Experimental Evaluation of the Temperature Dependence of the Absorption of Metal Oxide Powders Heated by a 527-GHz Gyrotron Radiation

Experimental Evaluation of the Temperature Dependence of the Absorption of Metal Oxide Powders Heated by a 527-GHz Gyrotron Radiation

In this paper, the temperature dependence of the absorption index of Al 2 O 3 , ZnO, and TiO 2 powders at a frequency of 527 GHz was studied. A continuous-wave gyrotron with an output power up to 240 W was used as a microwave power source for heating the samples. The power absorbed by the samples wa...

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Veröffentlicht in:Technical physics letters 2021-11, Vol.47 (11), p.827-829
Hauptverfasser: Tsvetkov, A. I., Mansfeld, D. A., Vodopyanov, A. V., Sedov, A. S.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Aluminum oxide
Classical and Continuum Physics
Continuous radiation
Cyclotron resonance devices
Metal oxides
Physics
Physics and Astronomy
Power sources
Temperature dependence
Titanium dioxide
Zinc oxide
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Zusammenfassung:In this paper, the temperature dependence of the absorption index of Al 2 O 3 , ZnO, and TiO 2 powders at a frequency of 527 GHz was studied. A continuous-wave gyrotron with an output power up to 240 W was used as a microwave power source for heating the samples. The power absorbed by the samples was measured in the temperature range from 300 to 1000°C. A significant increase (by four to six times) in the absorption index was observed as compared with the experiments at a frequency of 263 GHz.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785021080277