The elastic anisotropy of chemical vapor deposition (CVD) polycrystalline diamond films was analyzed. Acoustic spectroscopy and micromechanics modeling were used to study elastic anisotropy in the diamond films. The CVD diamond films showed five independent elastic constants and exhibited elastic anisotropy between the in-plane direction and the film-growth direction. The results show that local incomplete cohesion was responsible for the small elastic constants and anisotropy of the film.
ASJC Scopus subject areas
- Physics and Astronomy(all)