Biomedical Engineering Reference
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(a)
(b)
60
Ti-52
Ti-52
Ti-45
50
Nb-42
Nb-38
Nb-44
40
Ti-40
Nb-33
Nb-33
Ti-43
Ti-38
Nb-36
Ti-33
30
ZrL
NbL
TiK
TaL
20
Ta-20
Ta-17
Ta-14
Ta-9
Ta-9
Ta-16
Ta-15
10
Zr-4
Zr-4
Zr-3
Zr-3
Zr-7
Zr-5
Zr-7
0
0
2
4
6
Distance
8
10
12
Figure 9.20.
(a) High magnifi cation backscatter SEM image of a single primary boride in the
LENS™ as-deposited TNZT + 2B alloy exhibiting a strong contrast within the boride. (b) EDS
compositional profi le across the white line, shown in (a), distinguishing the contrast within the
boride arising from a compositional modulation with regions richer in Nb and Ta exhibiting
a brighter contrast while regions relatively richer in Ti and Zr exhibiting a darker contrast in
the backscatter SEM image. [Sonia Samuel et al.
Wear
Resistance of Laser Deposited Boride
Reinforced Ti
-
Nb
-
Zr
-
Ta Alloy Composites for
Orthopedic Implants
(to appear in Mater. Sci.
Eng. C, 2007)]
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