Influence of three-dimensional nanoparticle branching on the Young’s modulus of nanocomposites: Effect of interface orientation
Abstract
Significance Currently, the effect of branching of nanoparticles tens of nanometers in size on the mechanical properties of structural composites is not well understood due to the limited availability of branched nanoscale fillers. We report that branched nanofillers have the potential for optimization of nanocomposite Young’s modulus over their linear counterparts. Lattice spring model simulations reveal that the mechanism for this improvement involves the ability of branched nanoparticles to optimize the ratio of both filler and stiff interfacial bonds aligned with the tensile axis, as opposed to linear nanoparticles, which optimize only the filler bond orientation when parallel to the stretching axis. We believe this information could inform the design of nanocomposites with optimized mechanical properties for a variety of structural applications.
- Authors:
-
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720,, Departments of bMaterials Science and Engineering,
- Chemistry,
- Chemical Engineering, and
- Mechanical Engineering, University of California, Berkeley, CA 94720, and
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720,, Departments of bMaterials Science and Engineering,, Mechanical Engineering, University of California, Berkeley, CA 94720, and
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720,, Departments of bMaterials Science and Engineering,, Chemistry,
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720,, Departments of bMaterials Science and Engineering,, Chemical Engineering, and, Kavli Energy NanoScience Institute, Berkeley, CA 94720
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1235179
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 112 Journal Issue: 21; Journal ID: ISSN 0027-8424
- Publisher:
- Proceedings of the National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Raja, Shilpa N., Olson, Andrew C. K., Limaye, Aditya, Thorkelsson, Kari, Luong, Andrew, Lin, Liwei, Ritchie, Robert O., Xu, Ting, and Alivisatos, A. Paul. Influence of three-dimensional nanoparticle branching on the Young’s modulus of nanocomposites: Effect of interface orientation. United States: N. p., 2015.
Web. doi:10.1073/pnas.1421644112.
Raja, Shilpa N., Olson, Andrew C. K., Limaye, Aditya, Thorkelsson, Kari, Luong, Andrew, Lin, Liwei, Ritchie, Robert O., Xu, Ting, & Alivisatos, A. Paul. Influence of three-dimensional nanoparticle branching on the Young’s modulus of nanocomposites: Effect of interface orientation. United States. https://doi.org/10.1073/pnas.1421644112
Raja, Shilpa N., Olson, Andrew C. K., Limaye, Aditya, Thorkelsson, Kari, Luong, Andrew, Lin, Liwei, Ritchie, Robert O., Xu, Ting, and Alivisatos, A. Paul. Wed .
"Influence of three-dimensional nanoparticle branching on the Young’s modulus of nanocomposites: Effect of interface orientation". United States. https://doi.org/10.1073/pnas.1421644112.
@article{osti_1235179,
title = {Influence of three-dimensional nanoparticle branching on the Young’s modulus of nanocomposites: Effect of interface orientation},
author = {Raja, Shilpa N. and Olson, Andrew C. K. and Limaye, Aditya and Thorkelsson, Kari and Luong, Andrew and Lin, Liwei and Ritchie, Robert O. and Xu, Ting and Alivisatos, A. Paul},
abstractNote = {Significance Currently, the effect of branching of nanoparticles tens of nanometers in size on the mechanical properties of structural composites is not well understood due to the limited availability of branched nanoscale fillers. We report that branched nanofillers have the potential for optimization of nanocomposite Young’s modulus over their linear counterparts. Lattice spring model simulations reveal that the mechanism for this improvement involves the ability of branched nanoparticles to optimize the ratio of both filler and stiff interfacial bonds aligned with the tensile axis, as opposed to linear nanoparticles, which optimize only the filler bond orientation when parallel to the stretching axis. We believe this information could inform the design of nanocomposites with optimized mechanical properties for a variety of structural applications.},
doi = {10.1073/pnas.1421644112},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 21,
volume = 112,
place = {United States},
year = {Wed May 13 00:00:00 EDT 2015},
month = {Wed May 13 00:00:00 EDT 2015}
}
https://doi.org/10.1073/pnas.1421644112
Web of Science
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