In situ study of annealing-induced strain relaxation in diamond nanoparticles using Bragg coherent diffraction imaging
Abstract
We observed changes in morphology and internal strain state of commercial diamond nanocrystals during high-temperature annealing. Three nanodiamonds were measured with Bragg coherent x-ray diffraction imaging, yielding three-dimensional strain-sensitive images as a function of time/temperature. Up to temperatures of 800 °C, crystals with Gaussian strain distributions with a full-width-at-half-maximum of less than 8×10−4 were largely unchanged, and annealing-induced strain relaxation was observed in a nanodiamond with maximum lattice distortions above this threshold. X-ray measurements found changes in nanodiamond morphology at temperatures above 600 °C that are consistent with graphitization of the surface, a result verified with ensemble Raman measurements.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2017
- Source ID
- 10.1063/1.4974865
Entities
People
- A. Ulvestad
- C. P. Anderson
- D. D. Awschalom
- F. J. Heremans
- P. Andrich
- P. H. Fuoss
- R. Harder
- S. O. Hruszkewycz
- W. Cha
Organizations
- Argonne National Laboratory
- Office of Basic Energy Sciences
- United States Air Force
- University of Chicago