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Abstract
Fine artificial graphite powders can be cold compacted to give bodies of high density (∼ 88% of theoretical), low permeability (B0 ∼10–14 cm2), and reasonable strength. Such powders, after vacuum annealing, will not compact.
Die-compacted powder has strongly anisotropic properties owing to a high degree of preferred orientation within the compact; this effect is less marked in hydrostatically compacted powder. Minor dimensional changes occur when compacts are annealed in the range 600-1000°C.
The preparation of fuels by incorporation of fissile and fertile materials into graphite powder and cold compacting is described.
Notes
* Manuscript received 13 January, 1960.