Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/138057
Title: | Ultralarge elastic deformation of nanoscale diamond | Authors: | Banerjee, Amit Bernoulli, Daniel Zhang, Hongti Yuen, Muk-Fung Liu, Jiabin Dong, Jichen Ding, Feng Lu, Jian Dao, Ming Zhang, Wenjun Lu, Yang Suresh, Subra |
Keywords: | Engineering::Materials | Issue Date: | 2018 | Source: | Banerjee, A., Bernoulli, D., Zhang, H., Yuen, M.-F., Liu, J., Dong, J., . . ., Suresh, S. (2018). Ultralarge elastic deformation of nanoscale diamond. Science, 360(6386), 300-302. doi:10.1126/science.aar4165 | Journal: | Science | Abstract: | Diamonds have substantial hardness and durability, but attempting to deform diamonds usually results in brittle fracture. We demonstrate ultralarge, fully reversible elastic deformation of nanoscale (~300 nanometers) single-crystalline and polycrystalline diamond needles. For single-crystalline diamond, the maximum tensile strains (up to 9%) approached the theoretical elastic limit, and the corresponding maximum tensile stress reached ~89 to 98 gigapascals. After combining systematic computational simulations and characterization of pre- and postdeformation structural features, we ascribe the concurrent high strength and large elastic strain to the paucity of defects in the small-volume diamond nanoneedles and to the relatively smooth surfaces compared with those of microscale and larger specimens. The discovery offers the potential for new applications through optimized design of diamond nanostructure, geometry, elastic strains, and physical properties. | URI: | https://hdl.handle.net/10356/138057 | ISSN: | 0036-8075 | DOI: | 10.1126/science.aar4165 | Schools: | School of Materials Science & Engineering | Rights: | © 2018 The Authors. All rights reserved. This paper was published in Science and is made available with permission of The Authors. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles |
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