expansion coefficient
[ɪkˈspænʃən ˌkoʊˈɛfɪʃənt]
nounpl: expansion coefficients
coeficiente de expansão
1. A physical quantity that characterizes the tendency of a material to change its volume or length in response to changes in temperature
The expansion coefficient of aluminum is higher than that of steel.
O coeficiente de expansão do alumínio é maior do que o do aço.
2. In thermodynamics, the rate of change of volume or length per unit original volume or length per unit temperature change
Engineers must consider the thermal expansion coefficient when designing bridges.
Os engenheiros devem considerar o coeficiente de expansão térmica ao projetar pontes.
This is a technical term primarily used in physics, engineering, and materials science education and professional contexts in both Brazil and Portugal. In Brazilian universities and engineering firms, the term 'coeficiente de expansão térmica' is particularly common when discussing how materials respond to temperature changes, which is crucial in tropical climates with significant temperature variations.
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