Materials
These properties refer to the visible feature of a material.
Physical Properties.
When a metal is combined with other materials or metals the resulting product is called...
Alloy
What are polymers?
Chemical compunds made of long chains of molecules with specific felxibility
A mix of clay and sand (or other materials)
Ceramics
What kind of properties flammability and oxidation are?
Chemical properties
The alloy made of iron and carbon is called...
Steel
... synthetic
What is a composite?
The union of two or more different materials that become stronger when combined.
What is the opposite of electrical conductivity?
Electrical resistivity
This alloy is very good for welding... and also for a prize
Bronze
Materials that soften when they are heated so they can be moulded into shapes.
Thermoplastics
Make an example of Smart material
Shape memory alloy / Piezoelectric materials
The ability of a material to resist deformation in response to an applied force or load is called...
Stiffness.
Name at least three fields in which aluminium and its alloys are used.
Aerospace, building industry, packaging, transportation.
Hard, rigid, good electrical insulators. They are used for printed circuit boards.
Epoxy resins
In which fields are composite mainly used? (name at least two)
Automotive, aerospace, architecture, sport.
The ability of a material to resist repeated stress cycles, bending or tension is called...
Fatigue.
It is hard but brittle. It is resistant to wear. Low melting point and excellent machinability. It is used in pipes, machine and industry parts.
Cast Iron
This material is mainly used to make plastic bags. It has low strength and hardness but hig ductility and impact strength.
Polyethylene
These composites are lightweight, strong, resistant to corrosion and can be use to produce a variety of shapes.
Carbon fiber and fiberglass.