Corrosion products phase identification using micro-Raman and FTIR

0496987 - ÚTAM 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Majtás, Dušan - Mácová, Petra
Corrosion products phase identification using micro-Raman and FTIR.
METAL 2018. 27th International conference on metallurgy and materials. Conference proceedings. Ostrava: Tanger, 2018, s. 772-776. ISBN 978-80-87294-84-0.
[METAL 2018. International conference on metallurgy and materials /27./. Brno (CZ), 23.05.2018-25.05.2018]
Grant CEP: GA MŠMT(CZ) LO1219
GRANT EU: European Commission(XE) CZ.01.1.02/0.0/0.0/15_013/0004659
Klíčová slova: corrosion * micro-Raman spectroscopy * FTIR
Obor OECD: Coating and films

Phase identification of corroded metal objects might be problematic because corrosion products are usually a complex mixture of different phases. Furthermore, some of present phases may be either semi-crystalline or amorphous. The most suitable procedure is to use X-ray diffraction (XRD), for identification of crystalline phases in bulk, in combination with micro-Raman spectroscopy to obtain information on smaller scale and given location. Micro-Raman spectroscopy identifies crystalline and semi-crystalline phases. The literature also reports of the application of Mössbauer spectroscopy to identify amorphous phases. In this work, the combined use of Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy is evaluated. The methods may be interchangeable to some point. But is it safe to assume that all phases present can be detected?
Trvalý link: http://hdl.handle.net/11104/0290202