A carbon ribbon has been produced from a polyimide film whose microstructure can be varied by the degree of restraint or stretch during pyrolysis. The microstructure was varied from a coarse lamellar structure to a welldefined lamellar structure typical of a highly ordered graphite. Increasing the d
125. Carbon layer ordering in the graphite nitrates
โ Scribed by D.E. Nixon; G.S. Parry; A.R. Ubbelohde
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- English
- Weight
- 124 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
CoZZege, London, England). Room temperature X-ray diffraction studies have been made on graphite nitrates carefully formed by direct attack of nitric acid vapour on synthetic near-ideal graphite. The carbon hexagon networks exhibit well defined stacking sequences which apart (from the fully oxidised compound) are more complex than was previously reported. Detailed investigation of compounds of the first four sequences yield the following structural information :
Sequence
Stacking Sequence# Space Group c-axis repeat distances
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