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Chapitre D'ouvrage Année : 2012

Raman mapping for the investigation of nanophased materials

Résumé

Nanosized and nanophased materials exhibit special properties. First they offer a good compromise between the high density of chemical bonds by unit volume , needed for good mechanical properties and the homogeneity of amorphous materials that prevents crack initiation. Second, interfaces are in very high concentration and they have a strong influence on many electrical and redox properties. The analysis of nanophased, low crystallinity materials is not straigtforward. The recording of Raman spectra with a geometric resolution close to 0.5 µm 3 and the deep understanding of the Raman signature allow to locate the different nanophases and to predict the properties of the material. Case studies are discussed: advanced polymer fibres, ceramic fibres and composites, textured piezoelectric ceramics and corroded (ancient) steel.
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Dates et versions

hal-01865079 , version 1 (30-08-2018)

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Gwenaël Gouadec, Ludovic Bellot-Gurlet, Denis Baron, Philippe Colomban. Raman mapping for the investigation of nanophased materials. Zoubir A. Raman imaging. Techniques and Applications, 168, Springer, pp.85-118, 2012, Springer Series in Optical Sciences, 978-3-642-28251-5. ⟨10.1007/978-3-642-28252-2_3⟩. ⟨hal-01865079⟩
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