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Investigation of the evaporation of graphite in high‐voltage vacuum discharge: The formation mechanism of carbon clusters
Author(s) -
Cornides I.,
Morvay L.
Publication year - 1992
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290061209
Subject(s) - chemistry , graphite , polyatomic ion , evaporation , carbon fibers , tracer , molecule , analytical chemistry (journal) , kinetics , ion , chemical physics , chemical engineering , thermodynamics , organic chemistry , composite material , physics , materials science , quantum mechanics , composite number , nuclear physics , engineering
The applications of kinetics calculations to determine the size distribution of C n clusters formed from the vaprized material of graphite requires aknowlledge of the initial composition of the carbon vapour. By a 13 C iisotope tracer experiment it is shown that a considerable part of the C n molecules in the case of n⩾3 evaporate directly as polyatomic fragments of the crystal structure of graphite, while the other, probably the greater part, is formed in the vapour. A more quantitative evalution of the experimental data is to be attempted later.