|
|
|
|
| LEADER |
00000naa0a2200000 4500 |
| 001 |
666923 |
| 005 |
20250819094217.0 |
| 035 |
|
|
|a (RuTPU)RU\TPU\network\38127
|
| 035 |
|
|
|a RU\TPU\network\35751
|
| 090 |
|
|
|a 666923
|
| 100 |
|
|
|a 20220207d2018 k||y0engy50 ba
|
| 101 |
0 |
|
|a eng
|
| 135 |
|
|
|a drcn ---uucaa
|
| 181 |
|
0 |
|a i
|
| 182 |
|
0 |
|a b
|
| 200 |
1 |
|
|a The Radar Absorption Properties of the Hollow Fe3O4 Microspheres Synthesized by the Plasma Dynamic Method
|f I. I. Shanenkov, A. A. Sivkov, A. S. Ivashutenko [et al.]
|
| 203 |
|
|
|a Text
|c electronic
|
| 300 |
|
|
|a Title screen
|
| 320 |
|
|
|a [References: 8 tit.]
|
| 330 |
|
|
|a This work presents the investigations of the radar absorbing properties of the hollow magnetite microspheres. They were produced in one short-time process of the plasma dynamic synthesis. The obtained particles was separated into fractions with sizes from 3 [mu]m to 30 [mu]m (fraction 1), from 30 [mu]m to ~100 [mu]m (fraction 2) and the fraction with size greater than 100 [mu]m (fraction 3). In order to investigate the microwave characteristics of materials, the selected fractions of the hollow microspheres were placed in an epoxy compound. The weight content of the filler in the compound was equal to ≈ 50%. The electromagnetic response of the samples was studied in the coaxial waveguide on the toroidal samples with thickness t=2.2 mm. It was found that particles with sizes <= 30 [mu]m provide the greatest signal attenuation up to -40 dB at the frequency ~ 10.5 GHz. There is also a shift of the absorption maxima in the region of low frequencies with increase in the size of hollow spheres. The samples provide a reflection coefficient smaller than -10 dB in following frequency ranges: 8.8+16.2 GHz (No. 1), 7.4+11.3 GHz (No. 2) and 3.7+5.0GHz (No. 3). Thus, fraction 1 has a band of operating frequencies at the -10dB level of almost an octave. The sample on the base of initial synthesized powder allows attenuating the EM signal (below -10 dB) in the frequency range from 3.7 to 15.6 GHz, due to the presence of particles with a broad size distribution.
|
| 463 |
|
|
|t 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)
|o St. Petersburg, Russia, 22-25 May, 2017
|v [P. 2889-2893]
|d 2018
|
| 610 |
1 |
|
|a электронный ресурс
|
| 610 |
1 |
|
|a труды учёных ТПУ
|
| 610 |
1 |
|
|a powders
|
| 610 |
1 |
|
|a magnetic separation
|
| 610 |
1 |
|
|a toroidal magnetic fields
|
| 610 |
1 |
|
|a plasmas
|
| 610 |
1 |
|
|a compounds
|
| 610 |
1 |
|
|a electromagnetics
|
| 610 |
1 |
|
|a порошки
|
| 610 |
1 |
|
|a магнитная сепарация
|
| 610 |
1 |
|
|a плазма
|
| 610 |
1 |
|
|a радиопоглощающие свойства
|
| 610 |
1 |
|
|a магнитные поля
|
| 610 |
1 |
|
|a электромагнетизм
|
| 610 |
1 |
|
|a соединения
|
| 701 |
|
1 |
|a Shanenkov
|b I. I.
|c specialist in the field of electric power engineering
|c Associate Professor of the Department of Tomsk Polytechnic University, Candidate of Sciences
|f 1990-
|g Ivan Igorevich
|3 (RuTPU)RU\TPU\pers\32880
|9 16728
|
| 701 |
|
1 |
|a Sivkov
|b A. A.
|c Specialist in the field of electric power engineering
|c Professor of Tomsk Polytechnic University, Doctor of technical sciences
|f 1951-
|g Aleksandr Anatolyevich
|3 (RuTPU)RU\TPU\pers\32273
|9 16262
|
| 701 |
|
1 |
|a Ivashutenko
|b A. S.
|c specialist in the field of electrical engineering
|c Associate Professor of the Tomsk Polytechnic University, Candidate of technical sciences
|f 1981-
|g Alexander Sergeevich
|3 (RuTPU)RU\TPU\pers\33076
|9 16908
|
| 701 |
|
1 |
|a Zhuravlev
|b V. A.
|g Viktor Alekseevich
|
| 701 |
|
0 |
|a Wei Guodong
|
| 701 |
|
0 |
|a Li Guangshe
|
| 701 |
|
0 |
|a Han Wei
|
| 712 |
0 |
2 |
|a Национальный исследовательский Томский политехнический университет
|b Инженерная школа энергетики
|b Отделение электроэнергетики и электротехники
|3 (RuTPU)RU\TPU\col\23505
|
| 801 |
|
2 |
|a RU
|b 63413507
|c 20220207
|g RCR
|
| 856 |
4 |
|
|u https://doi.org/10.1109/PIERS.2017.8262247
|
| 942 |
|
|
|c CF
|
