Biomedical Engineering Reference
In-Depth Information
Force curve ( 0.5 N, HNO
3
)
Force curve (0.5 N, H
2
SO
4
)
8
8
6
6
4
4
2
2
0
0
0
10
20
30
40
0
5
10
15
20
25
30
35
Time (sec)
Time (sec)
FIGURE 4.128
Force curve under 0.5
N
of HNO
3
(left) and H
2
SO
4
(right).
Force curve (1N, HNO
3
)
Force curve (1N, H
2
SO
4
)
8
8
6
6
4
4
2
2
0
0
0
10
20
30
40
50
0
10
20
30
40
Time (sec)
Time (sec)
FIGURE 4.129
Force curve under 0.5
N
of HNO
3
(left) and H
2
SO
4
(right).
Fatigue confirmation test (1N, HNO
3
)
Force curve (1N, HCl)
6
7
6
5
5
4
4
3
3
2
2
1
1
0
0
0
10
20
30
40
50
0 5 10 15 20 25 30 35
Time (sec)
Time (sec)
FIGURE 4.130
Fatigue confirmation test with 1
N
HCl (left) and 1
N
HNO
3
(right) after
sulfuric and nitric acid test.
4.6.13.1
Mechanical Property of Single PAN Fiber
A tensile testing machine to measure a single PAN fiber, as shown in figure 4.131,
was designed and built. A stand holds a load cell from the top and a single PAN
