Abstract
The mechanical response of crystalline boron nanowires was studied with the mechanical resonance method and tensile testing. The mechanical resonances of cantilevered boron nanowires were excited and their frequencies were used to obtain the Young's modulus of the nanowires, according to simple beam theory. The influence of non-ideal boundary conditions on the nanowire's resonance frequency was investigated and is presented. Tensile loading measurements on boron nanowires were performed to obtain the fracture strength and Young's modulus. The modulus values from tensile tests are consistent with the set of values obtained from the mechanical resonance tests.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1112-1124 |
| Number of pages | 13 |
| Journal | Composites Science and Technology |
| Volume | 66 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jul 2006 |
Funding
This work was funded by NSF EEC-0210120, and in part by ONR #N000140210870 (partial support, W. Ding) and by the NASA BIMat URETI # NCC-1-02037 (support for X Chen). The SEM and TEM work was performed in the EPIC facility of NUANCE Center at Northwestern University. The NUANCE Center is supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of Illinois, and Northwestern University. We appreciate receiving the boron nanowires from C. Otten (Buhro group, Washington University, St. Louis).
Keywords
- A. Nanostructures
- B. Fracture
- B. Mechanical properties
- B. Strength
- B. Vibration
ASJC Scopus subject areas
- Ceramics and Composites
- General Engineering