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Linear Thermal Expansion Coefficient
 
The linear thermal expansion coefficient is only slightly affected by alloying (RT to 250 °C).
 
phys1
Public Reference(s): 42 43
 
 
Mean Curve:
Linear expansion coefficient with reference to the 20 °C value. To be used for large temperature changes.
 
Differential Curve:
Representing the coefficient of the tangent to the "dilatometer curve" at a certain temperature. To be used for small temperature changes.
 
Alloying has no or only minor effect on the thermal expansion coefficient (temperature range 20 - 250 °C)
 
Public Reference(s): 30
 
 
Pure Magnesium
 
Temperature (°C)
Therm. Exp. * 10 ^ (-6)
Reference(s)
(-90) - (+17)
21.3
Public Reference(s): 24
0 - 160
27.3
Public Reference(s): 27
20 - 100
26.0 - 26.1
Public Reference(s): 29 30 31
20 - 200
27.0 - 27.1
Public Reference(s): 29 31
20 - 300
27 - 28
Public Reference(s): 30 31
20 - 400
28.9
Public Reference(s): 29
20 - 500
29
Public Reference(s): 30
 
 
Baker's Equation (differential values?)
 
Public Reference(s): 28 30
 
Thermal Expansion = 19.9 * 10 ^ (-6) + 1.88 * 10 ^ (-8) * T (T in Kelvin) 20 - 550 °C
 
phys2
     
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