Biomedical Engineering Reference
In-Depth Information
Table 9.4 Physical-mechanical properties of SC polymer-ceramic
nanocomposites
Composite
Weight ratio
of ceramic
and binder
Deformation
method
Temperature
of deform-
ation (K)
σ (MPa) Е (MPa)
ε (%)
SHMPE +Y
1
Ba
2
Cu
3
O
6.92
85:15
85:15
85:15
Elongation
300
193
77
30
60
100
100
80
—
10.0
1.0
0.1
RPE +Y
1
Ba
2
Cu
3
O
6.92
80:20
Elongation
300
15
75-80
9.0-10.0
F-40 +Y
1
Ba
2
Cu
3
O
6.92
75:25
Elongation
300
32
150
7.2
i-PB+Y
1
Ba
2
Cu
3
O
6.92
80:20
Elongation
300
28
100-110 8.3
PVA+ Irganox +
Y
1
Ba
2
Cu
3
O
6.92
85:20
Elongation
300
34
130
7.5
9.7
Elongation curves for Y
1
Ba
2
Cu
3
O
6.97
nanocomposites with SHMPE
obtained at ambient (a) and liquid nitrogen (b) temperatures. Ceramic:
binder weight ratio is 85:15 [26].
filling ratio at ambient temperatures, the samples have a region of high
elasticity (Fig. 9.7(a)). In contrast, distention of the samples at 77K brings
about brittle decomposition of the samples in the Hooke's deformity region,
where the elongation of SC polymer-ceramic nanocomposites only reaches
0.1%.
9.4.1 Influence of particle size and degree of filling on the
mechanical and SC properties of polymer-ceramic
nanocomposites
In order to understand the process of formation and properties of filled
polymeric materials, it is important to investigate their resistance
characteristics, as dependent on the average size of particles, the nature of
