Zobrazeno 1 - 10
of 74
pro vyhledávání: '"José R. Jurado"'
Publikováno v:
Materials Science and Engineering: C. 96:295-301
Bulk titanium nitride (TiN) was synthesized by nitridation of TiO2 rutile substrates. TiN pellets were successfully achieved at 1100 °C in ammonia stream; these materials were characterized by the evaluation of their microstructure, surface, chemica
Autor:
B. Moreno, José R. Jurado, Carlos Perez Bergmann, Eva Chinarro, José Luis Duarte Ribeiro, Vânia Caldas de Sousa, Marcieli Lubini, Annelise Kopp Alves
Publikováno v:
Ceramics International. 43:8715-8720
Electrospun La x Sr 1−x Co 1−y Fe y O 3 (LSCF) fibers with y=0.2 – 1.0 have been investigated as the cathode of intermediate solid oxide fuel cells (IT-SOFC). The electrochemical performances of LSCF (y=0.2–1.0) fibers were studied by impedan
Autor:
José R. Jurado, Tiago Delbrücke, Igor Schmidt, Sergio Cava, Vânia Caldas de Sousa, Sidnei Antonio Pianaro
Publikováno v:
Materials Chemistry and Physics. 184:91-100
TiO 2 -based varistor materials with SrO dopants were prepared by the mechanical mixed oxides synthesis technique using conventional sintering at 1400 °C. I V and microstructural characterization were performed. The composition range of 0.50–2.00
Autor:
Jesús Canales-Vázquez, Pedro Núñez, Juan Carlos Ruiz-Morales, José R. Jurado, R. Fernández-González, Ahmed Makradi
Publikováno v:
International Journal of Hydrogen Energy. 41:19731-19736
In this work, electrochemical improvement of the SOFC anode material was achieved through the modification of a NiO-YSZ anode composition with a further infiltration of a mixed conductor such as Ce0.8Gd0.2O2−δ (CGO20). This approach rendered impro
Autor:
Altair Soria Pereira, Ricson Rocha de Souza, Vânia Caldas de Sousa, José R. Jurado, Rejane K. Kirchner
Publikováno v:
Journal of Solid State Chemistry. 233:259-268
High-pressure processing is a very attractive approach for the production of materials with new and/or improved properties. In this work, pressures in the order of 7.7 GPa and 2.5 GPa were induced in SrBi 2 Ta 2 O 9 samples at different temperatures
Autor:
Vânia Caldas de Sousa, M. Gaier, Elson Longo, José R. Jurado, Cristiane Wienke Raubach Ratmann, Sergio Cava, Faili Cintia Tomsen Veiga, Mário Lúcio Moreira
Publikováno v:
Materials Science Forum. 820:143-148
Tricalcium aluminate (C3A) are used for different applications such as thermal insulation, cement, refractory concrete as binders or binders. The aim of this work is to study the synthesis and sintering behaviour of C3A samples. The chemical synthesi
Autor:
Vânia Caldas de Sousa, Flávio José Tomsen Veiga, Sergio Cava, José R. Jurado, Faili Cintia Tomsen Veiga, Mário Lúcio Moreira
Publikováno v:
Materials Science Forum. 820:137-142
The synthesis of ceramic materials from polymeric precursors has been the subject of numerous studies due to lower energy cost compared to conventional processing. The study aims to research and develop synthesis of calcium aluminate powders via the
Autor:
Vânia Caldas de Sousa, Luis Alberto dos Santos, Tiago Delbrücke, José R. Jurado, Caroline Pigatto, Júlio Cesar Colpo, Camila Ferreira Escobar
Publikováno v:
Materials Science Forum. 820:293-296
Tricalcium phosphate cement (α-TCP) can be used in various fields of health, including as drug delivery systems. The application of a biomaterial based on α-TCP could enable both the constant drug delivery as support and shape damaged muscleskeleti
Publikováno v:
International Journal of Hydrogen Energy. 39:5433-5439
Ce 0.9 Gd 0.1 O 2− δ (10CGO) is a promising candidate as buffer layer for intermediate temperature solid oxide fuel cells (IT-SOFCs). Combustion synthesis is a suitable synthesis method for the production, at low temperatures, of fine and reactive
Publikováno v:
Journal of Alloys and Compounds. 583:481-487
The research on new Pt-based compositions is generally expensive and implies important difficulties, especially concerning the high cost of the raw materials, the formation of secondary phases and the stability, in the experimental conditions, of the