Platinum Ceramic Composites as new Electrode Materials: Fabrication, Sintering, Microstructures and Properties

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...

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Veröffentlicht in:	Advanced engineering materials 2006-02, Vol.8 (1-2), p.81-88
Hauptverfasser:	Rager, J., Nagel, A., Schwenger, M., Flaig, A., Schneider, G., Mücklich, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Ceramic composites Contact of materials. Friction. Wear Dispersion hardening metals Exact sciences and technology Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metal matrix composites Metals. Metallurgy ODS materials Powder metallurgy. Composite materials Production techniques
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Beschreibung
Zusammenfassung:	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.
ISSN:	1438-1656 1527-2648
DOI:	10.1002/adem.200500192