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PROPERTIES OF MATERIALS, POLIMERS, METALS, OTHER TYPES OF MATERIALS -…
PROPERTIES OF MATERIALS
Physical properties
thermal properties
melting point
thermal conductivity
thermal expansion
electrical-magnetic properties
electrical resistivity
electrical conductivity
Mechanical properties
stiffness
elasticity
toughtness
hardness
brittleness
strength
plasticity
malleability
ductility
Chemical properties
corrosion resistence
flammability
toxicity
Made by ...
Group 1
Marini
Antonelli
Faccini
Degl'Innocenti
POLIMERS
Thermosetting
liquid or malleable at room temperature
can't be remoulded
exemples
PVC
nylon
polyester
polyethylene
Thermoplastic
hard when cooled
can be remoulded in different shapes
exemples
polyester resin
epoxy resin
polyurethane
formica
bakelite
Rubbers
very flexible, good electrical insulator
can return to their original shape after deformation
Natural
synthetic
METALS
Propierties of metals
ductile
shiny
solid at room temperature
malleable
high melting point
good conductors
Non-ferrous ones
duraluminium
bronze
copper
brass
alluminium
Ferrous ones
cast iron
steel
iron
OTHER TYPES OF MATERIALS
Smart materials
react to change in the environment changing his properties
categories
shape memory alloys
return to their original shape after beeing bent when heated
piezoelectric materials
produce small electrical voltage under mechanical stress
Ceramics
made of clay and other materials
properties
good insulator
heat and chemical resistant
Composites
can be
natural
synthetic
made of
two or more materails
matrix
can be
ceramics
metals
polymers
provide flexibility
reinforcement
provide strength and stiffness
are needed to
sport
infrastructure
industries
aerospace
automotive
architecture