The document discusses various material properties including physical, mechanical, and chemical properties. It provides examples of specific material properties like density, thermal conductivity, tensile strength, and electrical conductivity. It also lists common materials like aluminum, steel, copper, wood and describes some of their key properties and applications. Overall, the document serves as a reference for different material properties and how they relate to material selection and applications.

1. Lesson 1

2.  application
 design of components
 material protection (from corrosion,
damage, etc.)

3. 1. Physical properties
2. Mechanical properties
3. Chemical properties

4.  colour –light wave length
 specific heat – the heat required to raise
the temperature of one gram of a
substance by one degree centigrade
(J/kg K)

5.  density – mass per unit volume
expressed in such units as kg/cm33
 thermal conductivity –rate at which
heat flows through a given material (W/m
K)

6.  melting point – a temperature at which a
solid begins to liquify
 electrical conductivity – a measure of
how strongly a material opposes the flow
of electric current (Ω⋅m)

7.  coefficient of thermal expansion –
degree of expansion divided by the
change in temperature (m/°C)

8.  tensile strength – measures the force
required to pull something such as
rope,wire or a structural beam to the
point where it breaks
 ductility – a measure of how much strain
a material can take before rupturing

9.  malleability – the property of a material
that can be worked or hammered or
shaped without breaking
 brittleness –breaking or shattering of a
material when subjected to stress (when
force is applied to it)

10.  elasticity – the property of a material
that returns to its original shape after
stress (e.g. external forces) that made it
deform or distort is removed
 plasticity - the deformation of a material
undergoing non-reversible changes of
shape in response to applied forces

11.  toughness – the ability of a material to
absorb energy and plastically deform
without fracturing
 hardness – the property of being rigid
and resistant to pressure; not easily
scratched

12.  machinability – the property of a
material that can be shaped by
hammering, pressing, rolling

13.  corrosion resistance - a material's
ability to resist deterioration caused by
exposure to an environment

14. Material Properties
aluminium
rubber
ceramics
steel
copper
lead
nylon
cast iron
wood

15. Material Properties
aluminium lightness ; strength
rubber elasticity ; insulation
ceramics thermal resistivity
steel strength
copper conductivity ; corrosion resistance
lead high density; ductility
nylon strength ; toughness
cast iron damping capacity
wood insulation ; environmental
friendliness

16. Material Application
aluminium
rubber
ceramics
steel
copper
lead
nylon
cast iron
wood

17. Material Application
aluminium foil; aircraft; window frame
rubber tyres,; seal; gasket
ceramics furnace; brick
steel section; pipe
copper pipe; cables
lead storage battery; radiation protection
ballast; bullets
nylon rope; clothing
cast iron engine block; valves
wood furniture; deck

18. gold -gold - 19300 kg/m19300 kg/m33
uranium -uranium - 19100 kg/m19100 kg/m33
lead -lead - 11340 kg/m11340 kg/m33
steel -steel - 7800 kg/m7800 kg/m33

19. Material Tensile Strength UTS (Ultimate Tensile
Strength)
carbon nanotubes 62000 M62000 MPPaa
((theoreticaltheoretical300000 M300000 MPPa)a)
48000 kNm/kg48000 kNm/kg
carbon fibre 5650 MPa5650 MPa 3200 kNm/kg3200 kNm/kg
glass fibre 4700 M4700 MPPaa 1340 kNm/kg1340 kNm/kg
spider web 1000 MPa1000 MPa 900 kNm/kg900 kNm/kg
high-strength steel 1200 M1200 MPPaa 154 kNm/kg154 kNm/kg

20. Material Conductivity
silver 63 x 1063 x 1066
S/m (1/ohm)S/m (1/ohm)
copper
59.6 x 1059.6 x 1066
S/m (1/ohm)S/m (1/ohm)
gold
45.2 x 1045.2 x 1066
S/m (1/ohm)S/m (1/ohm)
aluminium
37.8 x 1037.8 x 1066
S/m (1/ohm)S/m (1/ohm)

21. Material Specific resistance
polyethylene terephthalate (PET(PET)) 10102020
ohmohm
glass 10101414
ohmohm
rubber 10101313
ohmohm

22. Forging - a manufacturing process
where metal is shaped by plastic
deformation under great pressure into
high strength parts.
Casting – pouring or injecting molten
metal into a mold containing a cavity with
the desired shape