Observations of apparent effects of fabrication variables on the measured thermal shock resistance and associated thermal and mechanical properties of a number of graphites are reported. Both commercial graphites and experimental graphites were examined. \*Research sponsored by U.S. Atomic Energy Co
โฆ LIBER โฆ
Lattice thermal expansion perpendicular to the layer planes of pyrocarbons produced in a fluidized bed
โ Scribed by G Pellegrini
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 486 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0008-6223
No coin nor oath required. For personal study only.
โฆ Synopsis
The lattice thermal expansion perpendicular to the layer planes of various pyrocarbon structures produced in a fluidized bed has been measured over the temperature range lO"C-1200ยฐC. It was found that the thermal expansion of this type of material is structure sensitive. The average expansion coefficient c+ over the considered temperature range varied from 18 X IO-" for structures deposited at 1650ยฐC with small crystallites and low density, up to 24 X 10m6 for pyrocarbons deposited at 2100ยฐC with an apparent crystallite size of 150 tki and a relatively high density.
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