Evaluation of alloying effect on the formation of Ni-Fe nanosized powders by pulsed wire discharge

Gyu Hyeon Park; Gwang Yeob Lee; Hyeon Ah Kim; A. Young Lee; Hye Ryeong Oh; Song Yi Kim; Do Hyang Kim; Min Ha Lee

doi:10.1016/j.mseb.2016.07.010

Evaluation of alloying effect on the formation of Ni-Fe nanosized powders by pulsed wire discharge

Gyu Hyeon Park, Gwang Yeob Lee, Hyeon Ah Kim, A. Young Lee, Hye Ryeong Oh, Song Yi Kim, Do Hyang Kim, Min Ha Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

This study investigates the effects of varying the explosion time and charging voltage of pulsed wire discharge (PWD) on the mean particle size, dispersibility and alloying reliability of powders produced from pure Ni and Ni-plated Fe wires. It was found that with increasing charging voltage, the mean particle size of Ni powders is reduced from 40.11 ± 0.23 to 25.63 ± 0.07 nm, which is attributed to a change in the extent of super heating with particle size. Nanosized powders of Ni-Fe alloy with a mean particle size between 25.91 ± 0.24 and 26.30 ± 0.26 nm were also successfully fabricated and found to consist of particles with a γ-(Ni/Fe) core and FeO shell. The reliability for the optimization of processing parameters to control particle sizes is also evaluated.

Original language	English
Pages (from-to)	24-29
Number of pages	6
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	212
DOIs	https://doi.org/10.1016/j.mseb.2016.07.010
Publication status	Published - 2016 Oct 1

Bibliographical note

Funding Information:
This work was supported by the Industrial Technology Innovation Program , as funded by the Ministry of Trade, Industry and Energy (MOTIE) through the Korea Institute of Technology Evaluation and Planning (KETEP), Republic of Korea (No.20142020103910). Additional support was provided by the Civil-Military Technology Cooperation Program under Contract No. 14-BR-MA-05 .

Publisher Copyright:
© 2016 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.mseb.2016.07.010

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title = "Evaluation of alloying effect on the formation of Ni-Fe nanosized powders by pulsed wire discharge",

abstract = "This study investigates the effects of varying the explosion time and charging voltage of pulsed wire discharge (PWD) on the mean particle size, dispersibility and alloying reliability of powders produced from pure Ni and Ni-plated Fe wires. It was found that with increasing charging voltage, the mean particle size of Ni powders is reduced from 40.11 ± 0.23 to 25.63 ± 0.07 nm, which is attributed to a change in the extent of super heating with particle size. Nanosized powders of Ni-Fe alloy with a mean particle size between 25.91 ± 0.24 and 26.30 ± 0.26 nm were also successfully fabricated and found to consist of particles with a γ-(Ni/Fe) core and FeO shell. The reliability for the optimization of processing parameters to control particle sizes is also evaluated.",

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doi = "10.1016/j.mseb.2016.07.010",

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AU - Park, Gyu Hyeon

AU - Lee, Gwang Yeob

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AU - Lee, A. Young

AU - Oh, Hye Ryeong

AU - Kim, Song Yi

AU - Kim, Do Hyang

AU - Lee, Min Ha

N1 - Funding Information: This work was supported by the Industrial Technology Innovation Program , as funded by the Ministry of Trade, Industry and Energy (MOTIE) through the Korea Institute of Technology Evaluation and Planning (KETEP), Republic of Korea (No.20142020103910). Additional support was provided by the Civil-Military Technology Cooperation Program under Contract No. 14-BR-MA-05 . Publisher Copyright: © 2016 Elsevier B.V.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - This study investigates the effects of varying the explosion time and charging voltage of pulsed wire discharge (PWD) on the mean particle size, dispersibility and alloying reliability of powders produced from pure Ni and Ni-plated Fe wires. It was found that with increasing charging voltage, the mean particle size of Ni powders is reduced from 40.11 ± 0.23 to 25.63 ± 0.07 nm, which is attributed to a change in the extent of super heating with particle size. Nanosized powders of Ni-Fe alloy with a mean particle size between 25.91 ± 0.24 and 26.30 ± 0.26 nm were also successfully fabricated and found to consist of particles with a γ-(Ni/Fe) core and FeO shell. The reliability for the optimization of processing parameters to control particle sizes is also evaluated.

AB - This study investigates the effects of varying the explosion time and charging voltage of pulsed wire discharge (PWD) on the mean particle size, dispersibility and alloying reliability of powders produced from pure Ni and Ni-plated Fe wires. It was found that with increasing charging voltage, the mean particle size of Ni powders is reduced from 40.11 ± 0.23 to 25.63 ± 0.07 nm, which is attributed to a change in the extent of super heating with particle size. Nanosized powders of Ni-Fe alloy with a mean particle size between 25.91 ± 0.24 and 26.30 ± 0.26 nm were also successfully fabricated and found to consist of particles with a γ-(Ni/Fe) core and FeO shell. The reliability for the optimization of processing parameters to control particle sizes is also evaluated.

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Evaluation of alloying effect on the formation of Ni-Fe nanosized powders by pulsed wire discharge

Abstract

Bibliographical note

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