28
Figure 2.10 A translation antiphase boundary in the
Dla structure.
) vector ( )
is in the plane
/ 
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r o
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0
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o J
0
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Figure 2.11 An antiparallel
Dla structure.
FCC coordinates
The lattice translation
is 1/5 (130). This vector
of the figure.
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 \
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\ 
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o .
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\
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"""o \
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.  o
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, o
twin boundary in the
The twinning plane in
is the (200).