Biomedical Engineering Reference
In-Depth Information
Figure 9.61
EDAX analysis of the Ti-glass nanocomposites after etching
in 1M H
3
PO
4
+ 2% HF at 10 V for 15 (a), 30 (b), and (60 min)
[31].
9.2.4 Ti-BasedNanoalloys
The Ti-6Al-4V was one from the irstly used Ti-based biomedical
alloys. This alloy shows good mechanical and chemical properties,
respective for implant applications [1, 9, 26, 83].
Ti-based alloys generally have excellent properties, but for
the hard tissue replacement application, an additional surface
treatment improving surface roughness is required. Bulk Ti-6Al-
4V microcrystalline alloy was used for the etching as a reference
material. As a new approach Jakubowicz and Adamek [29] applied
mechanical alloying for the preparation of the nanocrystalline
alloy, followed by pressing, sintering, and electrochemical etching,
respective for the surface roughening. In the mechanical alloying,
pure elements Ti, Al, and V with particle size of about 300 mesh were
mechanically milled in protective high-purity argon atmosphere
