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Chromium evaporation of Coated and uncoated FE-22CR steels investigated by a novel denuder technique

Jan Froitzheim (Institutionen för kemi- och bioteknik, Oorganisk miljökemi) ; Larsson Erik (Institutionen för kemi- och bioteknik) ; Lars-Gunnar Johansson (Institutionen för kemi- och bioteknik, Oorganisk miljökemi) ; Jan-Erik Svensson (Institutionen för kemi- och bioteknik, Oorganisk miljökemi)
3rd European Fuel Cell Technology and Applications - Piero Lunghi Conference, EFC 2009; Rome; Italy; 15 December 2009 through 18 December 2009 p. 77-78. (2009)
[Konferensbidrag, refereegranskat]

The formation of volatile chromium species is a major problem concerning metallic interconnects for Solid Oxide Fuel Cells (SOFC). This problem is known and a number of routes, usually in the form of coatings, has been presented to overcome this problem. This paper investigates the influence of thin metallic films which can be applied by a low cost process. The measurements are carried out by a novel denuder technique where volatile chromium species are collected as sodium chromate. This technique allows the quantification of chromium evaporation in a time resolved manner. Coated and uncoated samples of ferritic steels developed for SOFC applications are investigated at 850°C in a N2-O2-H2O environment.



Denna post skapades 2018-01-09.
CPL Pubid: 254373

 

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Oorganisk miljökemi (2005-2014)
Institutionen för kemi- och bioteknik (2005-2014)

Ämnesområden

Kemiteknik

Chalmers infrastruktur