The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM)

doi:10.1016/j.msea.2018.09.094

Title: The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM)

Full Record
Other Related Research

Abstract

Interfaces and their interactions with other microstructural features, such as grain boundaries or twin structures, have been widely viewed as parameters for designing metallic nanolayers. These interfaces could play a role in hindering cracks from propagating across the nanolayers while in operation. To date, many studies have focused on the roles of interfaces in affecting the plasticity mechanisms and thus the deformability of nanolayers. However, no studies have investigated on the subsequent mechanisms of fracture leading to the final failure. In this study, in situ microfracture bending tests inside a scanning electron microscope (SEM) were performed on the notched clamped beams of Cu/Nb nanolayers with a similar layer thickness using two different fabrication processes: physical vapor deposition (PVD) and accumulative roll bonding (ARB). Due to the columnar grains of the Cu/Nb PVD beams, a sudden catastrophic linear elastic, brittle fracture phenomenon was observed; in the Cu/Nb ARB beams, fracture events of notch widening phase and crack initiation and fracture along the shear instability were observed. Detailed examinations showed the presence of competing mechanisms between the multilayered interface, columnar grain boundary, and experimental factors of beam geometry and the position of the tip. With this newfound knowledge, new types of metallicmore »« less

Authors:

Anwar Ali, Hashina Parveen ^[1];

^[1];

^[2]; Budiman, Arief ^[1]

Singapore Univ. of Technology and Design (SUTD) (Singapore)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: 2018-09-25

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1572338

Report Number(s):: LA-UR-19-29266
Journal ID: ISSN 0921-5093

Grant/Contract Number:: 89233218CNA000001; AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

Additional Journal Information:: Journal Volume: 738; Journal Issue: C; Journal ID: ISSN 0921-5093

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Multilayers; Fracture behavior; In situ beam bending; Plasticity mechanisms; Grains and interfaces

Citation Formats


                    Anwar Ali, Hashina Parveen, Radchenko, Ihor, Li, Nan, and Budiman, Arief. The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM).  United States: N. p., 2018. 
        Web.  doi:10.1016/j.msea.2018.09.094.

Copy to clipboard


                    Anwar Ali, Hashina Parveen, Radchenko, Ihor, Li, Nan, & Budiman, Arief. The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM).  United States.  doi:10.1016/j.msea.2018.09.094.

Copy to clipboard


                    Anwar Ali, Hashina Parveen, Radchenko, Ihor, Li, Nan, and Budiman, Arief. Tue .  
        "The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM)".  United States.  doi:10.1016/j.msea.2018.09.094.  https://www.osti.gov/servlets/purl/1572338.

Copy to clipboard


                    
@article{osti_1572338,

  title        = {The roles of interfaces and other microstructural features in Cu/Nb nanolayers as revealed by in situ beam bending experiments inside an scanning electron microscope (SEM)},

  author       = {Anwar Ali, Hashina Parveen and Radchenko, Ihor and Li, Nan and Budiman, Arief},

  abstractNote = {Interfaces and their interactions with other microstructural features, such as grain boundaries or twin structures, have been widely viewed as parameters for designing metallic nanolayers. These interfaces could play a role in hindering cracks from propagating across the nanolayers while in operation. To date, many studies have focused on the roles of interfaces in affecting the plasticity mechanisms and thus the deformability of nanolayers. However, no studies have investigated on the subsequent mechanisms of fracture leading to the final failure. In this study, in situ microfracture bending tests inside a scanning electron microscope (SEM) were performed on the notched clamped beams of Cu/Nb nanolayers with a similar layer thickness using two different fabrication processes: physical vapor deposition (PVD) and accumulative roll bonding (ARB). Due to the columnar grains of the Cu/Nb PVD beams, a sudden catastrophic linear elastic, brittle fracture phenomenon was observed; in the Cu/Nb ARB beams, fracture events of notch widening phase and crack initiation and fracture along the shear instability were observed. Detailed examinations showed the presence of competing mechanisms between the multilayered interface, columnar grain boundary, and experimental factors of beam geometry and the position of the tip. With this newfound knowledge, new types of metallic nanolayers can be designed with enhanced strength and fracture resistant properties.},

  doi          = {10.1016/j.msea.2018.09.094},

  journal      = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},

  number       = C,

  volume       = 738,

  place        = {United States},

  year         = {2018},

  month        = {9}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1016/j.msea.2018.09.094

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 3 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

In Situ Focused Ion Beam Scanning Electron Microscope Study of Microstructural Evolution of Single Tin Particle Anode for Li-Ion Batteries

Journal Article Zhou, Xinwei ; Li, Tianyi ; Cui, Yi ; ... - ACS Applied Materials and Interfaces

Tin (Sn) is a potential anode material for high-energy density Li-ion batteries because of its high capacity, safety, abundance and low cost. However, Sn suffers from large volume change during cycling, leading to fast degradation of the electrode. For the first time, the microstructural evolution of micrometer-sized single Sn particle was monitored by focused-ion beam (FIB) polishing and scanning electron microscopy (SEM) imaging during electrochemical cycling by in situ FIB-SEM. Our results show the formation and evolution of cracks during lithiation, evolution of porous structure during delithiation and volume expansion/contraction during cycling. The electrochemical performance and the microstructural evolution ofmore »« less
DOI: 10.1021/acsami.8b13981
Equilibrium Cu-Ag nanoalloy structure formation revealed by in situ scanning transmission electron microscopy heating experiments

Journal Article Lu, Ping, E-mail: plu@sandia.gov ; Chandross, Michael ; Boyle, Timothy J. ; ... - APL Materials

Using in situ scanning transmission electron microscopy heating experiments, we observed the formation of a 3-dimensional (3D) epitaxial Cu-core and Ag-shell equilibrium structure of a Cu-Ag nanoalloy. The structure was formed during the thermal interaction of Cu(∼12 nm) and Ag NPs(∼6 nm) at elevated temperatures (150–300 °C) by the Ag NPs initially wetting the Cu NP along its (111) surfaces at one or multiple locations forming epitaxial Ag/Cu (111) interfaces, followed by Ag atoms diffusing along the Cu surface. This phenomenon was confirmed through Monte Carlo simulations to be a nanoscale effect related to the large surface-to-volume ratio of the NPs.
DOI: 10.1063/1.4866052
Decomposition of $L a_{2 - x} S r_{x} Cu O_{4}$ into several $L a_{2} O_{3}$ phases at elevated temperatures in ultrahigh vacuum inside a transmission electron microscope

Journal Article Jeong, Jong Seok ; Wu, Wangzhou ; Topsakal, Mehmet ; ... - Physical Review Materials

Here, we report the decomposition of La _2–xSr _xCuO ₄ into La ₂O ₃ and Cu nanoparticles in ultrahigh vacuum, observed by in situ heating experiments in a transmission electron microscope. The analysis of electron diffraction data reveals that the phase decomposition process starts at about 150°C and is considerably expedited in the temperature range of 350°C–450°C. Two major resultant solid phases are identified as metallic Cu and La ₂O ₃ by electron diffraction, simulation, and electron energy-loss spectroscopy (EELS) analyses. With the aid of calculations, La ₂O ₃ phases are further identified to be derivatives of a fluorite structure—fluorite,more »« less
DOI: 10.1103/PhysRevMaterials.2.054801

Full Text Available
Transmission Electron Microscope In Situ Straining Technique to Directly Observe Defects and Interfaces During Deformation in Magnesium

Journal Article Morrow, Benjamin M. ; Cerreta, E. K. ; McCabe, R. J. ; ... - JOM. Journal of the Minerals, Metals & Materials Society

In-situ straining was used to study deformation behavior of hexagonal close-packed (hcp) metals.Twinning and dislocation motion, both essential to plasticity in hcp materials, were observed.Typically, these processes are characterized post-mortem by examining remnant microstructural features after straining has occurred. By imposing deformation during imaging, direct observation of active deformation mechanisms is possible. This work focuses on straining of structural metals in a transmission electron microscope (TEM), and a recently developed technique that utilizes familiar procedures and equipment to increase ease of experiments. In-situ straining in a TEM presents several advantages over conventional post-mortem characterization, most notably time-resolution of deformation andmore »« less
Cited by 3
DOI: 10.1007/s11837-015-1432-6

Full Text Available
From Microparticles to Nanowires and Back: Radical Transformations in Plated Li Metal Morphology Revealed via in Situ Scanning Electron Microscopy

Journal Article Yulaev, Alexander ; Oleshko, Vladimir ; Haney, Paul ; ... - Nano Letters

We report that Li metal is the preferred anode material for all-solid-state Li batteries. However, a stable plating and stripping of Li metal at the anode–solid electrolyte interface remains a significant challenge particularly at practically feasible current densities. This problem usually relates to high and/or inhomogeneous Li-electrode–electrolyte interfacial impedance and formation and growth of high-aspect-ratio dendritic Li deposits at the electrode–electrolyte interface, which eventually shunt the battery. To better understand details of Li metal plating, we use operando electron microscopy and Auger spectroscopy to probe nucleation, growth, and stripping of Li metal during cycling of a model solid-state Li batterymore »« less
Cited by 3
DOI: 10.1021/acs.nanolett.7b04518

Full Text Available

Similar Records