CNT-aluminum metal matrix nanocomposites

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2012

Autores

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

Ata de Conferência Internacional

Título: ECCM15

ECCM15 - 15TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS

Venice, Italy, 24-28 June

Indexação

ISI Web of Knowledge

Scopus - 3 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de materiais

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica