Self Formed Cu-W Functionally Graded Material Produced Via Powder Segregation

Copper – tungsten functionally graded material has been produced by Cu infiltration of a tungsten graded preform which is self formed through segregation effect in a weakly excited bimodal W granular media. Electrical and elastic properties of the final materials are strongly influenced by W microst...

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Veröffentlicht in:	Advanced engineering materials 2007-07, Vol.9 (7), p.542-546
Hauptverfasser:	Janković Ilić, D., Fiscina, J., Oliver, C. G., Ilić, N., Mücklich, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Copper-tungsten materials Exact sciences and technology Functionally graded materials Metals. Metallurgy Powder metallurgy. Composite materials Production techniques Sintered metals and alloys. Pseudo alloys. Cermets
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Beschreibung
Zusammenfassung:	Copper – tungsten functionally graded material has been produced by Cu infiltration of a tungsten graded preform which is self formed through segregation effect in a weakly excited bimodal W granular media. Electrical and elastic properties of the final materials are strongly influenced by W microstructural evolution obtained during vibration. The optimal microstructure for electrical properties consists of a highly 3‐D interconnected Cu phase (skeleton type of microstructure), while the graded structure has the highest E‐modulus.
ISSN:	1438-1656 1527-2648
DOI:	10.1002/adem.200700095