H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
H01J1/02—Main electrodes
H01J1/13—Solid thermionic cathodes
H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Procede pour braser une electrode metallique sur un element en ceramique en carbure de silicium electriquement conducteur et element en ceramique en carbure de silicium realise selon le procede