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Barium-functionalized multiwalled carbon nanotube yarns as low-work-function thermionic cathodes
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10.1063/1.2909593
/content/aip/journal/apl/92/15/10.1063/1.2909593
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/15/10.1063/1.2909593
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SEM and EDS images of Ba-MWCNT yarn after heat treatment at for in vacuum. [(a) and (b)] SEM images of the yarn at different magnifications. (c) EDS image of the yarn.

Image of FIG. 2.
FIG. 2.

Activation process for Ba-MWCNT yarn at and . Inset: Schematic diagram of the electric circuit used for thermionic emission tests.

Image of FIG. 3.
FIG. 3.

(a) curves for Ba-MWCNT yarn at different temperatures. (b) Experimental data (solid squares) and fitted line for a plot of vs for Ba-MWCNT yarn.

Image of FIG. 4.
FIG. 4.

Stress-strain tests for MWCNT yarns after barium functionalization and further heat treatment. Inset: Corresponding Raman spectra.

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/content/aip/journal/apl/92/15/10.1063/1.2909593
2008-04-15
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Barium-functionalized multiwalled carbon nanotube yarns as low-work-function thermionic cathodes
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/15/10.1063/1.2909593
10.1063/1.2909593
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