Open AccessЭкспериментальная оценка температурной зависимости показателя поглощения порошков оксидов металлов при их нагреве излучением гиротрона с частотой 527 GHz
Author(s) -
А.И. Цветков,
Д.А. Мансфельд,
А.В. Водопьянов,
А.С. Седов
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.16.51327.18808
Subject(s) - gyrotron , microwave , materials science , attenuation coefficient , radiation , absorption (acoustics) , analytical chemistry (journal) , range (aeronautics) , atmospheric temperature range , power (physics) , optoelectronics , optics , chemistry , physics , composite material , chromatography , quantum mechanics , meteorology
The temperature dependences of the absorption coefficient of Al2O3, ZnO, TiO2 powders at a frequency of 527 GHz are investigated. A gyrotron with an output power of up to 240 W in CW mode was used as a radiation source for heating the samples. The power absorbed in the samples was measured in the temperature range from 300 to 1000 ° C (for some samples). Compared with experiments at a frequency of 263 GHz, a significant increase (by a factor of 4 - 6) in the absorption coefficient is observed. The results may be of interest to researchers involved in microwave heating of materials.