Fig. 3: TEM characterization of samples recovered from different P-T conditions. | Nature Communications

Fig. 3: TEM characterization of samples recovered from different P-T conditions.

From: Enhancement of short/medium-range order and thermal conductivity in ultrahard sp3 amorphous carbon by C70 precursor

Fig. 3: TEM characterization of samples recovered from different P-T conditions.The alternative text for this image may have been generated using AI.

a–c HRTEM images of samples recovered from 30 GPa and 1100 °C (AC70-1) (a) 27 GPa and 1200 °C (AC70-2) (b) and 18 GPa and 1100 °C (AC70-7) (c). Inserts show the corresponding SAED patterns collected from the same regions. d The inverse FFT image of the area marked with an orange box in (a). e The inverse FFT image of sp3 amorphous carbon (AC-3) synthesized from C60 (ref. 29). The regions marked with yellow circles and squares in d and e represent the CD-like and HD-like clusters, respectively. f Content statistics of diamond-like MRO clusters in sp3 amorphous carbon samples synthesized from C60 and C70. Error bars indicate statistical analysis for three different areas, standard deviations. Gra disordered graphite, AC amorphous carbon, NCD nanocrystalline diamond.

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