Plating Pennies with Tin
Learn how to give pennies a beautiful, silvery-colored plating.
Learn how to give pennies a beautiful, silvery-colored plating.
As the raft of bubbles is stressed with the slider, dislocations move into and out of the grains and their boundaries.
A metal bobby pin is heated until red hot, then allowed to cool slowly; this process is called annealing. The annealed bobby pin is very flexible.
An atomic-level simulation shows what happens to the metal bobby pin during the annealing process.
The tempering process, which involves heating a hardened bobby pin then cooling slowly, transforms the brittle metal into springy metal.
An atomic-level simulation shows what happens to the metal bobby pin during the hardening process.
An annealed bobby pin is heated, then cooled quickly; this process is called hardening. The hardened bobby pin is brittle.
An atomic-level simulation shows what happens to the metal bobby pin during the tempering process.
Lithium, a very soft metal, can be cut with a knife.
Magnesium metal is not easily ground or crushed.