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Glass Composition

Definition

Chemical formulation, distinct from the forming process and stress treatment. Composition describes formulation, tempering concerns a treatment and stress distribution, and lamination describes an assembly of bonded plies. These are different characteristics.

Context
Glass properties

For example, two glass objects can differ in stress treatment or assembly even when a selected compositional measurement cannot distinguish their formulations.

Do not infer one from the name of another. Fracture behaviour and comparisons require observations appropriate to the actual glass and assembly.

Related terms

Lamination
Bonding of plies through interlayers to form an assembly. These are different characteristics. Do not infer one from the name of another....
Tempering
Treatment producing a residual stress distribution that changes strength and fracture behaviour. Composition describes formulation, tempering concerns a treatment and stress distribution,...
Within-Source Variation
The natural variation observed among multiple samples collected from a single source location. Used to estimate the probability of the observed difference...

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