162 Prakt. Met. Sonderband 46 (2014)
distribution of the pores. For metallographic investigations the samples had to be ENHA!}
impregnated with a synthetic resin, due to their high porosity. It could be shown that CERAI
pressing and sintering is not an option for producing this metal support with co-sintering,
because of the insufficient shrinkage and the formation of pore agglomerates. As a
reminder, in case of co-sintering a desirable shrinkage would be in the range of 15-20%. A. Egger,
Gravity sintering is an option, but it has to be considered that the shrinkage is rather
isotropic. The distribution of the pores is quite even. For the MIM samples with 50 vol% Montanur
powder loading, the shrinkage was found to be isotropic and in the range of about 13%, Franz-Jos
which seems to be compatible with shrinkage of the SOFC functional layers. The
distribution of the pores was very even, no agglomerations even for this high binder
content could be found. Of course it will have to be checked experimentally if co-sintering
together with all other SOFC layers is possible. ABSTR
The oxyd
ACKNOWLEDGEMENT La2NiO4+
the cataly
This work was carried out within the international project “Hoganas Chair”, coordinated up to one
and funded by Höganäs AB, Sweden. Furthermore, the authors wish to thank Prof. the surfa
J.M.Torralba and his team, Universidad Carlos Ill de Madrid (UC3M), Madrid-Leganes, for experime
their valuable experimental support. the cond
850°C ar
temperatı
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surface r
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of LazNif
through
through :
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this appr
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