Discussion Overview
The discussion revolves around the availability of superconductors suitable for a project involving magnetic levitation demonstrations. Participants explore options for purchasing superconductors that can operate at liquid nitrogen temperatures and are of a specific size, while also considering the feasibility of obtaining such materials.
Discussion Character
- Exploratory
- Debate/contested
Main Points Raised
- One participant seeks to purchase a superconductor with a diameter of 2-5 inches for a demonstration project.
- Another participant notes that 2-5 inches is large for high-temperature superconductors (HTC) and mentions that they have only seen smaller pieces, suggesting that larger pieces may be expensive and difficult to cool without breaking.
- A different participant questions the validity of the previous claim, suggesting that larger superconductors may have been specially made for demonstrations seen in videos.
- Another suggestion is made to purchase superconducting wire from American Superconductor, which manufactures type 2 superconducting wire that retains superconductivity under high magnetic fields and temperatures. This participant also humorously suggests looking for scrap pieces.
Areas of Agreement / Disagreement
Participants express differing views on the availability and practicality of obtaining larger superconductors, with no consensus reached on whether such items can be purchased or if they are typically custom-made for specific applications.
Contextual Notes
There are limitations regarding the assumptions about the size and availability of superconductors, as well as the potential challenges in cooling larger pieces without damage.