Biomedical Engineering Reference
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ent parts and the core of the FGM. No agglomerates and defects were observed
in the sintered FGM disc. The Al
2
O
3
grain growth limiting effect of the presence
of the ZrO
2
phase is clearly illustrated by comparing the alumina grain size in the
homogeneous pure alumina outer layer with all other regions in the FGM.
100
95
90
85
80
75
Measured profile
Predicted profile
70
65
60
0
1
2
3
4
5
Sintered distance (mm)
Figure 10.7.
Measured and predicted FGM profi le of Al
2
O
3
/ZrO
2
FGM disc. [Anné, 2005a].
Figure 10.8.
General overview and some detailed micrographs of specifi c locations in the
FGM disc. [Anné, 2005a].
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