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Low Frequency Raman Spectra of Silica Aerogels with Double Fractal Structure
Author(s) -
Hinić I.I.,
Stanis̆ić G.M.,
Kajtez S.B.,
Popović Z.V.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200206)231:2<349::aid-pssb349>3.0.co;2-7
Subject(s) - fractal , raman spectroscopy , merge (version control) , aerogel , materials science , sintering , spectral line , fracton , composite material , mineralogy , analytical chemistry (journal) , optics , chemistry , mathematics , chromatography , physics , mathematical analysis , computer science , astronomy , information retrieval
Silica aerogel samples with double fractal structure were synthesized. The samples were sintered at 1000 °C in different time intervals. In low frequency Raman spectra of the sintered samples, we observed two fractons caused by localization of vibration on clusters of two fractal substructures. During sintering the two fractal substructures become dense and, after 16 h of sintering, merge one into another.