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Synthesis of 6H-SiC single-crystal nanowires in a flow of carbon-silicon high-frequency arc plasma / G. A. Glushchenko [et al.] // Phys. Solid State. - 2014. - Vol. 56, Is. 10. - P. 2107-2111, DOI 10.1134/S106378341410014X. - Cited References: 34. - This study was supported by the National Academy of Sciences of Belarus and the Siberian Branch of the Russian Academy of Sciences within the framework of the Interdisciplinary Integration project no. 24. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
LARGE-SCALE SYNTHESIS
   BETA-SIC NANOWIRES
   FIELD-EMISSION PROPERTIES
   CARBIDE NANOWIRES
   NANORODS
   GROWTH
   NANOSTRUCTURES
   FULLERENES
   DISCHARGE
Аннотация: Silicon carbide 6H-SiC nanoparticles and nanowires were obtained in carbon-silicon high-frequency arc plasma plasma in a helium atmosphere at a pressure of 0.1-0.6 MPa. It was shown that 6H-SiC nanowires grow from the arc plasma, as well as from the vapor, according to the known mechanism of vapor-solid condensation on a cold surface covered with single-crystal silicon carbide nuclei. The content of silicon carbide nanowires in the condensate reached 60 wt %. The obtained single-crystal silicon 6H-SiC nanowires had the diameter of 15-18 nm and length of 200-600 nm.

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Публикация на русском языке Синтез монокристаллических нанопроволок 6H-SiC в потоке углеродно-кремниевой плазмы высокочастотной дуги [Текст] / Г. А. Глущенко [и др.] // Физ. тверд. тела. - 2014. - Т. 56 Вып. 10. - С. 2039-2043

Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Leonova, T. A.; Kolonenko, A. L.; Колоненко, Андрей Леонидович; Dudnik, A. I.; Дудник, Александр Иванович; Osipova, I. V.; Осипова, Ирина Владимировна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Nemtsev, I. V.; Немцев, Иван Васильевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Churilov, G. N.; Чурилов, Григорий Николаевич
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    Корреляция магнитных свойств и содержания железа в продуктах мокрой магнитной сепарации / Э. К. Якубайлик [и др.] // Изв. вузов. Черн. металлургия. - 2015. - Т. 58, № 10. - С. 744-748, DOI 10.17073/0368-0797-2015-10-744-748. - Библиогр.: 10 . - ISSN 0368-0797
   Перевод заглавия: Correlation of magnetic parameters and iron content in products of wet magnetic separation
Кл.слова (ненормированные):
мокрая сепарация -- слив -- концентрат -- удельная намагниченность насыщения -- удельная магнитная восприимчивость -- wet separation -- discharge -- concentrate -- specific saturation magnetization -- specific magnetic susceptibility
Аннотация: Изучено изменение одного из основных параметров мокрого магнитного обогащения - содержания железа - и магнитных характеристик продуктов по технологической схеме обогащения Абагурской обогатительной фабрики (от слива классификаторов до концентрата 2-й стадии). Количество железа в пробах заметно растет с уменьшением крупности частиц. Приращение содержания железа магнетитового по схеме составляет 27,43 %, удельная намагниченности насыщения σ возрастает на 25,8 А·м2/кг; в поле сепарации Н = 175 кА/м прирост удельной намагниченности насыщения аналогичен - 25,76 А·м2/кг. Значения удельной магнитной восприимчивости χ в концентрате в сравнении со сливом выше. С ростом напряженности поля сепарации удельная восприимчивость продуктов уменьшается в несколько раз. По всей схеме обогащения наблюдается пропорциональность значений содержания железа и магнитных параметров продуктов. Учитывая эту закономерность, магнитные характеристики продуктов можно использовать для контроля и регулирования технологических режимов процессов мокрого магнитного обогащения.
The change of one of the main parameters of wet magnetic concentration – the iron content and magnetic characteristics of products made by the concentration technological scheme of Abagur Enrichment Plant (from classifi er discharge to concentrate of the 2nd stage) has been studied. The iron content in the samples is growing signifi - cantly with the decrease of the particle coarseness. The increment of iron magnetite by the scheme is 27.43 %, the specifi c value of saturation magnetization σs increases by 25.8 A·m2/kg. The growth of specifi c magnetization in the separation fi eld H = 175 kA/m is similar – 25.76 A·m2/kg. The values of specifi c magnetic susceptibility χ in the concentrate are higher in comparison with the discharge. The specifi c product susceptibility decreases in several times with the growth of separation fi eld strength. Throughout the concentration scheme the quantity proportionality of iron content and magnetic parameters of products is observed. Taking into an account all the regularities, magnetic characteristics of the products can be used to control and regulate the process of technological modes of wet magnetic separation processes.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Якубайлик, Эдуард Константинович; Yakubailik, E. K.; Балаев, Александр Дмитриевич; Balaev, A. D.; Ганженко, Игорь Михайлович; Ganzhenko I. M.; Бутов, Павел Юрьевич; Butov P. Yu.
}
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    The influence of oxygen concentration on the formation of CuO and Cu2O crystalline phases during the synthesis in the plasma of low pressure arc discharge / A. V. Uschakov [et al.] // Vacuum. - 2016. - Vol. 128. - P. 123-127, DOI 10.1016/j.vacuum.2016.03.025. - Cited References: 19. - This study was supported by the Russian Foundation for Basic Research. (Project No 15-08-02132). . - ISSN 0042-207X
   Перевод заглавия: Влияние концентрации кислорода на формирование кристаллических фаз CuO и Cu2O в процессе синтеза в плазме дугового разряда низкого давления

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
Nanoparticles
Oxide
Кл.слова (ненормированные):
Oxides -- Vapor deposition -- X-ray diffraction -- Transmission electron microscopy (TEM) -- Catalytic properties
Аннотация: This paper describes the synthesis of copper oxide nanoparticles with different percentages of CuO and Cu2O phases. It was achieved by the control of the percentage of oxygen in the gas mixture (N2 + O2) in a plasma-chemical process of evaporation-condensation by means of low-pressure arc discharge. In all the experiments, the pressure in the plasma-chemical reactor remained constant at 60 Pa. By means of X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) it was found that the average particle size was 6 nm, and Cu2O phase content decreases with increasing oxygen content in the gas mixture. High photocatalytic properties of Cu2O powder were shown by the example of the reaction of the methyl orange dye decomposition in water solution. The problems, associated with the performance of this method and the formation of crystalline phases, are discussed.

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Держатели документа:
Siberian Federal University, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Science, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Russian Federation

Доп.точки доступа:
Uschakov, A. V.; Karpov, I. V.; Lepeshev, A. A.; Zharkov, S. M.; Жарков, Сергей Михайлович
}
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Vasil'ev, E. N.
Numerical simulation of the spatial structure of a moving arc discharge / E. N. Vasil'ev, D. A. Nesterov // High Temp. - 2008. - Vol. 46, Is. 6. - P. 746-751, DOI 10.1134/S0018151X08060023. - Cited References: 9 . - ISSN 0018-151X

РУБ Physics, Applied

Кл.слова (ненормированные):
52 -- 80 -- Mg -- Cavity resonators -- Computer simulation -- Discharge (fluid mechanics) -- Magnetic fields -- Three dimensional -- Arc discharges -- Current strengths -- Experimental datums -- Gas flows -- Magnetogasdynamics -- Numerical simulations -- Parallel electrodes -- Physical parameters -- Spatial shapes -- Spatial structures -- State processes -- Transverse magnetic fields -- Electric discharges
Аннотация: Results are given of the calculation of the structure of an arc discharge moving on parallel electrodes in air under the effect of a transverse magnetic field (0.086 T) at a current strength of 320 A. The numerical simulation is performed within an unsteady-state three-dimensional mathematical model of radiation magnetogasdynamics. The calculations reveal that fluctuations of values of physical parameters and of spatial shape of arc arise in the arc, which are caused by the gas flow past the discharge column and by unsteady-state processes in the electrode regions. Comparison is made with the available experimental data.

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Держатели документа:
[Vasil'ev, E. N.
Nesterov, D. A.] Russian Acad Sci, Inst Computat Modeling, Siberian Div, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Institute of Computational Modeling, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 60036, Russian Federation

Доп.точки доступа:
Nesterov, D. A.; Васильев, Евгений Николаевич
}
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Spectral characteristics of an atmospheric-pressure arc discharge during the synthesis of fullerene derivatives / N. G. Vnukova [et al.] // Tech. Phys. - 2008. - Vol. 53, Is. 6. - P. 749-751, DOI 10.1134/S1063784208060133. - Cited References: 17 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
CARBON PLASMA
C-60
Аннотация: The electron concentration and temperature are measured when elements having various ionization potentials are introduced into the carbon-helium plasma that forms in a high-frequency atmospheric-pressure arc discharge. The effect of the introduced elements on the relative fullerene content in a carbon condensate is also studied. The plasma parameters are determined by in situ emission spectral analysis during the synthesis of fullerene derivatives with scandium, sodium, and silicon. The variation of the atomic and molecular line intensities of the plasma radiation with the distance from the carbon-arc axis is investigated upon the introduction of various doping substances. The optimal temperature conditions for the synthesis of fullerene derivatives with Sc, Na, and Si are found.

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Публикация на русском языке Спектральные характеристики дугового разряда атмосферного давления в процессе синтеза фуллереновых производных [Текст] / Н. Г. Внукова, В. А. Лопатин, Н. В. Булина, Г. Н. Чурилов // Журнал технической физики. - 2008. - Т. 78 № 6. - С. 76-78

Держатели документа:
[Vnukova, N. G.
Lopatin, V. A.
Bulina, N. V.
Churilov, G. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Vnukova, N. G.
Churilov, G. N.] Krasnoyarsk State Pedag Univ, Krasnoyarsk 660049, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State Pedagogical University, Krasnoyarsk 660049, Russian Federation

Доп.точки доступа:
Vnukova, N. G.; Внукова, Наталья Григорьевна; Lopatin, V. A.; Лопатин, Владислав Александрович; Bulina, N. V.; Булина, Наталья Васильевна; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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Osipova, I. V.
Spectral characteristics of a 44-kHz arc discharge excited in an atmospheric-pressure argon flow / I. V. Osipova, N. G. Vnukova, G. N. Churilov // Tech. Phys. - 2007. - Vol. 52, Is. 4. - P. 521-523, DOI 10.1134/S1063784207040202. - Cited References: 5 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
GLOW-DISCHARGE
Аннотация: Results are presented from experimental studies of an ac (44-kHz) arc discharge excited in an atmospheric-pressure argon jet between two copper electrodes. The first (central) electrode is a water-cooled rod with an axial opening for argon injection, while the second electrode is a loop of a tube lying in a plane perpendicular to the axis of the central electrode. The argon radiation spectra are measured, and the characteristic intensity profiles of the spectral lines as functions of the distance from the end of the central electrode are determined. All the observed transitions in the 245- to 370-nm wavelength ran-e are identified.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Technical University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Осипова, Ирина Владимировна
}
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Vasil'ev, E. N.
Numerical simulation of interaction between arc discharge and transverse magnetic field / E. N. Vasil'ev, D. A. Nesterov // High Temp. - 2007. - Vol. 45, Is. 2. - P. 137-142, DOI 10.1134/S0018151X07020010. - Cited References: 12 . - ISSN 0018-151X

РУБ Physics, Applied

Кл.слова (ненормированные):
Flow of gases -- Gas dynamics -- Mathematical models -- Molecular interactions -- Velocity distribution -- Arc discharges -- Discharge column -- Magnetogasdynamics -- Magnetic fields
Аннотация: An unsteady-state three-dimensional numerical model of radiation magnetogasdynamics is used to calculate the structure of an arc discharae which interacts with an external transverse maonetic field and transverse gas flow. The velocity field and the distribution of gas temperature obtained as a result of calculations agree with experimental data. The difference between the calculated and measured values of temperature in the discharge column is approximately 5%.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Computat Modeling, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Institute of Computational Modeling, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Nesterov, D. A.; Васильев, Евгений Николаевич
}
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Thin fullerene-containing films synthesized by ion beam sputtering of fullerene mixtures with doping additives in vacuum / A. P. Semenov [et al.] // Tech. Phys. Lett. - 2005. - Vol. 31, Is. 12. - P. 1022-1025, DOI 10.1134/1.2150887. - Cited References: 11 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
DISCHARGE
Аннотация: A new approach to the synthesis of films containing fullerenes and doping elements is described. It is suggested that a cluster mechanism of the target sputtering by accelerated ions makes possible the deposition of fullerenes on a substrate with a certain probability for dopant atoms being introduced into the cavities of fullerene molecules and a higher probability of their occurrence between fullerene molecules. The proposed method has been experimentally implemented by using an Ar+ ion beam to sputter C-60 /C-70 fullerene mixtures (synthesized in a plasmachemical reactor at a pressure of 10(5) Pa) pressed into disk targets with a doping element (Fe, Na, B, Gd, or Se). The ion beam sputtering of dopant-containing fullerene mixtures in a vacuum of similar to 10(-2) Pa allowed micron-thick films containing C-60 and C-70 fullerenes and the corresponding dopant element (Fe, Na, B, Gd, or Se) to be grown on quartz substrates. (C) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Div, Presidium Buryatian Sci Ctr, Dept Phys Problems, Ulan Ude, Buryatia, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk, Russia
Russian Acad Sci, Siberian Div, Inst Geol, Ulan Ude, Buryatia, Russia
ИФ СО РАН
Department for Physical Problems, Presidium of the Buryatian Scientific Center, Russian Academy of Sciences, Ulan-Ude, Buryatia, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Geology, Siberian Division, Russian Academy of Sciences, Ulan-Ude, Buryatia, Russian Federation

Доп.точки доступа:
Semenov, A. P.; Semenova, I. A.; Bulina, N. V.; Булина, Наталья Васильевна; Lopatin, V. A.; Лопатин, Владислав Александрович; Karmanov, N. S.; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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GAVRILYUK, A. P.
RESONANCE OPTICAL DISCHARGE ON THE METAL-SURFACE - ANALYTICAL MODEL / A. P. GAVRILYUK, N. Y. SHAPAREV // Zhurnal Tek. Fiz. - 1993. - Vol. 63, Is. 6. - P. 1-9. - Cited References: 12 . - ISSN 0044-4642

РУБ Physics, Applied

WOS
Доп.точки доступа:
SHAPAREV, N. Y.
}
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10.

GAVRILYUK, A. P.
RESONANCE OPTICAL DISCHARGE AS THE EFFICIENT METHOD OF CREATION OF OVERCOOLED PLASMA / A. P. GAVRILYUK // Zhurnal Tek. Fiz. - 1993. - Vol. 63, Is. 2. - P. 171-174. - Cited References: 6 . - ISSN 0044-4642

РУБ Physics, Applied

WOS
}
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11.

ZAITSEV, N. K.
OPTOGALVANIC REGISTRATION OF THE NO2 FORMATION IN THE MEDIUM PRESSURE GLOW-DISCHARGE / N. K. ZAITSEV, N. Y. SHAPAREV // Zhurnal Tek. Fiz. - 1985. - Vol. 55, Is. 1. - P. 218-220. - Cited References: 10 . - ISSN 0044-4642

РУБ Physics, Applied

WOS
Доп.точки доступа:
SHAPAREV, N. Y.
}
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12.

Zaitsev, N. K.
Application of glow-discharge at atmospheric-pressure for recording of laser-radiation / N. K. Zaitsev, N. Y. Shaparev // Zhurnal Tek. Fiz. - 1980. - Vol. 50, Is. 1. - P. 168-170. - Cited References: 6 . - ISSN 0044-4642

РУБ Physics, Applied

WOS
Держатели документа:
Институт физики им. Л. В. Киренского
Доп.точки доступа:
Shaparev, N. Y.; Шапарев, Николай Якимович; Зайцев, Николай Кондратьевич
}
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13.

Magnetic nanoparticles of iron, nickel and their alloys in carbon matrices / E. A. Goncharova [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P9.22. - P. 411. - References: 2. - This work was supported by the Russian Foundation for Basic Research, Grants No. 16-03-00256, 16-03-00969 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
magnetic nanoparticles -- CVD -- arc-discharge method

Доп.точки доступа:
Goncharova, E. A.; Гончарова Е. А.; Li, O. A.; Ли О.А.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Churilov, G. N.; Чурилов, Григорий Николаевич; Isakova, V. G.; Исакова, Виктория Гавриловна; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Okotrub, A. V.; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

Нет сведений об экземплярах }
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14.

Plasma-chemical synthesis of copper oxide nanoparticles in a low-pressure arc discharge / A. V. Uschakov [et al.] // Vacuum. - 2016. - Vol. 133. - P. 25-30, DOI 10.1016/j.vacuum.2016.08.007. - Cited References:36. - The work was performed with a support of the grant of the Russian Science Foundation (Project No. 16-19-10054) . - ISSN 0042-207X

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
VACUUM-ARC
   PLASMACHEMICAL SYNTHESIS
   THIN-FILM
   DEPOSITION
Кл.слова (ненормированные):
Copper oxide nanoparticles -- Low pressure arc discharge -- Plasma-chemical synthesis -- Paschen curve -- Similarity parameter
Аннотация: The influence of a pressure of gas mixture (10 vol% O2 + 90% N2) on an average size of copper oxide nanoparticles, produced in the plasma of low pressure arc discharge, has been studied as a basic process variable. A correlation between the dependence of average particle size on gas mixture pressure and the dependence of discharge gap voltage on product of interelectrode distance by a gas mixture pressure, has been found. The estimation was carried out by means of X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). A mathematical model of the cathode region, which shows the applicability of the similarity theory to the low pressure arc discharge, has been represented.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Uschakov, A. V.; Karpov, I. V.; Lepeshev, A. A.; Petrov, M. I.; Петров, Михаил Иванович; Russian Science Foundation [16-19-10054]
}
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15.

Controlled synthesis of fullerenes and endohedral metallofullerenes in high frequency arc discharge / G. Churilov [et al.] // Fuller. Nanotub. Carbon Nanostruct. - 2016. - Vol. 24, Is. 11. - P. 675-678, DOI 10.1080/1536383X.2016.1207062. - Cited References: 16. - The work is supported by the Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement № 14.613.21.0010, ID RFMEFI61314X0010). . - ISSN 1536-383X
Кл.слова (ненормированные):
Fullerene -- Endohedral metallofullerenes -- High frequency arc discharge -- Pressure -- Mass spectrum
Аннотация: The article presents the high-frequency arc discharge setup operating in helium atmosphere and applicable for the syntheses of carbon condensate with different dispersion and structure, along with fullerenes and endohedral metallofullerenes. It also highlights how the change of helium pressure in chamber can control the amount and composition of products in carbon condensate. The setup can be applied for the purposes of analysis, for instance in order to obtain information about the process of fullerenes and endohedral met-allofullerenes formation. Also, the fact that the yield of higher fullerenes is increasing with the pressure rise, whereas the yield of endohedral metallofullerenes is decreasing suggests different formation mechanisms. © 2016 Taylor & Francis Group, LLC.

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Держатели документа:
Kirensky Institute of Physics SB RAS, Krasnoyarsk, Russian Federation
Leibniz Institute for Solid State and Materials Research, Dresden, Germany
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Popov, A. A.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Dudnik, A. I.; Дудник, Александр Иванович; Samoylova, N.; Glushenko, G. A.; Глущенко, Гарий Анатольевич
}
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16.

Particularities of the magnetic state of CuO nanoparticles produced by low-pressure plasma arc discharge / A. A. Lepeshev [et al.] // J. Supercond. Nov. Magn. - 2017. - Vol. 30, Is. 4. - P. 931-936, DOI 10.1007/s10948-016-3885-4. - Cited References:38. - The work was performed with a support of the grant of the Russian Science Foundation (project no. 16-19-10054) . - ISSN 1557-1939. - ISSN 1557-1947

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
IRON-OXIDE NANOPARTICLES
PLASMACHEMICAL SYNTHESIS
POROUS-GLASS
Кл.слова (ненормированные):
CuO nanoparticles -- Plasmachemical synthesis -- Magnetic properties -- Vibration magnetometer
Аннотация: Copper oxide nanoparticles were produced by direct plasmachemical synthesis in a plasma arc discharge of low pressure. The formation of CuO nanoparticles with an average size of 12 nm and narrow size distribution intervals was determined by using the x-ray diffraction analysis and TEM microscopy methods. It was defined by using a vibration magnetometer and a SQUID magnetometer, that the magnetic properties of CuO nanoparticles with such size were extremely different from the magnetic properties of bulk antiferromagnetic CuO. Structural defects caused the formation of a ferromagnetic state, remaining at least up to the room temperature. The temperature of corresponding antiferromagnetic ordering was significantly decreased (down to ∼ 100 K). Meanwhile, some of the copper surface spins showed a spin-glass behavior at low temperatures.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lepeshev, A. A.; Karpov, I. V.; Ushakov, A. V.; Balaev, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Petrov, M. I.; Петров, Михаил Иванович; Russian Science Foundation [16-19-10054]
}
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17.

    Particular charactristics of the synthesis of titanium nitride nanopowders in the plasma of low pressure arc discharge / A. V. Ushakov [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012006, DOI 10.1088/1757-899X/255/1/012006. - Cited References: 26
   Перевод заглавия: Особенности синтеза нанопорошков нитрида титана в дуговом разряде плазмы низкого давления
Аннотация: The method of producing TiN nanopowders in the plasma of low pressure arc discharge in nitrogen atmosphere is discussed. The influence of gas pressure on nanopowder dispersion is studied. It is shown that the particles have nanometer size and a narrow particle size distribution.

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Доп.точки доступа:
Ushakov, A. V.; Karpov, I. V.; Lepeshev, A. A.; Лепешев, Анатолий Александрович; Fedorov, L. Y.; Dorozhkina, E. A.; Karpova, O. N.; Shaikhadinov, A. A.; Demin, V. G.; Bachurina, E. P.; Lichargin, D. V.; Abkaryan, A. K.; Zeer, G. M.; Зеер Г.М.; Zharkov, S. M.; Жарков, Сергей Михайлович; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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18.

    The investigation of the influence of oxygen concentration in the gas mixture on nanodispersed oxides synthesis / I. V. Karpov [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012008, DOI 10.1088/1757-899X/255/1/012008. - Cited References: 25
   Перевод заглавия: Исследование влияния концентрации кислорода в газовой смеси на синтез нанодисперсных оксидов
Кл.слова (ненормированные):
Cathodes -- Electrodes -- Particle size -- Vacuum applications -- Average particle size -- Cathode process -- Discharge gaps -- Energy of ions -- Influence of oxygen -- Low pressure arc -- Oxides synthesis -- Superheated gas -- Gases
Аннотация: Thermal effects in cathode space of low-pressure arc discharge, which contribute to the synthesis of nanopowders with an average particle size of less than 10 nm, are considered. One of the most important parameters, characterizing the cathode processes of vacuum arc, is a voltage drop across the discharge gap. All the gases demonstrate a decrease of a voltage drop across the discharge gap under the condition ofincreasing the gas pressure in the range of p = 10-3 - 1 Pa. Dissipation of energy of ions and electrons on gas molecules causes abrupt heating of the gas. Heat, coming from gas plasma, has a significant impact on evaporating material of a cathode. It can be assumed that a microdrop fraction, formed as a result of a cathode spraying in a liquid phase, will further evaporate in a superheated gas.

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Доп.точки доступа:
Karpov, I. V.; Ushakov, A. V.; Lepeshev, A. A.; Лепешев, Анатолий Александрович; Fedorov, L. Y.; Dorozhkina, E. A.; Karpova, O. N.; Shaikhadinov, A. A.; Demin, V. G.; Bachurina, E. P.; Lichargin, D. V.; Abkaryan, A. K.; Zeer, G. M.; Зеер Г.М.; Zharkov, S. M.; Жарков, Сергей Михайлович; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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19.

The structural state of ultrahigh-molecular-weight polyethylene in single-stage arc-discharge plasma deposition of nanoparticles / L. Y. Fedorov [et al.] // Tech. Phys. Lett. - 2017. - Vol. 43, Is. 11. - P. 965-968, DOI 10.1134/S1063785017110037. - Cited References:9. - This work was supported by the Russian Foundation for Basic Research, project no. 16-33-00137 mol_a "Investigation of the Formation of Polymer Composites Modified with Nanodispersed Copper- Oxide Fillers." . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
MECHANICAL ACTIVATION
SURFACE MODIFICATION
UHMWPE
Аннотация: We present the results of a study of the structural state of ultrahigh-molecular-weight polyethylene (morphology, X-ray-diffraction patterns, IR spectra) obtained in a single technological cycle combining the synthesis of nanoparticles and their deposition onto the surface of polymer microgranules. Technological conditions for the preservation of the initial state of ultrahigh-molecular-weight polyethylene are found for its presence in the zone of thermal action of the plasma flow. Mechanisms of degradation of the polymer are discussed.

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Публикация на русском языке Структурное состояние сверхвысокомолекулярного полиэтилена при одностадийном осаждении наночастиц из плазмы дугового разряда [Текст] / Л. Ю. Федоров [и др.] // Письма в Журн. техн. физ. - 2017. - Т. 43 № 21. - С. 24-32

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Res Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Res Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Fedorov, L. Yu.; Karpov, I. V.; Ushakov, A. V.; Lepeshev, A. A.; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Russian Foundation for Basic Research [16-33-00137 mol_a]
}
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20.

Synthesis of nickel–carbon nanoparticles by electrical discharge in liquid / V. S. Burakov [et al.] // J. Appl. Spectrosc. - 2018. - Vol. 84, Is. 6. - P. 1006–1013, DOI 10.1007/s10812-018-0578-8. - Cited References: 16 . - ISSN 0021-9037
Кл.слова (ненормированные):
electrical discharge in liquid -- nickel–carbon nanoparticle
Аннотация: Composite nickel–carbon nanoparticles were synthesized by electrical discharge in liquid. The synthesis was carried out in water and ethanol under various discharge conditions, including purging the discharge gap with argon. In water, electrical discharge was conducted between graphite and nickel electrodes. In ethanol, two nickel electrodes were used with the liquid acting as the carbon supplier. The size of the particles obtained, their composition, and the production rate depend on the type of working fluid and synthesis duration. It was also shown that the particle production rate in water is greater than in ethanol, and purging the electrode gap with argon reduces this rate two or three times.

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Публикация на русском языке Синтез никель-углеродных наночастиц с помощью электрических разрядов в жидкости [Текст] : статья / В. С. Бураков [и др.] // Журн. прикл. спектроскопии. - 2017. - Т. 84 Вып. 6. - С. 927-935

Держатели документа:
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68-2 Nezavisimost’ Ave., Minsk, Belarus
L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Burakov, V. S.; Kiris, V. V.; Nevar, A. A.; Nedelko, M. I.; Tarasenko, N. V.; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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