This paper reports the application of a self-consistent integral equation technique to the calculation of the elastic constants of polycrystalline graphite. The self-consistent expressions used in this paper are restricted to spherical grains and pores and neglect correlation among grains and pores.
63. Self-consistent theory of thermal expansion and of elastic properties of polycrystalline graphite
β Scribed by R.E Smith
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 137 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
ABSTRACTS
were obtained that correspond to other carbon crystal forms. In addition, patterns are obtained that do not correspond to any of the known carbon allotropes.
61. Laser Raman studies on carbons
M. Nakamizo and R. Kammereck (Department of Materials Sciences, Pennsylvania State lJniversi& University Park, Pewzsylvunia). Laser Raman studies were carried out on natural graphite, pyrolytic graphite, glassy carbon, carbon black, sputtered carbon and 'white carbon* produced by a high power laser illumination. All of these carbon materials show two Raman lines at 1580 cm-' and 1355 cm-', except highly crystalline graphite which gives only the 1580 cm-' band. An additional Raman band at 2140 cm+ was detected in 'white carbon' produced from natural and pyrolytic graphite.
62. Strain effects on diffraction profiles on carbons
S. Ergun (Spectra-
π SIMILAR VOLUMES
A parameter-free model based on molecular mechanics with zero Kelvin potentials is developed to describe quantitatively the shortening of the unit cell of polyethylene crystals in chain direction with increasing temperature. Based on the well-known conception that an increase of the amplitudes of th