Mechanical properties of crystalline Cu/Zr and crystal-amorphous Cu/Cu-Zr multilayers

J. Y. Zhang; Y. Liu; J. Chen; Y. Chen; G. Liu; X. Zhang; J. Sun

doi:10.1016/j.msea.2012.05.056

Mechanical properties of crystalline Cu/Zr and crystal-amorphous Cu/Cu-Zr multilayers

J. Y. Zhang
, Y. Liu
, J. Chen
, Y. Chen
, G. Liu
, X. Zhang
, J. Sun

School of Materials Science and Engineering

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

103 Scopus citations

Abstract

We compare the indentation hardness of crystal/crystal (C/C) Cu/Zr multilayers and the crystal/amorphous (C/A) Cu/Cu-Zr multilayers with equal individual layer thicknesses spanning from 1 to 200. nm. Both systems show similar layer thickness dependent evolution of hardness. At smaller layer thickness the C/C multilayers show softening, while no softening is observed in the C/A multilayers. The layer thickness dependent hardness is quantitatively estimated by using dislocation models. The significance of crystalline (Zr) layer and amorphous (Cu-Zr) layer on plastic deformation mechanisms is discussed.

Original language	English
Pages (from-to)	392-398
Number of pages	7
Journal	Materials Science and Engineering: A
Volume	552
DOIs	https://doi.org/10.1016/j.msea.2012.05.056
State	Published - 30 Aug 2012

Keywords

Crystalline/amorphous multilayers
Crystalline/crystalline multilayers
Hardness
Interface

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10.1016/j.msea.2012.05.056

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title = "Mechanical properties of crystalline Cu/Zr and crystal-amorphous Cu/Cu-Zr multilayers",

abstract = "We compare the indentation hardness of crystal/crystal (C/C) Cu/Zr multilayers and the crystal/amorphous (C/A) Cu/Cu-Zr multilayers with equal individual layer thicknesses spanning from 1 to 200. nm. Both systems show similar layer thickness dependent evolution of hardness. At smaller layer thickness the C/C multilayers show softening, while no softening is observed in the C/A multilayers. The layer thickness dependent hardness is quantitatively estimated by using dislocation models. The significance of crystalline (Zr) layer and amorphous (Cu-Zr) layer on plastic deformation mechanisms is discussed.",

keywords = "Crystalline/amorphous multilayers, Crystalline/crystalline multilayers, Hardness, Interface",

author = "Zhang, \{J. Y.\} and Y. Liu and J. Chen and Y. Chen and G. Liu and X. Zhang and J. Sun",

year = "2012",

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doi = "10.1016/j.msea.2012.05.056",

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journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Mechanical properties of crystalline Cu/Zr and crystal-amorphous Cu/Cu-Zr multilayers

AU - Zhang, J. Y.

AU - Liu, Y.

AU - Chen, J.

AU - Chen, Y.

AU - Liu, G.

AU - Zhang, X.

AU - Sun, J.

PY - 2012/8/30

Y1 - 2012/8/30

N2 - We compare the indentation hardness of crystal/crystal (C/C) Cu/Zr multilayers and the crystal/amorphous (C/A) Cu/Cu-Zr multilayers with equal individual layer thicknesses spanning from 1 to 200. nm. Both systems show similar layer thickness dependent evolution of hardness. At smaller layer thickness the C/C multilayers show softening, while no softening is observed in the C/A multilayers. The layer thickness dependent hardness is quantitatively estimated by using dislocation models. The significance of crystalline (Zr) layer and amorphous (Cu-Zr) layer on plastic deformation mechanisms is discussed.

AB - We compare the indentation hardness of crystal/crystal (C/C) Cu/Zr multilayers and the crystal/amorphous (C/A) Cu/Cu-Zr multilayers with equal individual layer thicknesses spanning from 1 to 200. nm. Both systems show similar layer thickness dependent evolution of hardness. At smaller layer thickness the C/C multilayers show softening, while no softening is observed in the C/A multilayers. The layer thickness dependent hardness is quantitatively estimated by using dislocation models. The significance of crystalline (Zr) layer and amorphous (Cu-Zr) layer on plastic deformation mechanisms is discussed.

KW - Crystalline/amorphous multilayers

KW - Crystalline/crystalline multilayers

KW - Hardness

KW - Interface

UR - https://www.scopus.com/pages/publications/84863008170

U2 - 10.1016/j.msea.2012.05.056

DO - 10.1016/j.msea.2012.05.056

M3 - 文章

AN - SCOPUS:84863008170

SN - 0921-5093

VL - 552

SP - 392

EP - 398

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Mechanical properties of crystalline Cu/Zr and crystal-amorphous Cu/Cu-Zr multilayers

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Keywords

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