Simulation of Dislocations in Metals - Part 2 of 2
As the raft of bubbles is stressed with the slider, dislocations move into and out of the grains and their boundaries.
As the raft of bubbles is stressed with the slider, dislocations move into and out of the grains and their boundaries.
Liquid ethanol is poured into a saturated calcium acetate solution and a solid gel is formed. The gel burns like canned heat (Sterno™).
When the beta form of mercury(II) iodide cools to below the transition temperature of 126°C, it returns to the red/orange alpha form.
An animation illustrates how peeling occurs between layers where bonding is weak in molybdenum disulfide.
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.