Fabrication of nanoporous copper surface by leaching of chill-zone Cu-Zr-Hf alloys

Daria Barsuk; Min Zhang; Nikolaos T. Panagiotopoulos; Alberto M. Jorge; Konstantinos Georgarakis; Alain R. Yavari

doi:10.1016/j.scriptamat.2015.03.026

Fabrication of nanoporous copper surface by leaching of chill-zone Cu-Zr-Hf alloys

Daria Barsuk, Min Zhang, Nikolaos T. Panagiotopoulos, Alberto M. Jorge, Konstantinos Georgarakis, Alain R. Yavari

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

In present work we report the synthesis of nanoporous surface using a copper-based alloy via leaching the less noble element-rich phase out of nanostructured ternary Cu-Hf-Zr alloys. The removal of Hf and Zr by mixed acid etchants in the chill-zone region of rapidly solidified ingots leads to the formation of a nano-roughened surface layer constituted of copper. The average pore and grain size of the obtained structure were shown to be less than 100 nm and 50 nm respectively.

Original language	English
Pages (from-to)	64-66
Number of pages	3
Journal	Scripta Materialia
Volume	104
DOIs	https://doi.org/10.1016/j.scriptamat.2015.03.026
Publication status	Published - 2015 Jul 15

Keywords

Chill-zone
Copper alloys
Eutectic solidification
Leaching
Nanoporous

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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Barsuk, D., Zhang, M., Panagiotopoulos, N. T., Jorge, A. M., Georgarakis, K., & Yavari, A. R. (2015). Fabrication of nanoporous copper surface by leaching of chill-zone Cu-Zr-Hf alloys. Scripta Materialia, 104, 64-66. https://doi.org/10.1016/j.scriptamat.2015.03.026

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AU - Barsuk, Daria

AU - Zhang, Min

AU - Panagiotopoulos, Nikolaos T.

AU - Jorge, Alberto M.

AU - Georgarakis, Konstantinos

AU - Yavari, Alain R.

PY - 2015/7/15

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AB - In present work we report the synthesis of nanoporous surface using a copper-based alloy via leaching the less noble element-rich phase out of nanostructured ternary Cu-Hf-Zr alloys. The removal of Hf and Zr by mixed acid etchants in the chill-zone region of rapidly solidified ingots leads to the formation of a nano-roughened surface layer constituted of copper. The average pore and grain size of the obtained structure were shown to be less than 100 nm and 50 nm respectively.

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KW - Eutectic solidification

KW - Leaching

KW - Nanoporous

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