Determining misorientation of graphite grains from the angular dependence of X-ray emission spectra

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776106100128· OSTI ID:21067628

Belavin, V V; Bulusheva, L G ^[1]; Kotosonov, A S ^[2]; Vyalykh, D V; Molodtsov, S L ^[3]

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1. Russian Academy of Sciences, Nikolaev Institute of Inorganic Chemistry, Siberian Division (Russian Federation)
2. NIIGrafit (Russian Federation)
3. Dresden University of Technology, Institute of Solid State Physics (Germany)

Angular-resolved X-ray absorption spectra were measured for pyrolytic graphite samples of various quality. A new approach to determining the misorientation of graphite grains in polycrystalline samples is proposed, which is based on calculations of the angular dependence of the relative intensity of a peak corresponding to the {pi}* state for a normal distribution of grains. The experimental values are used to construct theoretical angular dependences using partial densities of the {pi}* and {sigma}* states determined from the nonempirical calculations for graphite.

• OSTI ID: 21067628
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 4 Vol. 103; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTRIBUTION
EMISSION SPECTRA
GRAPHITE
POLYCRYSTALS
X-RAY SPECTRA