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Various TEM methods for the study of metal matrix composites
Author(s) -
Withers P. J.,
Stobbs W.M,
Bourdillon A. J.
Publication year - 1988
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 - 10.1111/j.1365-2818.1988.tb04622.x
Subject(s) - materials science , composite material , breakage , foil method , enhanced data rates for gsm evolution , fracture (geology) , matrix (chemical analysis) , composite number , metal , ceramic , amorphous solid , crystallography , computer science , metallurgy , chemistry , telecommunications
SUMMARY We have investigated the applicability of a number of TEM techniques for the study of the metal/ceramic interface in a short fibre metal matrix composite (SFMMC). In particular, we found that dark field techniques were best suited to the study of any possible (0.4‐2 nm) amorphous layer. High resolution imaging was found to be difficult to use because of the absence of well defined ‘edge‐on’ interfaces, but EELS with parallel recording was found to be very useful for finding and identifying segregated particles at the fibre/matrix interface. It was also shown that micro‐mechanisms of fracture such as voiding and fibre breakage could be readily examined by TEM using a foil preparation method which resulted in an ‘edge‐on’ fracture surface and an observation region extending about 0.8 mm below it.