A Transforming Metal Nanocomposite with Large Elastic Strain, Low Modulus, and High Strength
- 8 March 2013
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 339 (6124), 1191-1194
- https://doi.org/10.1126/science.1228602
Abstract
S-T-R-E-T-C-H Me: Most metals show elastic strain limits well below 1%, beyond which permanent plastic deformation occurs. Metal nanowires can be elastically stretched to much higher strains, on the order of 4 to 7%. However, when placed inside a metal matrix to form a composite, these nanowires can no longer be stretched to the same extent, even when the nanowires are well distributed and show good bonding with the matrix. Hao et al. (p. 1191 ; see the Perspective by Zhou ) used a shape memory alloy as the matrix material to produce a much better (more elastic) composite.Keywords
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