“What happens when a solid phase and a liquid phase merge together?”
A material’s composition is often in multiple different phases. Sometimes, they are in a solid phase, sometimes a liquid, and sometimes a proportion of the two. So what happens when two of such compositions come together? Well, if the material is just at the right composition as well as the temperature, then the two phases will merge to forge a new phase known as a peritectic! Although peritectics are not as common as their simpler cousins eutectics and eutectoids, peritectics are just as much of a wonderful illustration of the laws of nature!