A calculation is presented of the hexagonal axis thermal expansion coefficient of a graphite crystal up to 1000ยฐK using the measured values of two of the three anharmonic coefficients which affect the out-of-plane acoustic vibrational mode. The third anharmonic coefficient (&/ae,,), which is determi
The high temperature thermal expansion of graphite parallel to the hexagonal axis
โ Scribed by B.T. Kelly
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 322 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0008-6223
No coin nor oath required. For personal study only.
โฆ Synopsis
A calculation is made of the effects on the hexagonal axis thermal expansion coefficient of a graphite crystal of the changes in the interlayer forces due to the large inter-layer expansions. It is found that the expansion coefficient is significantly increased at temneratures above 800ยฐK and that the magnitudes of the experimental increases up to 3bOO"K can be readily accounted for.
๐ SIMILAR VOLUMES
Los Angelse, California). An investigation has been undertaken to understand the mode of failure of graphites as a function of their microstructure and to correlate the experimental observations with a theory of failure based on the coincidence alignment of microstructural defects. SEM observations