Biomedical Engineering Reference
In-Depth Information
TABLE 5.1
Materials and Their Medical Uses—Cont'd
Class of Material
Current Uses
Chitin
Wound dressings, cell scaffold, drug delivery
Ceramics or demineralized ceramics
Bone graft substitute
Alginate
Drug delivery, cell encapsulation
Hyaluronic acid
Postoperative adhesion prevention, ophthalmic and orthopedic lubricant,
drug delivery, cell scaffold
TABLE 5.2
Mechanical Properties of Materials with Literature Values or Minimum Values from Standards
Yield MPa
UTS MPa
Deform %
Modulus GPa
Metals
High-strength carbon steel
1,600
2,000
7
206
F138
1
, annealed
170
480
40
200
F138, cold worked
690
860
12
200
F138, wire
—
1,035
15
200
F75
2
, cast
450
655
8
200
F799
3
, forged
827
1,172
12
200
F136
4
Ti64
795
860
10
105
Gold
2-300
30
97
Aluminum, 2024-T4
303
414
35
73
Polymers
PEEK
93
50
3.6
PMMA Cast
45-75
1.3
2-3
Acetal (POM)
65
40
3.1
UHMWPE
30
200
0.5
Silicone rubber
7
800
0.03
Ceramics
Alumina
400
0.1
380
Zirconia, Mg partially stabilized
634
200
Zirconia, Yttria stabilized
900
200
Carbons and composites
LTI pyrolytic carbon
þ
5-12% Si
600
2.0
30
PAN AS4 fiber
3,980
1.65
240
Continued
