Material Nature’s Hardest Lurks in The Teeth of Limpets

You’ve probably heard that spider silk is the world’s strongest material. The truth is that it is stronger than steel, but not as much as Kevlar. At the same time, if that is harder than both. It is without doubt a benchmark, but a group of scientists has discovered a competitor is going to make things very difficult to maintain their position in this singular ranking.

In a study published this month in the journal Royal Society Interace, a few researchers have published a study where it has analyzed the teeth of the eogasteropodos, a type of mollusc collecting several species, including limpets and Yes. In your mouth is the hardest material that is in the world.

Five times stronger than spider silk

The teeth of these molluscs are so small that to see them you need to use microscopes. Tiny fibers that contain goethite, a mineral oxide with a density of 4 to 4.4 and a hardness of 5.5. Limpets, among others, use it to start the meal of stones that are attached.

Research these fibers have been used to calculate the breaking strain that can endure. Tests show that they are capable of withstanding a force of 5 gigapascales. An amount five times greater than that they hold the majority of Spider silks.

How is it able to withstand so much? The size of the fiber is essential. The diameter is a hundredth part than a human hair. Being so fine, dodging the holes and defects in the surface. To make larger structures on the basis of it they have less bugs and therefore are more robust.

The objective of this research is not so much prove how hard that teeth of these molluscs are sinus How can you apply your design in everyday objects where the strength and hardness of the structures is essential. A study that goes into the stream of others many where nature is inspiration for engineering.