and exhibit no pronounced peaks. In contrast, the graphites having crystallites which possess good threedimensional order have a large, rather broad internal friction peak near room temperature, The height of this peak varies from 50 to 1 IO x IO4 depending upon crystallite size and the previous the
130. Tensile creep rate studies on pyrolytic carbon
โ Scribed by D.B Fischbach
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 112 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0008-6223
No coin nor oath required. For personal study only.
โฆ Synopsis
are considerably under-estimated.
This difficulty must be understood before defect structure calculations can be carried out adequately for graphite. The Morse potential yields a much larger anharmonic coefficient than is deduced from thermal expansion measurements.
๐ SIMILAR VOLUMES
new method for forming isotropic, laminar, and columnar pyrolytic carbons is proposed. For this, a low RPM (below 2.4rpm) tumbling bed has been used to deposit pyrolytic carbons from hydrocarbon gases. All deposits were made on graphite substrates from propane and methane at a constant temperature o
## A~~~-Various types of pyrolytic carbons obtained by acetylene pyrolysis at 1273 K were heat treated for 0.5 hr at 1623, 1973,2323,2673 and 3273 K. These carbons showed distinctly different ~aphit~biiity, decreasing in the order: compact, feathery, brittle, spongy and soot-like carbon. On the gr