Effect of milling variables on the synthesis of NiAl intermetallic compound by mechanical alloying

Autor(es)

Kubaski, E. T. ^[1] ; Cintho, O. M. ^[2] ; Capocchi, J. D. T. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Engn, Dept Met & Mat Engn, BR-05508900 Sao Paulo - Brazil

^[2] Univ Estadual Ponta Grossa, Dept Mat Engn, BR-84030900 Ponta Grossa, PR - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Powder Technology; v. 214, n. 1, p. 77-82, NOV 25 2011.
• Citações Web of Science: 18

Resumo

NiAl intermetallic compound was synthesized by mechanical alloying of elemental mixtures of Ni and Al powders in a Spex mill. The compound formation took place according to a mechanically induced self-propagating reaction (MSR), and the influence of milling variables on its ignition time was determined using a factorial design. Results indicated ignition time as a function of initial particle size of Ni, process control agent, and ball-to-powder ratio. Also, an interaction between ball-to-powder ratio, process control agent, and a set of balls was found to control the average particle size of as-milled powders. (c) 2011 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 07/50954-0 - Caracterizacao do composto nial obtido utilizando mecano-sintese.
• Beneficiário: Jose Deodoro Trani Capocchi
• Modalidade de apoio: Auxílio à Pesquisa - Regular