Temperature behaviour of titania field emitters realized by suspension plasma spraying

Titania field electron cathodes made with solution precursor plasma spraying (SPS) were investigated. The emission characteristics were measured using a self-made installation. Microstructure analysis was carried out using scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelect...

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Veröffentlicht in:	Surface & coatings technology 2006-10, Vol.201 (5), p.2099-2102
Hauptverfasser:	Tomaszek, R., Znamirowski, Z., Pawlowski, L., Wojnakowski, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cross-disciplinary physics: materials science rheology Electron field emitters Exact sciences and technology Materials science Metals. Metallurgy Other topics in materials science Physics Production techniques Surface treatment Suspension plasma spraying Titania coatings
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Beschreibung
Zusammenfassung:	Titania field electron cathodes made with solution precursor plasma spraying (SPS) were investigated. The emission characteristics were measured using a self-made installation. Microstructure analysis was carried out using scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The electron emission was found to decrease with increasing temperature of tested samples. This was explained in terms of the coating microstructure and, in particular, the phase content and change in dielectric properties of coating components.
ISSN:	0257-8972 1879-3347
DOI:	10.1016/j.surfcoat.2006.04.057