Biomedical Engineering Reference
In-Depth Information
Yield (N/m
2
)
<900
>900
Figure 8.7
Example materials merit graph.
1000
Technical
Ceramics
Alumina
=10
CFRP
Steels
100
Composites
Ti Alloys
=1.0
Metals
10
Natural
Materials
E/
=0.1
PEEK
1
=0.01
Polymers
0.1
Leathers
0.01
0.1
1
10
100
Density (tonne/m
3
)
Figure 8.8
Example of an “Ashby type” merits indices graph indicating some common medical devices
materials.
(Source:
Ashby, 2004
)
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