公开(公告)号：US09646796B1

公开(公告)日：2017-05-09

申请号：US14218680

申请日：2014-03-18

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Jin-Shu Wang ,  Wei Liu ,  Li-Ran Dong ,  Qiang Wang ,  Xiang Liu ,  Fan Zhou ,  Mei-Ling Zhou ,  Tie-Yong Zuo

IPC: H01J19/06 ,  H01K1/04 ,  H01J1/14 ,  H01J1/28 ,  H01J1/142 ,  H01J1/20 ,  H01J9/04

CPC classification number: H01J1/28 ,  H01J1/14 ,  H01J1/142 ,  H01J1/20 ,  H01J9/042

Abstract: A method of manufacturing carburized Lu2O3 doped Mo cathodes for thermionic emission for magnetrons is described. The Lu2O3 doped Mo powder is prepared by sol-gel method. The powder is reduced thoroughly in hydrogen atmosphere. Afterwards, the powder is die-pressed into pellets, followed by sintering in hydrogen and carburization in activated carbon powder to obtain the carburized Lu2O3 doped Mo cathode.