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author:

Xu, J. (Xu, J..) [1] | Gao, J. (Gao, J..) [2] | Qin, H. (Qin, H..) [3] | Liu, Z. (Liu, Z..) [4] | Zhu, L. (Zhu, L..) [5] | Geng, H. (Geng, H..) [6] | Yao, L. (Yao, L..) [7] | Zhao, Z. (Zhao, Z..) [8]

Indexed by:

Scopus

Abstract:

Cu nanowires and a nanoporous Ag matrix were fabricated through directional solidification and selective dissolution of Ag–Cu eutectic alloys. Ag-39.9at.%Cu eutectic alloys were directionally solidified at growth rates of 14, 25, and 34 μm/s at a temperature gradient of 10 K/cm. The Cu phase in the Ag matrix gradually changed from lamellar to fibrous with an increase in the growth rate. The Ag matrix phase was selectively dissolved, and Cu nanowires of 300–600 nm in diameter and tens of microns in length were prepared in 0.1 M borate buffer with a pH of 9.18 at a constant potential of 0.7 V (vs. SCE). The nanoporous Ag matrix was fabricated through selective dissolution of Cu fiber phase in 0.1 M acetate buffer with a pH of 6.0 at a constant potential of 0.5 V (vs. SCE). The diameter of Ag pores decreased with increasing growth rate. The diameter and depth of Ag pores increased when corrosion time was extended. The depth of the pores was 30 μm after 12 h. © 2022 by the authors.

Keyword:

Ag–Cu eutectic alloys Cu nanowires directional solidification nanoporous Ag matrix selective dissolution

Community:

  • [ 1 ] [Xu, J.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Gao, J.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Gao, J.]State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
  • [ 4 ] [Qin, H.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 5 ] [Liu, Z.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Zhu, L.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 7 ] [Geng, H.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 8 ] [Yao, L.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 9 ] [Zhao, Z.]State Key Laboratory of Solidification Technology, Northwestern Polytechnical University, Xi’an, 710072, China

Reprint 's Address:

  • [Gao, J.]School of Mechanical Engineering and Automation, China

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Source :

Materials

ISSN: 1996-1944

Year: 2022

Issue: 22

Volume: 15

3 . 4

JCR@2022

3 . 1 0 0

JCR@2023

ESI HC Threshold:91

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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