Compressive flow behavior of Cu thin films and Cu/Nb multilayers containing nanometer-scale helium bubbles

N. Li; N. A. Mara; Y. Q. Wang; M. Nastasi; A. Misra

doi:10.1016/j.scriptamat.2011.02.001

Compressive flow behavior of Cu thin films and Cu/Nb multilayers containing nanometer-scale helium bubbles

N. Li
, N. A. Mara
, Y. Q. Wang
, M. Nastasi
, A. Misra

Los Alamos National Laboratory

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

92 Scopus citations

Abstract

Focused-ion-beam machined compression specimens were used to investigate the effect of nanometer-scale helium bubbles on the strength and deformability of sputter-deposited Cu and Cu/Nb multilayers with different layer thickness. The flow strength of Cu films increased by more than a factor of 2 due to helium bubbles but in multilayers, the magnitude of radiation hardening decreased with decreasing layer thickness. When the layer thickness decreases to 2.5 nm, insignificant hardening and no measurable loss in deformability is observed after implantation.

Original language	English
Pages (from-to)	974-977
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2011.02.001
State	Published - May 1 2011

Access to Document

10.1016/j.scriptamat.2011.02.001

Cite this

@article{7da213d8c9734e5eb1c98299198ed03c,

title = "Compressive flow behavior of Cu thin films and Cu/Nb multilayers containing nanometer-scale helium bubbles",

abstract = "Focused-ion-beam machined compression specimens were used to investigate the effect of nanometer-scale helium bubbles on the strength and deformability of sputter-deposited Cu and Cu/Nb multilayers with different layer thickness. The flow strength of Cu films increased by more than a factor of 2 due to helium bubbles but in multilayers, the magnitude of radiation hardening decreased with decreasing layer thickness. When the layer thickness decreases to 2.5 nm, insignificant hardening and no measurable loss in deformability is observed after implantation.",

author = "N. Li and Mara, \{N. A.\} and Wang, \{Y. Q.\} and M. Nastasi and A. Misra",

year = "2011",

month = may,

day = "1",

doi = "10.1016/j.scriptamat.2011.02.001",

language = "English",

volume = "64",

pages = "974--977",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

number = "10",

}

TY - JOUR

T1 - Compressive flow behavior of Cu thin films and Cu/Nb multilayers containing nanometer-scale helium bubbles

AU - Li, N.

AU - Mara, N. A.

AU - Wang, Y. Q.

AU - Nastasi, M.

AU - Misra, A.

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Focused-ion-beam machined compression specimens were used to investigate the effect of nanometer-scale helium bubbles on the strength and deformability of sputter-deposited Cu and Cu/Nb multilayers with different layer thickness. The flow strength of Cu films increased by more than a factor of 2 due to helium bubbles but in multilayers, the magnitude of radiation hardening decreased with decreasing layer thickness. When the layer thickness decreases to 2.5 nm, insignificant hardening and no measurable loss in deformability is observed after implantation.

AB - Focused-ion-beam machined compression specimens were used to investigate the effect of nanometer-scale helium bubbles on the strength and deformability of sputter-deposited Cu and Cu/Nb multilayers with different layer thickness. The flow strength of Cu films increased by more than a factor of 2 due to helium bubbles but in multilayers, the magnitude of radiation hardening decreased with decreasing layer thickness. When the layer thickness decreases to 2.5 nm, insignificant hardening and no measurable loss in deformability is observed after implantation.

UR - https://www.scopus.com/pages/publications/79952536561

U2 - 10.1016/j.scriptamat.2011.02.001

DO - 10.1016/j.scriptamat.2011.02.001

M3 - Article

SN - 1359-6462

VL - 64

SP - 974

EP - 977

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Compressive flow behavior of Cu thin films and Cu/Nb multilayers containing nanometer-scale helium bubbles

Abstract

Access to Document

Fingerprint

Cite this