Fabrication and emission property of LaC2-Mo cathode - Details

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EI Scopus

Abstract：

A　new　kind　of　cathode,　LaC2-Mo　cathode　was　prepared　through　spark　plasma　sintering　method　by　using　the　mixed　powder　of　LaC2　which　was　prepared　by　vacuum　melting　method　and　molybdenum.　It　was　found　that　the　emission　properties　of　LaC2-Mo　cathode　increases　with　the　LaC2　content　increasing.　The　emission　current　density　of　LaC2-Mo　cathode　which　contains　3.5wt.%　LaC2　could　reach　0.90A/cm2　at　1400b　whereas　that　of　LaC2-Mo　cathode　with　10wt.%　LaC　2　could　reach　3.02A/cm2　at　1400b.　Richardson　Work　function　of　LaC2-Mo　with　LaC2　3.5wt%　is　2.53eV.　©　2013　IEEE.

Keyword：

Lanthanum compounds Molybdenum Spark plasma sintering Cathodes Vacuum technology

Author Community：

[ 1 ] [Wang, Jinshu]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
[ 2 ] [Liu, Wei]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
[ 3 ] [Li, Changcai]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
[ 4 ] [Dong, Liran]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
[ 5 ] [Zhou, Meiling]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
[ 6 ] [Zuo, Tieyong]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China