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Platinum Ceramic Composites as new Electrode Materials: Fabrication, Sintering, Microstructures and Properties
Author(s) -
Rager J.,
Nagel A.,
Schwenger M.,
Flaig A.,
Schneider G.,
Mücklich F.
Publication year - 2006
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200500192
Subject(s) - materials science , microstructure , sintering , ceramic , spark plasma sintering , platinum , fabrication , electrode , composite material , metallurgy , oxide , catalysis , medicine , biochemistry , chemistry , alternative medicine , pathology
The economical application of precious metals as electrode materials is an important economic and ecological task. Different platinum composites with 14 vol.% ceramic dispersoids were fabricated. The sintering behaviour and microstructure development was studied in the temperature range between 1000°C and 1760°C. Significant differences were found with respect to the sintering activity and the particle size distribution. Spark erosion tests revealed that the erosion resistance of platinum is degraded by the addition of oxide particles. A new model is proposed to explain the observed erosion behaviour.