Emission Characteristics of O- Ions from a Bare Surface of Yttria-Stabilized Zirconia (YSZ) at Elevated Temperatures

Emission Characteristics of O- Ions from a Bare Surface of Yttria-Stabilized Zirconia (YSZ) at Elevated Temperatures

Thermionic emission of O negative ions, O-, from a bare surface of YSZ was studied with a quadrupole mass spectrometer equipped with an energy filter, which is capable of detecting negative ions. Emission characteristics of O- ions were investigated at 725-925 C under pressures of 1.4 x 10-4 to 3.2...

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Veröffentlicht in:Japanese Journal of Applied Physics 2002-06, Vol.41 (Part 2, No. 6A), p.L657-L659
Hauptverfasser: Fujiwara, Yukio, Kaimai, Atsushi, Hong, Jeong-Oh, Yashiro, Keiji, Nigara, Yutaka, Kawada, Tatsuya, Mizusaki, Junichiro
Format: Artikel
Sprache:eng
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Zusammenfassung:Thermionic emission of O negative ions, O-, from a bare surface of YSZ was studied with a quadrupole mass spectrometer equipped with an energy filter, which is capable of detecting negative ions. Emission characteristics of O- ions were investigated at 725-925 C under pressures of 1.4 x 10-4 to 3.2 x 10-4 Pa. Mass spectra of emitted negatively charged particles showed that O- ions are emitted into a vacuum from the bare YSZ surface at elevated temperatures. By examining the energy distributions of O- ions, the number of emitted O- ions was found to increase with the temperature of YSZ. 21 refs.
ISSN:0021-4922
DOI:10.1143/JJAP.41.L657