Thermal_Optical_2013

Coecient of thermal expansion polymers have the

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Unformatted text preview: an α for the change in volume. ΔV L Lo Vo = αv(T2-T1) Coefficient of Thermal Expansion •  The coefficient of thermal expansion is related to changes in bond lengths upon hea,ng. •  If the energy vs. bond length curve is not symmetric, the average posi2on in which the atom sits shi[s with temperature. •  Bond lengths therefore change (larger for increased T). Coefficient of Thermal Expansion Polymers have the largest coefficients of thermal expansion. Thermal Conduc2vity 3. Thermal conductivity - - The ability of a material to transport heat...
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