Figure 4
From: Ultrahard stitching of nanotwinned diamond and cubic boron nitride in C2-BN composite
Evidence for sp3-hybridized C-B and C-N in nanocomposite C2-BN.
(a) HRTEM image of C2-BN (b) EELS taken from C2-BN along the suture between diamond and cBN domains. EELS data were collected with a beam approximately 1 × 1 nm in size. Symbols π* and σ* correspond to sp2 and sp3 bonding, respectively. (c–e) XPS spectra of B, C and N 1s core levels, respectively. The spectra (red circles) are deconvolved (colored curves) by Gaussian fitting.
