Nested cylindrical members with mounted magnets increase heat capacity without enlarging the external footprint of the device.
Nested coupling coil reduces power supply complexity by serving multiple heating zones and auxiliary loads through universal inductive transfer.
Adjusting SiO2, Al2O3, and CuO ratios lowers high temperature viscosity to 30 Pa·s at 1680°C while maintaining electrical resistivity below 100 Ω·cm.