Fabricación de soportes anódicos metálicos para SOFC por vía pulvimetalúrgica

E. Arahuetes; A. Bautista; F. Velasco; M. E. Sotomayor

doi:10.3989/revmetalm.0739

Authors

E. Arahuetes Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Escuela Politécnica Superior, Universidad Carlos III de Madrid
A. Bautista Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Escuela Politécnica Superior, Universidad Carlos III de Madrid
F. Velasco Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Escuela Politécnica Superior, Universidad Carlos III de Madrid
M. E. Sotomayor Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Escuela Politécnica Superior, Universidad Carlos III de Madrid

DOI:

https://doi.org/10.3989/revmetalm.0739

Keywords:

Fuel cell, Metallic support, Powder metallurgy, Porosity, Oxidation

Abstract

The commercialization of environmentally-friendly power production technologies as solid oxide fuel cells (SOFC) implies the cost reduction of the materials initially used in their design. The employment of a porous metallic support that significantly reduces the amount of active ceramic material is an interesting option. In this work, the processing of four different alloys (two Fe-based and two Ni-based) is evaluated for their possible use as porous metallic supports in SOFC. A binder system is proposed that, mixed with big-sized metallic powders, allows to obtain materials with the required porosity level (≥ 30%). Moreover, a stage of grinding prior to compaction of mixes binder-metallic powder allows the manufacturing of dimensionally stable components during binder removal, even although their high porosity.

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