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Type: Artigo de periódico
Title: Compositional Evolution And Magnetic Properties Of Nanocrystalline Fe 73.5cu1nb3si13.5b9
Author: Knobel M.
Turtelli R.S.
Rechenberg H.R.
Abstract: Melt-spun FeCuNbSiB ribbons were annealed at 540-550°C for various times (≤1 h). The development of a nanocrystalline structure was investigated by means of Mössbauer spectroscopy. From measured hyperfine fields and intensities the crystalline phase was inferred to be pure Fe 1-xSix, with x=0.18 after 1 h annealing. The residual amorphous volume fraction was determined to be ≅50%. With help of these results it has been possible to evaluate the amorphous contribution to magnetostriction in the nanocrystalline state. The development of a nanocrystalline structure was found to play a role in the main mechanisms of magnetic disaccommodation.
Rights: aberto
Identifier DOI: 10.1063/1.350455
Date Issue: 1992
Appears in Collections:Unicamp - Artigos e Outros Documentos

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