Research Progress of Pressed Sc2O3 Doped Y-Gd-Hf-O Cathode

In order to enhance the scandium oxide doped Y-Gd-Hf-O cathodes anti-electron bombardment ability and prolong its lifetime in continuous wave magnetrons, the scandia doped cathode emitters were prepared by a new pressing technique combined with high temperature sintering in hydrogen atmosphere. Surface microstructure and thermionic emission performance of the cathodes were investigated in this abstract.