Biomedical Engineering Reference
In-Depth Information
TABLE 1.11
Porous Structures and Mechanical Properties of Porous Bioceramics Produced by Different Techniques
Closed (C) or
Open (O)
Compressive/Flexural
Strength (MPa)
Technique
Materials
Porosity (%)
Pore Size (
µ
m)
References
Powder forming-sintering
Dry process with porogens
Hydroxyapatite
NA
Varying between 40 and 100
C
NA
166
Hydroxyapatite
67
250-400
O
205
45S5 Bioglass
21
42
200-300
80
C
C
163
206
69
Phase separation/
freeze-drying
Al
2
O
3
30-60
∼
50 in width, 300-500 in
length
O
NA
170
Replication technique/coated by
Slurry-immersion
Al
2
O
3
TiO
2
Glass-reinforced HA
Hydroxyapatite
HA coated by PLGA
Bioglass
87
74
85-97.5
69-86
69-86
>
90
Up to 800
385-700
Average size 420-560
490-1130
490-1130
400-800
O
O
O
O
O
O
NA
169
165
185
173
173
80
0.01-0.175
0.03-0.29
0.31-4.03
0.4-0.5
Electrospray
Al
2
O
3
96
∼
800
O
175
