Organ of human body


Advantages and disadvantages of metallic Biomaterials



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Advantages and disadvantages of metallic Biomaterials:
Advantages
High strength.
High hardness.
Fatigue and impact resistance.
Wear resistance.
Easy fabrication.
Easy to sterilize.
Shape memory. inert
Disadvantages
High modulus.
High corrosion.
Metal ion sensitivity and toxicity.
High density.
Metals and their alloys are widely used as biomedical materials. On one hand,
metallic biomaterials
cannot be
replaced by ceramics or polymers
at present because the mechanical strength and toughness are the most
important safety requirements fora biomaterial under load-bearing
conditions.
On the other hand,
metallic materials sometimes show toxicity
and are fractured because of their corrosion and mechanical damages .
Therefore, development of new alloys is continuously trialed.

Anatomy and Metallic Biomaterials
MSc
202 - 202

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