Structural changes in Ceylon natural graphite with grinding were studied by &man spectroscopy along with X-ray diffraction. The natural graphite shows a single Kaman band at 1580cm-', but the ground graphite samples exhibit two Raman bands at 1360 and 1620 cm-' in addition to the 1580 cm-' graphite
96/00300 Raman spectra of coal-based graphite
- Publisher
- Elsevier Science
- Year
- 1996
- Weight
- 190 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0140-6701
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Raman spectrum of the graphite edge plane is different from that of the cleaved basal plane because the 1355 cm-' and 1620 cm-' bands are clearly observed. These spectral features of the edge plane have been interpreted to be due to the structural imperfection caused by polishing. In the present wor
Raman spectra of graphite fibers intercalated with K, Rb and Cs are reported. X-Ray diffraction is used to characterize the fibers with respect to staging. We report results mainly for GY70, a highly graphitic commercially available fiber, which is polyacrylonitrile (PAN) based, and some results on
## I51 sive wrinkling and corrugation. A disclination model seems to apply to the core of round filaments, the transitions from round to cracked structures imply disclination interactions along the length of the filament. 236. The textile prestretching of PAN-fibres as a controlling parameter for