Publication detail

Radiative emission from air thermal plasmas with vapour of Cu or W

AUBRECHT, V. BARTLOVÁ, M. COUFAL, O.

Original Title

Radiative emission from air thermal plasmas with vapour of Cu or W

English Title

Radiative emission from air thermal plasmas with vapour of Cu or W

Type

journal article

Language

en

Original Abstract

This paper deals with the net emission coefficients of radiation of air thermal plasmas with admixtures of copper and tungsten as a function of the plasma temperature up to 25 000 K and the arc radius (0.01 to 10 cm) at various pressures. The net emission coefficients are calculated for various equilibrium compositions (mole fractions of Cu and W) of the plasma. Calculations take into account continuum and line radiations, and special attention has also been paid to the fraction of radiation that is below a threshold of 120 nm. From the results it follows that the presence of metallic vapour increases the net emission coefficients even at low temperatures below 10 000 K.

English abstract

This paper deals with the net emission coefficients of radiation of air thermal plasmas with admixtures of copper and tungsten as a function of the plasma temperature up to 25 000 K and the arc radius (0.01 to 10 cm) at various pressures. The net emission coefficients are calculated for various equilibrium compositions (mole fractions of Cu and W) of the plasma. Calculations take into account continuum and line radiations, and special attention has also been paid to the fraction of radiation that is below a threshold of 120 nm. From the results it follows that the presence of metallic vapour increases the net emission coefficients even at low temperatures below 10 000 K.

Keywords

ARC PLASMAS; THERMODYNAMIC PROPERTIES; CROSS-SECTIONS; COEFFICIENTS; PHOTOIONIZATION; LOSSES; GAS

RIV year

2010

Released

03.11.2010

Pages from

1

Pages to

11

Pages count

11

BibTex


@article{BUT50313,
  author="Vladimír {Aubrecht} and Milada {Bartlová} and Oldřich {Coufal}",
  title="Radiative emission from air thermal plasmas with vapour of Cu or W",
  annote="This paper deals with the net emission coefficients of radiation of air thermal plasmas with admixtures of copper and tungsten as a function of the plasma temperature up to 25 000 K and the arc radius (0.01 to 10 cm) at various pressures. The net emission coefficients are calculated for various equilibrium compositions (mole fractions of Cu and W) of the plasma. Calculations take into account continuum and line radiations, and special attention has also been paid to the fraction of radiation that is below a threshold of 120 nm. From the results it follows that the presence of metallic vapour increases the net emission coefficients even at low temperatures below 10 000 K.",
  chapter="50313",
  journal="Journal of Physics D: Applied Physics",
  number="43",
  volume="43",
  year="2010",
  month="november",
  pages="1--11",
  type="journal article"
}