26 March 2013

Average Coefficient of Expansion for some Materials Near Room Temperature


 Average Coefficient of Expansion for some Materials Near Room Temperature
Material
Average Linear Expansion Coefficient (α)(°C)-1
Aluminum
24 x 10-6
Brass and bronze
19 x 10-6
Concrete
12 x 10-6
Copper
17 x 10-6
Glass (ordinary)
9 x 10-6
Glass (pyrex)
3.2 x 10-6
Invar (Ni-Fe alloy)
0.9 x 10-6
Lead
29 x 10-6
Steel
11 x 10-6
Acetone
1.5 x 10-4
Alcohol, ethyl
1.12 x 10-4
Benzene
1.24 x 10-4
Gasoline
9.6 x 10-4
Glycerin
4.85 x 10-4
Mercury
1.82 x 10-4
Turpentine
9.0 x 10-4
Airnote 1 at 0°C
3.67 x 10-3
Heliumnote 1
3.665 x 10-3
Note 1: “Gases do not have a specific value for the volume expansion coefficient because the amount of expansion depends on the type of process through which the gas is taken. The values given here assume the gas undergoes an expansion at constant pressure (Serway and Vuille 2012, pg 278).”
 (source:
 Serway, Raymond A., and Chris Vuille. College Physics . 9th Hybrid. Boston, Ma: Brooks/Cole, 2012.)

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