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Prototipagem rápida de pilhas a combustível de óxido sólido

Rapid prototyping (RP) technologies can automatically manufacture near-net shape parts with complicated geometry from Computer-Aided Design (CAD) data. The three dimensional part is built up by powder consolidation in layers ("additive" or "generative" process). For this reason, these techniques are often referred to as solid freeform fabrication or layered manufacturing. In...

Numerical Evaluation of a Light-Gas Gun Facility for Impact Test

. Reynolds, and P. Anz-Meader, Orbital Debris Environment for Spacecraft Designed to Operate in Low Earth Orbit, NASA, 1989. L. Neckel, D. Hotza, D. Stainer et al., “Solutions for impact over aerospace ... applications,” Ceramic Engineering and Science Proceedings, vol. 29, no. 6, 2009. View at Google ScholarL. Neckel, D. Hotza, D. Stainer, R. Janssen, and H. Al-Qureshi, “Modelling of ballistic impact over a

Development of Alternative Glass Ceramic Seal for a Planar Solid Oxide Fuel Cell

SOFC, electrical and chemical characterizations must be finalized, which are the topics of ongoing research. Disclosure P. Lemes-Rachadel, H. Birol, A. P. N. Oliveira, and D. Hotza are members in the ... Google Scholar · View at ScopusC. M. Gomes, A. P. N. Oliveira, D. Hotza, N. Travitzky, and P. Greil, “LZSA glass-ceramic laminates: fabrication and mechanical properties,” Journal of Materials Processing

Development of Alternative Glass Ceramic Seal for a Planar Solid Oxide Fuel Cell

SOFC, electrical and chemical characterizations must be finalized, which are the topics of ongoing research. Disclosure P. Lemes-Rachadel, H. Birol, A. P. N. Oliveira, and D. Hotza are members in the ... Google Scholar · View at ScopusC. M. Gomes, A. P. N. Oliveira, D. Hotza, N. Travitzky, and P. Greil, “LZSA glass-ceramic laminates: fabrication and mechanical properties,” Journal of Materials Processing

Relationship between Rheological Behaviour and Final Structure of Al?O? and YSZ Foams Produced by Replica

Society, vol. 87, no. 7, pp. 1392–1394, 2004. View at Publisher · View at Google Scholar · View at ScopusC. R. Rambo, E. Sousa, A. P. N. Oliveira, D. Hotza, and P. Greil, “Processing of cellular glass ... , J. A. Escobar, O. A. Alvarez, C. R. Rambo, A. P. N. de Oliveira, and D. Hotza, “ZrO2 foams for porous radiant burners,” Journal of Materials Science, vol. 44, no. 13, pp. 3466–3471, 2009. View at

Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete

This paper investigates the porosity and the mechanical strength of an Autoclaved Clayey Cellular Concrete (ACCC) with the binder produced with 75 wt% kaolinite clay and 25 wt% Portland cement. Aluminum powder was used as foaming agent, from 0.2 wt% to 0.8 wt%, producing specimens with different porosities. The results show that the specimens with higher content of aluminum...

Utilização do subproduto da recuperação metálica de escórias de aços inoxidáveis na síntese de pigmentos cerâmicos; caracterização da matéria-prima

The metallic recovering process of steel industry slags - waste produced in a big amount by the process of pig iron refining for steel obtainment, which aims the recovering of noble metals, produces a oxide mass that can be used as a precursor source for the synthesis of the Victory Green ceramic pigment. Victory Green is the name of the ceramic pigment based on calcium, chromium...