Lamellae (materials)

From Freepedia

Lamellae are gill-shaped structures: fine sheets of material held near one another, with fluid in between. They appear in biological and engineering contexts such as filters and heat exchangers. The microscopic structures in bone and nacre are lamellae in the materials science sense of the word, below.

In chemistry (especially mineralogy and materials science), lamellar structures are fine layers, alternating between different materials. They can be produced by chemical effects (as in eutectic solidification, biological means, or a deliberate process of lamination such as pattern welding.

The term has been used to describe the construction of lamellar armour, as well as the layered structures that can be described by a lamellar vector field.