Biomedical Engineering Reference
In-Depth Information
BIOMATERIALS
BIOCERAMICS
BIOMETALS ORGANIC BIOMATERIALS
BIOCERAMICS
CHEMICALLY BONDED
SINTERED CERAMICS
GLASSES
CERAMICS
CHEMICALLY BONDED BIOCERAMICS(CBBCs)
BODY TEMPERATURE CBBCs
HIGH TEMPERATURE CBBCs
BODY TEMPERATURE CBBCs
ACID-BASE
WATER UP-TAKE
POLYMERISATION
REACTION
REACTION
Figure 13.1
Classification of bioceramics.
Nanostructural CBBCs are mainly found within the acid-base-
related materials. The base is predominantly found within silicates
(C2S and C3S) and aluminates (CA, C12A7, and C3A) with water as
the weak acid [3, 4]. For sulphates and phosphates both typical acid-
base reactions and a more direct water uptake reaction are possible
[5]. Geopolymers can be produced at low temperatures as well as at
high temperatures by a combination of different inorganic units in
a polymerisation process. At low temperatures amorphous phases
appear [6].
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