How to make make electomagnet using superconductor?also tell me how to make superconductors?
You can buy type II superconductors from science supply stores. They are typically a ceramic material, and I believe it’s pretty hard to make them yourself–you need to have high control over the purity of your ceramic mixture and your mixing and heating equipment. You also have to get some pretty unusual stuff, like yttrium oxide for the easiest superconductors. But there are instructions in the first link below. Notice how they warn you of the time it will take to make it. Type II superconductors typically need liquid nitrogen to bring them to their critical temperature. It’s relatively cheap stuff, but it can be difficult to get your hands on without the proper certifications. Many metals, such as lead and aluminum, turn into type I superconductors when cooled with liquid helium. The main problem is, you guessed it, getting your hands on liquid helium. It’s expensive an it requires specialized equipment to store. So type I superconductors are easy to “make” but hard to bring down to
