The strength of gold nanowire forests

R. Dou; B. Derby

doi:10.1016/j.scriptamat.2008.02.046

The strength of gold nanowire forests

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

Abstract

We have studied the compression yield strength of gold nanowire forests, with wire diameters in the range 30-80 nm, fabricated by electrodeposition into porous alumina templates. The yield strength as a function of wire diameter continues to follow the trend reported for larger Au columns, with the yield stress of 30 nm diameter columns exceeding 1.4 GPa. No significant work-hardening is observed at plastic strains up to 30%. Deformed nanowires show surface steps consistent with the nucleation of dislocations and their escape from the surface. © 2008 Acta Materialia Inc.

Original language	English
Pages (from-to)	151-154
Number of pages	3
Journal	Scripta Materialia
Volume	59
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2008.02.046
Publication status	Published - Jul 2008

Keywords

Nanoindentation
Nanowires
Plastic deformation

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10.1016/j.scriptamat.2008.02.046

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title = "The strength of gold nanowire forests",

abstract = "We have studied the compression yield strength of gold nanowire forests, with wire diameters in the range 30-80 nm, fabricated by electrodeposition into porous alumina templates. The yield strength as a function of wire diameter continues to follow the trend reported for larger Au columns, with the yield stress of 30 nm diameter columns exceeding 1.4 GPa. No significant work-hardening is observed at plastic strains up to 30%. Deformed nanowires show surface steps consistent with the nucleation of dislocations and their escape from the surface. {\textcopyright} 2008 Acta Materialia Inc.",

keywords = "Nanoindentation, Nanowires, Plastic deformation",

author = "R. Dou and B. Derby",

note = "Dou, R. Derby, B. 18 PERGAMON-ELSEVIER SCIENCE LTD OXFORD 317RK",

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PY - 2008/7

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N2 - We have studied the compression yield strength of gold nanowire forests, with wire diameters in the range 30-80 nm, fabricated by electrodeposition into porous alumina templates. The yield strength as a function of wire diameter continues to follow the trend reported for larger Au columns, with the yield stress of 30 nm diameter columns exceeding 1.4 GPa. No significant work-hardening is observed at plastic strains up to 30%. Deformed nanowires show surface steps consistent with the nucleation of dislocations and their escape from the surface. © 2008 Acta Materialia Inc.

AB - We have studied the compression yield strength of gold nanowire forests, with wire diameters in the range 30-80 nm, fabricated by electrodeposition into porous alumina templates. The yield strength as a function of wire diameter continues to follow the trend reported for larger Au columns, with the yield stress of 30 nm diameter columns exceeding 1.4 GPa. No significant work-hardening is observed at plastic strains up to 30%. Deformed nanowires show surface steps consistent with the nucleation of dislocations and their escape from the surface. © 2008 Acta Materialia Inc.

KW - Nanoindentation

KW - Nanowires

KW - Plastic deformation

U2 - 10.1016/j.scriptamat.2008.02.046

DO - 10.1016/j.scriptamat.2008.02.046

M3 - Article

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EP - 154

JO - Scripta Materialia

JF - Scripta Materialia

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ER -

The strength of gold nanowire forests

Abstract

Keywords

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