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Phase identification in composite materials by EELS fine‐structure analysis
Author(s) -
SCHNEIDER R.,
WOLTERSDORF J.,
LICHTENBERGER O.
Publication year - 1996
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.1996.73073.x
Subject(s) - borosilicate glass , nanometre , silicon , materials science , composite number , matrix (chemical analysis) , phase (matter) , composite material , carbon fibers , covalent bond , chemical bond , hot pressing , mineralogy , metallurgy , chemistry , organic chemistry
Microanalytical results obtained from two SiC‐fibre‐reinforced borosilicate glasses with hot‐pressing temperatures of about 1373 and 1543 K show that for nanometre‐sized regions a detailed phase analysis with respect to the chemical bonding of a certain element is possible by investigating energy‐loss near‐edge structures (ELNES). Examples are presented of the bonding state of silicon as revealed by analysing the Si‐L 23 ELNES, which generally varies from predominantly carbidic in the fibre to oxidic in the matrix. In addition, content and type of silicon‐containing phases inside carbon‐rich interlayers, usually arising between fibre and matrix owing to chemical reactions, are characterized.