Figure 2: Elastic constant measurement.
From: Observation of higher stiffness in nanopolycrystal diamond than monocrystal diamond
(a) Brillouin-oscillation waveforms for various diamond specimens, and (b) corresponding Fourier spectra. (c) Longitudinal-wave elastic constant of all the specimens. Cbulk denotes the elastic constant calculated by Migliori et al.20 values. Error bars represent s.d. among independent measurements at 5–10 different points on each specimen. CVD(100) epi., CVD diamond epitaxially grown on (100) monocrystal diamond.
