Tantalum is a metal in group VB of the periodic table with atomic number 73, an atomic weight of 180.95, and a density of 16.6 Mg/m 3. Its melting point is 2996 C, and it boils at 5425 C. In the solid ...

As you might expect from the name, a cryotron depends on superconductivity. The original device was a tantalum wire wrapped with a niobium wire coil. When the device is soaked in liquid helium ...