Volumetric Thermal Expansion Coefficient

Volumetric thermal expansion coefficient, abbreviated as \(\alpha_v\) (Greek symbol alpha), also called coefficient of volumetric thermal expansion, is the ratio of the change in size of a material to its change in temperature.

 

Volumetric thermal expansion coefficient Formula
\(\large{ \alpha_v  =  \frac{ V_f \;-\; V_i }{ V_i \; \left( T_f \;-\; T_i  \right)   }   }\)
Symbol	English	Metric
\(\large{ \alpha_v }\)  (Greek symbol alpha) = volumetric thermal expansion coefficient	\(\large{ \frac{in^3}{in^3\;F} }\)	\(\large{ \frac{mm^3}{mm^3\;C} }\)
\(\large{ T_f }\) = final temperature	\(\large{F}\)	\(\large{C}\)
\(\large{ T_i }\) = initial temperature	\(\large{F}\)	\(\large{C}\)
\(\large{ V_f }\) = final volume	\(\large{in^3}\)	\(\large{mm^3}\)
\(\large{ V_i }\) = initial volume	\(\large{in^3}\)	\(\large{mm^3}\)