Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Zirconia"

Mostrando ítems 1-18 de 18

Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions

Carpio-Cobo, Pablo; Salvador Moya, Mª Dolores; Borrell Tomás, María Amparo; Sanchez Vilches, Enrique; Moreno, Rodrigo (Elsevier, 2016)

[EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on ...
Bond strength evaluation of the veneering-core Ceramics bonds

López-Mollá, Mª Victoria; Martínez-González, Mª Amparo; Mañes-Ferrer, José-Félix; Amigó, Vicente; Bouazza-Juanes, Kheira (Medicina Oral, 2010)

[EN] Objective: The purpose of this study was to determine whether the bond of veneering porcelain to a ceramic core in bilayered ceramics was similar to that of the metal ceramic control of well known behaviour. Study ...
Comportamiento a fatiga térmica de la capa de anclaje de nuevas barreras térmicas cerámicas obtenidas mediante proyección por plasma atmosférico

Carpio-Cobo, Pablo; Salvador Moya, Mª Dolores; Borrell Tomás, María Amparo; Sánchez Vilches, Enrique (Universidad Pedagogica y Tecnologica de Colombia, 2016-05)

[PT] O desenvolvimento de novos materiais cerâmicos para aplicá-los em recobrimentos protetores frente à temperatura, também conhecidos como barreiras térmicas (Thermal Barrier Coatings o TBC), é de grande interesse para ...
Desarrollo de cerámicas mediante tecnología de microondas basadas en circona y manganitas de lantano

Moratal Ruiz, Sheila (Universitat Politècnica de València, 2023-12-18)

[ES] Debido a los rápidos avances tecnológicos de las últimas décadas han surgido nuevas necesidades que requieren la generación de nuevos materiales a la carta que cumplan con ciertas funcionalidades o que adquieran ...
Desarrollo de materiales cerámicos base circona sinterizados mediante técnicas rápidas no convencionales

Guillén Pineda, René Miguel (Universitat Politècnica de València, 2022-01-17)

[ES] Los avances tecnológicos se encuentran, en algunas ocasiones, limitados debido a la imposibilidad de combinar las excelentes prestaciones de los materiales conocidos con algunas funcionalidades críticas necesarias ...
Effect of Gas Atmosphere on Catalytic Behaviour of Zirconia, Ceria and Ceria Zirconia Catalysts in Valeric Acid Ketonization

Zaytseva, Yu. A.; Panchenko, V. N.; Simonov, M. N.; Shutilov, A. A.; Zenkovets, G. A.; Renz, Michael; Simakova, I. L.; Parmon, V. N. (Springer Verlag (Germany), 2013-06)

[EN] Ketonization of valeric acid, which can be obtained by lignocellulosic biomass conversion, was carried out in a fixed bed flow reactor over ZrO2, 5-20 % CeO2/ZrO2 and CeO2 both under hydrogen and nitrogen stream at ...
Effect of the C-alpha substitution on the ketonic decarboxylation of carboxylic acids over m-ZrO2: the role of entropy

Oliver-Tomás, Borja; Gonell-Gómez, Francisco; Pulido, Angeles; Renz, Michael; Boronat Zaragoza, Mercedes (Royal Society of Chemistry, 2016)

[EN] The kinetics of the ketonic decarboxylation of linear and branched carboxylic acids over m-ZrO2 as a catalyst has been investigated. The same apparent activation energy is experimentally determined for the ketonic ...
Enhanced hydrothermal resistance of Y-TZP ceramics through colloidal processing

Rayón Encinas, Emilio; Moreno, R.; Alcazar, C.; Salvador Moya, Mª Dolores; Manjón Herrera, Francisco Javier; Jimenez-Pique, E.; Llanes, L. (Wiley, 2013-04)

Two commercial zirconia powders with 3mol% of yttria (TZ3YE and TZ3YS, labeled as ZE and ZS, respectively) supplied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by dispersing ...
ESTUDIO Y CARACTERIZACIÓN DE BIOCERÁMICAS DENTALES BASE CIRCONA OBTENIDAS MEDIANTE TECNOLOGÍA DE MICROONDAS

Serrano Miralles, Jorge (Universitat Politècnica de València, 2021-06-29)

[ES] Las cerámicas oxídicas basadas en oxido de zirconio (ZrO2) son empleadas frecuentemente como materiales estructurales en aplicaciones biomédicas, más concretamente, en el campo de los implantes dentales. Sus propiedades ...
Improvement of microstructural properties of 3Y-TZP materials by conventional and non-conventional sintering techniques

Borrell Tomás, María Amparo; Salvador Moya, Mª Dolores; Rayón Encinas, Emilio; Penaranda-Foix, Felipe L. (Elsevier, 2012-01)

3 mol% Y2O3-stabilized zirconia nanopowders were fabricated using various sintering techniques; conventional sintering (CS) and non-conventional sintering such as microwave (MW) and pulsed electric current-assisted-sintering ...
Influence of SiC addition on mechanical behavior of thermal barriers with the aid of acoustic emission

Busquets Mataix, David Jeronimo; Bloem, Carlos; Borrell Tomás, María Amparo; Salvador Moya, Mª Dolores (MDPI, 2021-01)

[EN] The improvement of high temperature materials with lower heat transfer coefficients lead to the development of thermal barrier coatings (TBCs). One of the most widely used materials for thermal barrier coatings is ...
Materiales cerámicos avanzados con aplicaciones odontológicas obtenidos por sinterización de polvos mediante la técnica de microondas

Presenda Barrera, Álvaro (Universitat Politècnica de València, 2015-07-31)

[EN] Microwave sintering is one of the most novel methods for processing advanced ceramic materials and it represents a very attractive alternative with respect to traditional sintering methods. It offers several important ...
Structure-reactivity relations in Cu/ZrO2 catalysed glycerol dehydration to acetol in continuous flow

Mazarío-Santa-Pau, Jaime; Jampaiah, Deshetti; Concepción Heydorn, Patricia; Villasante-Iturria, Pablo; Wilson, Karen; Lee, Adam; Domine, Marcelo Eduardo (The Royal Society of Chemistry, 2024-05)

[EN] The selective dehydration of glycerol to hydroxyacetone (acetol) was studied in a continuous flow fixed-bed reactor with CuO supported on monoclinic (m-) or tetragonal (t-) ZrO2 nanoparticles. Catalysts were characterised ...
Study on the Hydrogenation of Ethyl Stearate to the Fatty Alcohol 1-Octadecanol over Ru on Tungstated Zirconia

Quintero-Ramos, Diego; Checa, Manuel; Jorda Moret, Jose Luis; Sabater Picot, Mª José (MDPI AG, 2023-10)

[EN] Fatty alcohols are important products in the chemical industry, given that they are frequently used in the formulation of surfactants and lubricants. In this context, this work describes a catalytic heterogeneous ...
Tribological behavior of TZ4YS-MoSi2 composites obtained by Spark Plasma Sintering

Benavente Martínez, Rut; Salvador Moya, Mª Dolores; Bloem, Carlos; Gutiérrez-González, Carlos F.; Alcázar, Carmen; Moreno, Rodrigo; Borrell Tomás, María Amparo (Elsevier, 2021-11)

[EN] The aim of this work was to evaluate the role of MoSi2 content (5, 10, 15 wt%) in the mechanical and tribological behavior of TZ4YS-MoSi2 composites obtained by colloidal processing and spark plasma sintering (SPS) ...
Valorization of Bio-Alcohols into Added Value Chemicals

Balestra, Giulia (Universitat Politècnica de València, 2022-07-28)

[ES] El presente trabajo de investigación está centrado en la valorización y la mejora del bioetanol, empleando catalizadores heterogéneos, en un reactor de flujo continuo a escala de laboratorio. En primer lugar, en los ...
Vanadium Supported on Alumina and/or Zirconia Catalysts for the Selective Transformation of Ethane and Methanol

Benomar, S.; Masso Ramírez, Amada; Solsona Espriu, Benjamin Eduardo; Isaadi, R.; López Nieto, José Manuel (MDPI AG, 2018-04)

[EN] Vanadium supported on pure (Al2O3, ZrO2) or mixed zirconia-alumina (with Al/(Al + Zr) ratio of 0.75 or 0.25) catalysts have been prepared by wet impregnation, using homemade prepared supports. The catalysts have been ...
YSZ monoliths promoted with Co as catalysts for the production of H2 by steam reforming of ethanol

Gaudillere, Cyril Christian; González Pérez, Juan José; Chica, Antonio; Serra Alfaro, José Manuel (Elsevier, 2017)

[EN] Steam reforming of ethanol was investigated between 400 degrees C and 600 degrees C over 3 mol% Y2O3 doped ZrO2 monolith infiltrated with Co, known as an effective catalyst for this reaction. Monoliths were fabricated ...