✦ LIBER ✦

Micro-Raman study of SiC fibre-oxide matrix reaction

✍ Scribed by S. Karlin; Ph. Colomban

Book ID: 104404345
Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 730 KB
Volume: 29
Category: Article
ISSN: 1359-8368
DOI: 10.1016/s1359-8368(97)00015-2

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✦ Synopsis

Micro-Raman analysis is a non-destructive technique used to provide information on the compressive/tensile strain applied to a fibre embedded in a ceramic matrix composite. Carefull analysis of this information helps to understand the physical-chemical evolution of the fibre. Example of continuous SiC Nicalon ® fibres reinforcing various ceramic matrices (mullite, NASICON) shows how the comparison between fibre core and fibre periphery spectra--using wavenumber, bandwidth and intensity--provides independant tools to check the fibre evolution and to distinguish thermally and chemically induced transformations.

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