The metallurgical silver diffusion compound consisting of hafnium and OFHC copper in vacuum on the electrode of the plasma torch. With this type of hafnium core, this leads to improved sealing, which improves the service life of the electrodes (nozzles) under these difficult working conditions.

So we have significantly better properties than the mechanically used hafnium electrodes. The reason, as I said, is the stable and strong connection between the hafnium core and the copper body.