Role of perovskite-type metal oxides on atmospheric pressure non-equilibrium plasma generation

Kiyokawa, Kazutoshi; Sugiyama, Kazuo; Tomimatsu, Manabu; Kurokawa, Hideki; Miura, Hiroshi

doi:10.1016/s0040-6090(00)01666-7

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…This effect was observed by the authors even in the 1970s and was used for initiating a microwave discharge in gases at pressures of the order of atmospheric pressure [4]. However, the mechanisms leading to the lowering of thresholds of microwave breakdown of heterogeneous media are still unknown and studied [5][6][7].…”

Section: Resultsmentioning

confidence: 98%

Thermometry of microwave discharge in powder mixtures by the thermal radiation spectrum

et al. 2008

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The temperature is determined in pulsed microwave discharges in powder mixtures at atmospheric pressure. The effect of microwave radiation of gyrotron (wavelength of 4 mm, power up to 200 kW, pulse duration of 1 to 10 ms) on a finely divided medium causes the emergence of plasma in a gas medium between solid particles; the thresholds (with respect to power) of generation of plasma in powder mixtures are hundreds of times lower than those in gas. The method of determining the discharge temperature consists in recording the radiation in a wide spectral range (200 to 850 nm) and comparing the obtained spectrum with the Planck spectrum in the Wien region. In the case of similarity of two spectra, the discharge temperature is determined as a parameter of the spectrum under observation. In so doing, no data on the emissivity of discharge are required for determining the temperature. It is demonstrated that microwave-discharge plasma in powders is characterized by a temperature of 2000-3000 K.

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Section: Resultsmentioning

confidence: 98%

Thermometry of microwave discharge in powder mixtures by the thermal radiation spectrum

et al. 2008

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“…Ignition and sustaining of the atmospheric pressure microwave plasma in the investigated fluidized bed system is promoted by the presence of electron emitting materials (graphitic carbon) [16,20]. Bed solid phase (carbon fibers) is dielectrically heated at 2.45 GHz.…”

Section: Cvd From Tma and Role Of Microwave Plasma At Atmospheric Prementioning

confidence: 99%

Atmospheric pressure microwave plasma fluidized bed CVD of AlN coatings

Pajkic

Willert‐Porada

2009

Surface and Coatings Technology

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“…A work function of approximately 5.6(3) eV is reported for La 1 Sr 1Àx CoO 3Àx perovskites in the literature. 11 Consequently, the work function difference is almost zero for Pt electrodes on the oxide film and increased to D1.2 eV when Ta electrodes were used on the oxide film, Table I under bias. Metals that are inert to oxygen such as Au, along with metals that react to oxygen such as Ta and Ag, showed non-linear I-V characteristics in this study.…”

mentioning

confidence: 99%

Electric-field-induced current-voltage characteristics in electronic conducting perovskite thin films

Rupp

Reinhard

Pergolesi

et al. 2012

Applied Physics Letters

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Mixed ionic-electronic conductors (MIECs) such as the (La,Sr)(Co,Fe)O3−d perovskite family are well described in their charge transport through their high temperature applications, i.e., as solid-oxide fuel cell electrodes (600–1000 °C). In this study, the current-voltage (I-V) profiles of these well-known MIEC perovskites are studied between room temperature and 150 °C under bias of ±15 V for potential applications in resistance random access memories. The impact of the metal-oxide interface on the I-V characteristics ranging from ohmic to non-linear hysteretic is discussed for metals of varying work functions and redox potentials, as well as changes in metal electrode distances and areas.

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Role of perovskite-type metal oxides on atmospheric pressure non-equilibrium plasma generation

Cited by 4 publications

References 11 publications

Thermometry of microwave discharge in powder mixtures by the thermal radiation spectrum

Thermometry of microwave discharge in powder mixtures by the thermal radiation spectrum

Atmospheric pressure microwave plasma fluidized bed CVD of AlN coatings

Electric-field-induced current-voltage characteristics in electronic conducting perovskite thin films

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