Repositorio de producción científica de la Universidad de Sevilla

Ultra-fast and energy-efficient sintering of ceramics by electric current concentration

Opened Access Ultra-fast and energy-efficient sintering of ceramics by electric current concentration

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Domínguez Rodríguez, Arturo
Zapata Solvas, Eugenio
Gómez García, Diego
Todd, R. I.
Departamento: Universidad de Sevilla. Departamento de Física de la Matera Condensada
Fecha: 2015
Publicado en: Scientific Reports, 5, 1-7
Tipo de documento: Artículo
Resumen: Electric current activated/assisted sintering (ECAS) techniques, such as electrical discharge sintering (EDS) or resistive sintering (RS), have been intensively investigated for longer than 50 years. In this work, a novel system including an electrically insulated graphite die for Spark Plasma Sintering (SPS) is described, which allows the sintering of any refractory ceramic material in less than 1 minute starting from room temperature with heating rates higher than 20006C/min and an energy consumption up to 100 times lower than with SPS. The system alternates or combines direct resistive sintering (DRS) and indirect resistive sintering (IRS). Electrical insulation of the die has been achieved through the insertion of a film made of alumina fibers between the graphite die and the graphite punches, which are protected from the alumina fiber film by a graphite foil. This system localized the electric current directly through the sample (conductive materials) as in DRS and EDS, or throug...
[Ver más]
Tamaño: 1.273Mb
Formato: PDF

URI: http://hdl.handle.net/11441/28160

DOI: 10.1038/srep08513

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones