Abstract
The Young's modulus of zinc oxide nanowires was measured to be significantly lower than bulk zinc oxide, which cannot be explained within the framework of existing theories. We propose that the strong electromechanical coupling in piezoelectric materials, such as zinc oxide, influences the measured mechanical properties. The asymmetric wurtzite crystal structure and the ionic nature of the molecular bonding result in internal electric fields during straining of the zinc oxide nanowire, which in turn lead to reduction in the measured modulus. In case of flexural deformation, additional electromechanical coupling is present due to the flexoelectric effect.
| Original language | English (US) |
|---|---|
| Title of host publication | 2008 Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC 2008 |
| Pages | 553-559 |
| Number of pages | 7 |
| Volume | 4 |
| State | Published - 2009 |
| Event | 2008 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC 2008 - New York City, NY, United States Duration: Aug 3 2008 → Aug 6 2008 |
Other
| Other | 2008 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC 2008 |
|---|---|
| Country/Territory | United States |
| City | New York City, NY |
| Period | 8/3/08 → 8/6/08 |
All Science Journal Classification (ASJC) codes
- Artificial Intelligence
- Computational Theory and Mathematics
- Industrial and Manufacturing Engineering
- Mechanical Engineering