Open AccessPlasma-chemical processes in the mixtures “metal-organic compound” and “metal-inorganic salt” initiated by pulse radiation of gyrotron
Author(s) -
Н. С. Ахмадуллина,
Н. Н. Скворцова,
Ekaterina A. Obraztsova,
В. Д. Степахин,
Е. М. Кончеков,
Yu. F. Kargin,
А. А. Коновалов,
Oleg N. Shishilov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1686/1/012012
Subject(s) - microwave , gyrotron , pulse duration , metal , plasma , analytical chemistry (journal) , materials science , melamine , salt (chemistry) , pulse (music) , chemistry , nuclear chemistry , power (physics) , optics , organic chemistry , metallurgy , composite material , thermodynamics , laser , physics , quantum mechanics , detector
Plasma-chemical processes in the mixtures of metal+organic compound and metal+inorganic salt under treatment by microwave pulses are described. The microwave pulses were generated by high-power gyrotron (frequency 75 GHz, power up to 550 kW, pulse duration from 0.1 to 15 ms). Al + melamine (1:1, 2:1 and 3:1 by molar) and Al + Al 2 O 3 + NH 4 Cl (1:2:2 and 1:2:4 by molar) were treated in air with microwave pulses with power of 150-K350 kW and duration of 2^8 ms. It was found that the discharge can be easily initiated for both mixtures at minimal pulse duration of 2 ms. For Al + melamine mixture the energy threshold for the discharge depends linearly on the mass content of Al and does not exceed 1.0 kJ/g. For Al + Al2O3 + NH4Cl the threshold is also below 1.0 kJ/g. The products of treatment of Al + melamine contain mainly starting materials and no nitride phases, in case of Al + Al 2 O 3 + NH4Cl some traces of Al11O15N were identified.