The relative change in linearity of the interlayer at each degree of temperature increase. The difference between linear expansion coefficient and volumetric expansion coefficient. The coefficient of thermcal expansion must be considered in the design of composite materials structures. It affects the dimensional stability and stress distribution of members. It is directly related to the use performance of composite materials. In engineering, quartz tube thermal expansion meters are often used to measure the thermal expansion coefficient.
Fundamental of Material Science -> Performance basis of materials