Geoscience Reference
In-Depth Information
Figure 10.66 SEM photographs of the
surfaces of titanium plates coated with HAp
at (a) pH 4, (b) pH 5, and (c) pH 6
[288]
.
changes once inside the body and causes the implant to crumble and fail. In addi-
tion, any sintering aid must promote weak binding between the HA whiskers and
monolith in order to improve toughness by allowing fibers to pull free under
stress.
Researchers selected a very broad range of potential sintering aids that shared the
same constituents as hard tissues and bioactive glasses. These were narrowed down by
analyzing their phase diagrams and physicochemical properties, then tested in 5 wt%
