Graphite interlayer

We observed in some cases coaxial arrangement of the outermost and an inner tube. The outer tube may be terminated and the adjacent inner one is imaged si-multaneously[4]. We measure an interlayer spacing of 3.4 A, which is about the graphite interlayer distance (3.35 A). 

These morphological changes (hill and blister formation) were attributed to the intercalation of solvated lithium ion into graphite interlayers and to the accumulation of its decomposition products (some of them gases), respectively. On the other hand, rapid exfoliation and rupturing of graphite layers were observed in ImolL-1... 

Nickel is one of the few materials possessing a close lattice match with diamond. However, its high carbon solubility and strong catalytic effect on hydrocarbon decomposition may be the reason that graphite layers develop on Ni substrates under the typical diamond CVD conditions. This effect impedes the direct nucleation of diamond on Ni substrates and excludes the eventual development of an orientational relationship between the diamond films and the Ni substrates, although diamond may eventually nucleate and grow on the graphite interlayers. 

FIGURE 29.3 XRD pattern of partially purified UC2 nanocapsules. The highest double peak corresponds to capsules and graphite interlayer spacings. The ampUfied zone between 42° and 46° evidences the layer stacking order different than in graphite. 

Zircaloy bearing pads Canlub graphite interlayer Uranium dioxide pellets... 

A thin CANLUB graphite interlayer between the U02 pellets and Zircaloy cladding, which has eliminated fuel failures due to power ramping under normal... 

Fig. 10.4. Fuel bundle for CANDU reactor (courtesy of Atomic Energy of Canada Limited). 1, Zircaloy bearing pads 2, Zircaloy fuel sheath 3, Zircaloy end cap 4, Zircaloy end support plate 5, uranium dioxide pellets 6, canlub graphite interlayer 7, interelement spacers 8, pressure tube.

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