Paper Title:
Zr-Rich Phases in Sm(CoFeCuZr)z Magnets
  Abstract

Sm(CoFeCuZr)z commercial magnets are manufactured by powder metallurgy techniques. Microstructural investigations of Sm(CoFeCuZr)z magnets have shown that, increasing the Zr content, some impurity phases may appear. An alloy with composition (at%): 60.5% Co – 15.5% Fe – 11.5% Zr - 8.5% Sm - 4% Cu, homogenized at 1050oC, was investigated. Three main phases were identified: rhombohedral 1:3 (ZrSm)1(CoFeCu)3, hexagonal 1:7 (SmZr)1(CoFeCu)7 and cubic 6:23 (Zr)6(CoFe)23. Knowledge of possible phases present in 2:17-type magnets allows a better understanding of the nanocrystalline microstructure responsible for high coercivity of these magnets.

  Info
Periodical
Materials Science Forum (Volumes 530-531)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
158-163
DOI
10.4028/www.scientific.net/MSF.530-531.158
Citation
M. F. de Campos, S.A. Romero, A.C. Neiva, J. T. Filho, L. R. Lidizio, H. R. Rechenberg, F.P. Missell, "Zr-Rich Phases in Sm(CoFeCuZr)z Magnets", Materials Science Forum, Vols. 530-531, pp. 158-163, 2006
Online since
November 2006
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Price
$32.00
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