Study on Positron Annihilation Lifetime of Amorphous Alloy Fe73.5Cu1Nb3Si13.5B9 by Magnetic Pulse Treated

Yan Hui Zhang; Yue Sheng Chao; Yue Gu; Xiao Peng Hao; Bao Yi Wang; Lin Zhang

doi:10.4028/www.scientific.net/AMR.873.60

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 873Study on Positron Annihilation Lifetime of...

Study on Positron Annihilation Lifetime of Amorphous Alloy Fe_73.5Cu₁Nb₃Si_13.5B₉ by Magnetic Pulse Treated

Abstract:

The effect of magnetic pulse treatments on Fe_73.5Cu₁Nb₃Si_13.5B₉ amorphous alloy prepared by melt-spun technique is investigated. The structural defects of the treated specimens are investigated by position annihilation lifetime spectra. The results show that amorphous alloy Fe_73.5Cu₁Nb₃Si_13.5B₉ have two kinds of free volume. One is Bernal vacancy-like which is characterized by less than an atomic volume, Another is void-like defect. Under the applied pulsed magnetic field, the annihilation lifetime and the relative intensity of treated specimens is decrease because the crystallization phase separate out from the amorphous matrix. The relative intensity I₂ is increase because the larger free volumes appear at grain boundary of Cu and Nb enrichment area.

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Periodical:

Advanced Materials Research (Volume 873)

Pages:

60-62

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.873.60

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Online since:

December 2013

Authors:

Yan Hui Zhang*, Yue Sheng Chao, Yue Gu, Xiao Peng Hao, Bao Yi Wang, Lin Zhang

Keywords:

Amorphous Alloy, Fe_73.5Cu₁Nb₃Si_13.5B₉, Magnetic Pulse, Positron Annihilation Lifetime

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