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Title: On the origins of hardness of Cu–TiN nanolayered composites

Abstract

We investigated the mechanical response of physical vapor deposited Cu–TiN nanolayered composites of varying layer thicknesses from 5 nm to 200 nm. Both the Cu and TiN layers were found to consist of single phase nanometer sized grains. The grain sizes in the Cu and TiN layers, measured using transmission electron microscopy and X-ray diffraction, were found to be comparable to or smaller than their respective layer thicknesses. Indentation hardness testing revealed that the hardness of such nanolayered composites exhibits a weak dependence on the layer thickness but is more correlated to their grain size.

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [3];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Swiss Federal Labs for Materials Science and Technology, Thun (Switzerland)
  3. 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 Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1227667
Alternate Identifier(s):
OSTI ID: 1251494
Report Number(s):
LA-UR-15-25383
Journal ID: ISSN 1359-6462; PII: S1359646215002985
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 109; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; multilayers; hardness; grain size; layer thickness

Citation Formats

Pathak, S., Li, N., Maeder, X., Hoagland, R. G., Baldwin, J. K., Michler, J., Misra, A., Wang, J., and Mara, N. A.. On the origins of hardness of Cu–TiN nanolayered composites. United States: N. p., 2015. Web. doi:10.1016/j.scriptamat.2015.07.015.
Pathak, S., Li, N., Maeder, X., Hoagland, R. G., Baldwin, J. K., Michler, J., Misra, A., Wang, J., & Mara, N. A.. On the origins of hardness of Cu–TiN nanolayered composites. United States. https://doi.org/10.1016/j.scriptamat.2015.07.015
Pathak, S., Li, N., Maeder, X., Hoagland, R. G., Baldwin, J. K., Michler, J., Misra, A., Wang, J., and Mara, N. A.. Sat . "On the origins of hardness of Cu–TiN nanolayered composites". United States. https://doi.org/10.1016/j.scriptamat.2015.07.015. https://www.osti.gov/servlets/purl/1227667.
@article{osti_1227667,
title = {On the origins of hardness of Cu–TiN nanolayered composites},
author = {Pathak, S. and Li, N. and Maeder, X. and Hoagland, R. G. and Baldwin, J. K. and Michler, J. and Misra, A. and Wang, J. and Mara, N. A.},
abstractNote = {We investigated the mechanical response of physical vapor deposited Cu–TiN nanolayered composites of varying layer thicknesses from 5 nm to 200 nm. Both the Cu and TiN layers were found to consist of single phase nanometer sized grains. The grain sizes in the Cu and TiN layers, measured using transmission electron microscopy and X-ray diffraction, were found to be comparable to or smaller than their respective layer thicknesses. Indentation hardness testing revealed that the hardness of such nanolayered composites exhibits a weak dependence on the layer thickness but is more correlated to their grain size.},
doi = {10.1016/j.scriptamat.2015.07.015},
journal = {Scripta Materialia},
number = C,
volume = 109,
place = {United States},
year = {Sat Jul 18 00:00:00 EDT 2015},
month = {Sat Jul 18 00:00:00 EDT 2015}
}

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Cited by: 21 works
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Works referencing / citing this record:

Elevated and cryogenic temperature micropillar compression of magnesium–niobium multilayer films
journal, May 2019