| Author | Message | ||
     Ben |
I have gotten instructions on how to build a superconductor off the internet, but there is one question that I can't find the answer to. Cold liquid nitrogen is traditionaly used for the project. I'm not sure where to get liquid nitrogen, but I do know where to get dry ice. Do you know if dry ice would work? | ||
| Simon Quellen Field (Sfield) |
Dry ice will get you to 194 degrees Kelvin. Liquid nitrogen will get you to 77 Kelvin. It seems likely that your superconductor requires a temperature below 139 Kelvin. | ||
| Anonymous |
what are teh components of the superconductor? | ||
| Andrew |
If your question meant that you wanted to know the components of a superconductor: The first superconductors were discovered around 1911. They were made out of plain metal (such as mercury, lead, or bismuth), and became superconductive at very low temperatures (they required liquid helium as a coolant). Around 1986, ceramic superconductors (called perovskites) were discovered. These are called 'High Temperature Superconductors', and they use liquid nitrogen as a coolant (at a much higher temperature than liquid helium). These ceramic superconductors are what we still use today, with compositons like YBa2Cu3O7 and Bi2Sr2Ca2Cu3O10. For more info, go to this site. |
