Biomedical Engineering Reference
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Fig. 6.12
Bright-field TEM
image of isolated carbon
particles (semi-crystalline)
embedded in a resin prepared
using ultramicrotomy,
showing: (1) tearing due to
the difference in hardness of
the spheres with the
embedding resin, (2)
microfissures in the spheres,
caused the compression due
to the blade followed by a
rupture of the material, (3) a
large knife ridge
perpendicular to the cracks
(
J. Ayache,
CNRS-UMR8126-IGR,
Vi l lejui f
)
Fig. 6.13
Bright-field TEM
image of a tin (
metal
)
particle, embedded and
prepared by ultramicrotomy,
showing: (1) parallel knife
ridges in the cutting direction
(
arrow
), (2) compression and
strain hardening of the
material highlighted by the
micro-undulations
perpendicular to the
sectioning direction (
arrow
)
(
D. Laub, EPFL - CIME
Lausanne
)
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