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Expansion coefficient

The linear expansion coefficient (α) presents a parameter describing the monodimensional expansion of a solid body due to a temperature change.

The expansion behavior of glass affects the formation of stresss, for instance during cooling down or because of a thermal shock.

Usually the temperature range between 20 and 300 °C is regarded.

(Samples: bar-shaped, length: 50 mm, thickness: 3-8 mm, at least two test pieces)