LOW FREQUENCY RAMAN STUDY OF THE HARMONIC VIBRATIONAL MODES IN SILICA AEROGELS | Zendy

J.L. Sauvajol | Zendy; J. Pelous | Zendy; Thierry Woignier | Zendy; R. Vacher | Zendy

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LOW FREQUENCY RAMAN STUDY OF THE HARMONIC VIBRATIONAL MODES IN SILICA AEROGELS

Author(s) -

J.L. Sauvajol,

J. Pelous,

Thierry Woignier,

R. Vacher

Publication year - 1989

Publication title -

le journal de physique colloques

Language(s) - English

Resource type - Journals

eISSN - 2777-3418

pISSN - 0449-1947

DOI - 10.1051/jphyscol:1989427

Subject(s) - raman spectroscopy , harmonic , materials science , molecular vibration , low frequency , acoustics , optics , physics , computer science , telecommunications

The vibrational properties of silica aerogels are investigated by low frequency Raman spectrometry. The mean feature of the spectra is a characteristic peak related to the vibrational mode of the constitutive particles. The influence of initial catalysis conditions and densification by heat treatment are investigated. The harmonic character of these modes is demonstrated by studying the temperature dependence of the spectrum

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