The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

Autor Travessa, Dilermando Nagle Autor UNIFESP Google Scholar
Cardoso, Kátia Regina Autor UNIFESP Google Scholar
Wolf, Witor Google Scholar
Jorge Junior, Alberto Moreira Google Scholar
Botta, Walter José Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de São Carlos Departamento de Engenharia de Materiais
Resumo In order to obtain quasicrystalline (QC) phase by mechanical alloying (MA) in the Al-Cu-Fe system, mixtures of elementary Al, Cu and Fe in the proportion of 65-20-15 (at. %) were produced by high energy ball milling (HEBM). A very high energy type mill (spex) and short milling times (up to 5 hours) were employed. The resulting powders were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). QC phase was not directly formed by milling under the conditions employed in this work. However, phase transformations identified by DSC analysis reveals that annealing after HEBM possibly results in the formation of the ψ QC phase.
Palavra-chave Al-Cu-Fe system
mechanical alloying
quasicrystals
Idioma Inglês
Data de publicação 2012-10-01
Publicado em Materials Research. ABM, ABC, ABPol, v. 15, n. 5, p. 749-752, 2012.
ISSN 1516-1439 (Sherpa/Romeo, fator de impacto)
Publicador ABM, ABC, ABPol
Extensão 749-752
Fonte http://dx.doi.org/10.1590/S1516-14392012005000046
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000309191500009
SciELO S1516-14392012000500009 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/7364

Exibir registro completo




Arquivo

Nome: S1516-14392012000500009.pdf
Tamanho: 1.167MB
Formato: PDF
Descrição:
Abrir arquivo

Este item está nas seguintes coleções

Buscar


Navegar

Minha conta