Biomedical Engineering Reference
In-Depth Information
T p
PW Ti10
T g
glass Ti-10
T o
T p
T g
T o
glass Ti-0
PW Ti0
200
300
400
500
600
700
800
900
Temperature ( ° C)
Figure 4.9 DSC traces of two phosphate invert glasses showing glass transi-
tion temperature ( T g ), crystallisation onset temperature ( T o ) and crystallisation
peak temperature ( T p ) and the processing window (PW). Glass Ti-10 shows a larger
processing window than glass Ti-0 due to strong ionic cross-linking by Ti 4 + .
150
145
140
135
130
125
120
0
20
40
Sr for Ca substitution (%)
60
80
100
Figure 4.10 Processing window (temperature difference between crystallisation
onset, T o , and glass transition, T g ) versus Sr for Ca substitution in the glass.
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