Highly oriented massive pyrolytic carbons were acnealed at, 2900-3300ยฐC to produce apparent crystalline heights (L,) ranging from 220 A to 1660 A. Transmission electron microscopy showed that annealing progressively increased the crystallite width, while the height between twist boundaries was littl
107. Effects of high-temperature neutron irradiation on highly oriented carbons and graphites
โ Scribed by R.J Price
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 103 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
observed etch-patterns seem to have no relation with the dislocation content of the crystals. The imphcations are discussed.
๐ SIMILAR VOLUMES
Highly oriented samples of well graphitised pyrolytic graphite have been irradiated to doses of 2.5 X 102\* n.v.t. (Dido Equivalent Dose) at temperatures between 250ยฐC and 470ยฐC. Measurements have been made of the changes in dimensions parallel and perpendicular to the deposition planes, density, t
Changes in crystal lattice parameter, c-axis lattice strain and apparent crystallite height induced by neutron irradiation at 72G135O"C were investigated by means of X-ray diffraction for fourteen specimens which included five bands of nuclear graphite and two kinds of pyrolytic graphite. All irrad