Kim, Ju-Young and Greer, Julia R. (2008) Size-dependent mechanical properties of molybdenum nanopillars. Applied Physics Letters, 93 (10). Art. No. 101916. ISSN 0003-6951 http://resolver.caltech.edu/CaltechAUTHORS:KIMapl08
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Abstract
We report the deformation behavior of single crystalline molybdenum nanopillars in uniaxial compression, which exhibits a strong size effect called the “smaller is stronger” phenomenon. We show that higher strengths arise from the increase in the yield strength rather than through postyield strain hardening. We find the yield strength at nanoscale to depend strongly on sample size and not on the initial dislocation density, a finding strikingly different from that of the bulk metal.
| Item Type: | Article |
|---|---|
| Additional Information: | ©2008 American Institute of Physics. Received 1 July 2008; accepted 16 August 2008; published 12 September 2008. |
| Subject Keywords: | deformation, dislocations, molybdenum, nanostructured materials, solid structure, work hardening, yield strength |
| Record Number: | CaltechAUTHORS:KIMapl08 |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:KIMapl08 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 11698 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Archive Administrator |
| Deposited On: | 20 Sep 2008 01:24 |
| Last Modified: | 26 Dec 2012 10:18 |
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