Single-phase bulk Al–Cu–Fe quasicrystals by field-assisted sintering

We report the field-assisted spark-plasma sintering (FAST/SPS) synthesis of single-phase bulk quasicrystals starting from ball-milled nanopowders. Our field-assisted sintering procedure exploits the partial melting of the alloy powder precursor, followed by the fast cooling of the sintered part. The...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-02, Vol.475 (1), p.113-116
Hauptverfasser:	Nicula, R., Stir, M., Turquier, F., Burkel, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Al-alloys Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Field-assisted sintering Materials science Mechanical alloying Metals. Metallurgy Nanoscale materials and structures: fabrication and characterization Physics Powder metallurgy. Composite materials Production techniques Quasicrystals Technology
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Beschreibung
Zusammenfassung:	We report the field-assisted spark-plasma sintering (FAST/SPS) synthesis of single-phase bulk quasicrystals starting from ball-milled nanopowders. Our field-assisted sintering procedure exploits the partial melting of the alloy powder precursor, followed by the fast cooling of the sintered part. The formation of the Al-rich grain-boundary phase is kinetically suppressed. The feasibility of FAST/SPS method for the production of bulk Al–Cu–Fe nano-quasicrystalline solids with high chemical homogeneity and uniform microstructures is demonstrated.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2007.01.163