplatelets by Gallardo-López, Ángela, Muñoz-Ferreiro, Carmen, López-Pernía, Cristina, Jiménez-Piqué, Emilio, Gutiérrez-Mora, Felipe, Morales-Rodríguez, Ana, Poyato, Rosalía

“…Graphene-based nanostructures, used as potential reinforcement in ceramic composites, have a great tendency to agglomerate. This requires the use of…”
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Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering by López-Pernía, Cristina, Gallardo-López, Ángela, Morales-Rodríguez, Ana, Poyato, Rosalía

“…3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in…”
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Microstructure, interfaces and properties of 3YTZP ceramic composites with 10 and 20 vol% different graphene-based nanostructures as fillers by Muñoz-Ferreiro, Carmen, Morales-Rodríguez, Ana, Rojas, Teresa Cristina, Jiménez-Piqué, Emilio, López-Pernía, Cristina, Poyato, Rosalía, Gallardo-López, Angela

“…The graphene family comprises not only single layer graphene but also graphene-based nanomaterials (GBN), with remarkably different number of layers, lateral…”
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A first insight into the microstructure and crack propagation in novel boron nitride nanosheet/3YTZP composites by Muñoz-Ferreiro, Carmen, Morales-Rodríguez, Ana, Gallardo-López, Ángela, Poyato, Rosalía

“…In this work, novel 3mol% yttria tetragonal zirconia polycristalline (3YTZP) ceramic composites with boron nitride nanosheets (BNNS) are investigated for the…”
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Flexure Strength and Fracture Propagation in Zirconia Ceramic Composites with Exfoliated Graphene Nanoplatelets by Gallardo-López, Ángela, Castillo-Seoane, Javier, Muñoz-Ferreiro, Carmen, López-Pernía, Cristina, Morales-Rodríguez, Ana, Poyato, Rosalía

“…In this work, the flexure strength and fracture propagation mechanisms in yttria tetragonal zirconia (3YTZP) dense composites with 1 and 5 vol.% exfoliated…”
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Spark plasma sintering of TixTa1−xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties by Córdoba, José M., Chicardi, Ernesto, Poyato, Rosalía, Gotor, Francisco J., Medri, Valentina, Guicciardi, Stefano, Melandri, Cesare

“…•Powdered cermets based on (Ti,Ta)(C,N) have been synthesized by reactive milling.•Ceramic composition was tailored by the initial Ti/Ta atomic ratio.•Powdered…”
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Preparation of phase pure, dense fine grained ceramics by conventional and spark plasma sintering of La-substituted BiFeO3 nanoparticles by Perejón, Antonio, Sánchez-Jiménez, Pedro E., Poyato, Rosalía, Masó, Nahum, West, Anthony R., Criado, José M., Pérez-Maqueda, Luis A.

“…High density ceramics of the system Bi1−xLaxFeO3, 0≤x≤0.15, have been prepared starting from nanoparticles obtained by mechanosynthesis. The ceramics have been…”
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Single-wall carbon nanotubes at ceramic grain boundaries by Vasiliev, Alexander L., Poyato, Rosalı´a, Padture, Nitin P.

“…We present a new way of perceiving grain boundaries in ceramic/single-wall carbon nanotube (SWNT) composites – a 3-D network of a 2-D mat comprising entangled…”
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Influence of the Processing Route on the Carbon Nanotubes Dispersion and Creep Resistance of 3YTZP/SWCNTs Nanocomposites by Castillo-Rodríguez, Miguel, Muñoz, Antonio, Morales-Rodríguez, Ana, Poyato, Rosalía, Gallardo-López, Ángela, Domínguez-Rodríguez, Arturo

“…3YTZP matrix composites containing 2.5 vol% of single‐walled carbon nanotubes (SWCNT) were fabricated by Spark Plasma Sintering (SPS) at 1250°C, following…”
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Phase assembly and electrical conductivity of spark plasma sintered CeO2–ZrO2 ceramics by Poyato, Rosalía, Cruz, Sylvia A., Cumbrera, Francisco L., Moreno, Berta, Chinarro, Eva, Odriozola, José A.

“…Ce x Zr 1− x O 2 ( x  = 0.10, 0.16 and 0.33) nanocrystalline powders were obtained by a two-step synthesis technique and sintered by spark plasma sintering…”
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