THERMIONIC EMISSION PROPERTIES OF BORON-RICH LAB6 AND CEB6 CRYSTAL CATHODES

Authors
OTANI S ISHIZAWA Y
Citation
S. Otani et Y. Ishizawa, THERMIONIC EMISSION PROPERTIES OF BORON-RICH LAB6 AND CEB6 CRYSTAL CATHODES, Journal of alloys and compounds, 245, 1996, pp. 18-20
Citations number
4
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
245
Year of publication
1996
Pages
18 - 20
Database
ISI
SICI code
0925-8388(1996)245:<18:TEPOBL>2.0.ZU;2-C
Abstract
LaB6.06, and CeB6.07 crystals were obtained by the floating zone metho d. Their thermionic emission properties were compared with those of th e stoichiometric crystal cathodes, Increasing boron content decreased the evaporation rate, which determines the life time of the cathodes, without influence on the emission properties. Accordingly, composition control was found to be very effective for extending the lifetime of the cathodes.