CNT-aluminum metal matrix nanocomposites

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Reis, MAL (Author) Other; Simoes, S (Author) FEUP; Del Nero, J (Author) Other; Viana, F (Author) FEUP; Vieira, MF (Author) FEUP

Conference proceedings International

Title: ECCM15

ECCM15 - 15TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS

Venice, Italy, 24-28 June

Indexing

ISI Web of Knowledge

Scopus - 3 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Materials engineering

Other information

Authenticus ID: P-009-P07

Abstract (EN): Carbon Nanotubes-Aluminum (CNT-Al) agglomerates were synthesized by DC arc discharge method under argon/acetone mixed atmosphere. Synthesis was performed by arc plasma on high pure graphite rod, filled by aluminum powder as anode and aluminum plate as cathode. Discharge conditions of 85 A and 20 V were used at a pressure range of 0.5 to 1 MPa. This new method allows obtaining nanotubes agglomerated with aluminum. Metal matrix composites were produced with this agglomerates dispersed in an aluminum matrix. Mixtures of CNT-Al agglomerates, 0.5 and 1.0 wt%, with Al powders were pressed and sintered at 625 °C. A poor dispersion of the agglomerates in the metal matrix was obtained. For both compositions large clusters were observed at aluminum grain boundary junctions. Although the poor dispersion of CNT in the composite, a 40% increase in hardness is obtained in the 1.0 wt% CNT agglomerates composite.

Language: English

Type (Professor's evaluation): Scientific