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Title: Interface-Driven Plasticity in Metal–Ceramic Nanolayered Composites: Direct Validation of Multiscale Deformation Modeling via In Situ Indentation in TEM

Abstract

Here, we present in situ indentation in a transmission electron microscope on Al-TiN multilayers with individual layer thicknesses of 50 nm and 2.7 nm to explore the effect of length scales on the plastic co-deformability of a metal and a ceramic. At 50 nm, plasticity was confined to the Al layers with brittle fracture in the TiN layers. At 5 nm and below, cracking in TiN was suppressed with co-deformation evident in both layers. The in situ transmission electron microscopy (TEM) straining results demonstrate a profound size effect in enhancing plastic co-deformability in nanoscale metal-ceramic multilayers, as well as direct validation of ex situ and 3-D elastic–plastic deformation models.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1492603
Report Number(s):
LA-UR-15-26360
Journal ID: ISSN 1047-4838
Grant/Contract Number:  
89233218CNA000001; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 68; Journal Issue: 1; Journal ID: ISSN 1047-4838
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science; plastic deformation; metal-ceramic interface; in situ TEM

Citation Formats

Mara, Nathan Allan, Li, Nan, Misra, Amit, and Wang, Jian. Interface-Driven Plasticity in Metal–Ceramic Nanolayered Composites: Direct Validation of Multiscale Deformation Modeling via In Situ Indentation in TEM. United States: N. p., 2015. Web. doi:10.1007/s11837-015-1542-1.
Mara, Nathan Allan, Li, Nan, Misra, Amit, & Wang, Jian. Interface-Driven Plasticity in Metal–Ceramic Nanolayered Composites: Direct Validation of Multiscale Deformation Modeling via In Situ Indentation in TEM. United States. doi:10.1007/s11837-015-1542-1.
Mara, Nathan Allan, Li, Nan, Misra, Amit, and Wang, Jian. Tue . "Interface-Driven Plasticity in Metal–Ceramic Nanolayered Composites: Direct Validation of Multiscale Deformation Modeling via In Situ Indentation in TEM". United States. doi:10.1007/s11837-015-1542-1. https://www.osti.gov/servlets/purl/1492603.
@article{osti_1492603,
title = {Interface-Driven Plasticity in Metal–Ceramic Nanolayered Composites: Direct Validation of Multiscale Deformation Modeling via In Situ Indentation in TEM},
author = {Mara, Nathan Allan and Li, Nan and Misra, Amit and Wang, Jian},
abstractNote = {Here, we present in situ indentation in a transmission electron microscope on Al-TiN multilayers with individual layer thicknesses of 50 nm and 2.7 nm to explore the effect of length scales on the plastic co-deformability of a metal and a ceramic. At 50 nm, plasticity was confined to the Al layers with brittle fracture in the TiN layers. At 5 nm and below, cracking in TiN was suppressed with co-deformation evident in both layers. The in situ transmission electron microscopy (TEM) straining results demonstrate a profound size effect in enhancing plastic co-deformability in nanoscale metal-ceramic multilayers, as well as direct validation of ex situ and 3-D elastic–plastic deformation models.},
doi = {10.1007/s11837-015-1542-1},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 1,
volume = 68,
place = {United States},
year = {2015},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 15 works
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Figures / Tables:

Figure 1 Figure 1: TEM images of the as-deposited films with the individual layer thickness (a) 50 nm and (b) 5 nm. [28]

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.