Fig. 3: Raman spectra and indicator developments of CNTs in pristine condition and after tribological testing. | npj Materials Degradation

Fig. 3: Raman spectra and indicator developments of CNTs in pristine condition and after tribological testing.

From: Degradation analysis of tribologically loaded carbon nanotubes and carbon onions

Fig. 3: Raman spectra and indicator developments of CNTs in pristine condition and after tribological testing.

Raman spectra of a pristine CNTs and CNTs after tribological testing on b HD, c ID, and d LD surfaces, including standard deviation of spectral intensities (red area). Development of e ID/IG, AD/AG, XG f IG’/ID, AG’/AD, AG’/AG and g WD, WG, WG’ with increasing structural depth (error bars represent standard deviation from three independent measurements).

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