Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1611892 | Journal of Alloys and Compounds | 2014 | 7 Pages |
Abstract
Mechanical property measurements of single nanocones are challenging because the small scale of the nanostructures. In this study, critical-stress- and strain-induced structural variations of GaN nanocones are estimated using in situ transmission electron microscopy (TEM) compression experiments. For single GaN nanocones with a diameter of 100-350Â nm, the Young's modulus, plastic deformation energy (Wp), and elastic deformation energy (We) values were 190-290Â GPa, 0.02-1.65Â ÃÂ 10â11Â J, and 0.04-3.85Â ÃÂ 10â11Â J, respectively. Raman spectra were used to measure GaN indentation. The E2 peak was red-shifted, indicated increased compressive stress in the indented area.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shao-Hui Kang, Te-Hua Fang,