The characterization of property changes in various grades of near-isotropic, "binderless" grades of graphite as functions of fluence accumulated at 715ยฐC from 0 to 42 x 10" neutrons/cm' (E > 50 keV) was made. Generally, the average coefficients of thermal expansion (CTE) from 20 to 600ยฐC and the ro
37. Pores structure effects in radiolytic oxidation of graphite
โ Scribed by J.V. Best; A.J. Wickham; C.J. Wood
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 128 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
upon Tyne, New castle upon Tyne, NE1 7RU, England). The kinetics of gasification by molecular oxygen of a heat treatment series (1200-3200ยฐK) of a graphitizing carbon prepared from polyvinyl acetate have been studied in the temperature range 750-1000ยฐK. A correspondence between the activation energy for the reaction and the residual hydrogen content of the carbon was observed, the hydrogen ,apparently acting in a catalytic role. 36. The effect of heat-treatment on the reaction of a porous carbon with carbon dioxide B.
๐ SIMILAR VOLUMES
The effect of oxidation on the pore structure of two different graphitized carbons has been investigated. Graphon and P33 were subjected to oxidation to achieve various extents of bum-off and the pore structure of each sample was subsequently examined using the techniques of low temperature adsorpti
A study has been made of the effect of radiolytic oxidation by carbon dioxide on the porosity of 'A' grade pile graphite ('P.G.A.') and also a material of lower initial porosity designated CPsRsG. Use of in-pile rigs operated at 735 lb/in\* (gauge) enables weight losses up to 29% to be obtained. Res