Генерация сверхизлучения импульсным механическим воздействием

The effect of pulsed mechanical activation of radio-frequency superradiation in the parametric mode is established: when an external rheological explosion under high pressure acts on a paramagnetic composite --- a system of crossed spins based on binuclear complexes Co (QH) _2-O-Co (QH) 2 or Mn (QH) _2-O-Mn (QH) 2 (QH --- ligand based on 3,6-di-tert-butylpyrocatechol) in a polystyrene matrix. A possible method for processing data on pulsed mechanical action and a possible explanation of the effect are proposed.

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Молекулярные магнетики --- источники радиочастотного сверхизлучения при механической активации

Письма в журнал технической физики ◽

10.21883/pjtf.2021.01.50453.18451 ◽

2021 ◽

Vol 47 (1) ◽

pp. 23

Author(s):

А.И. Александров ◽

В.Г. Шевченко ◽

И.А. Александров ◽

С.В. Фокин ◽

В.И. Овчаренко

Keyword(s):

Radio Frequency ◽

Mechanical Activation ◽

Molecular Magnet ◽

Rheological Explosion ◽

Polystyrene Matrix ◽

First Time

The effect of mechanical activation of radio frequency superradiance in a composite based on a heterospin molecular magnet and a polystyrene matrix has been established. Mechanical activation was carried out for the first time in unloading mode of rheological explosion .

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Analytical performance of a high-pressure radio frequency-only quadrupole collision cell with an axial field applied by using conical rods

Journal of the American Society for Mass Spectrometry ◽

10.1016/s1044-0305(98)00042-7 ◽

1998 ◽

Vol 9 (8) ◽

pp. 775-788 ◽

Cited By ~ 42

Author(s):

Bashir A. Mansoori ◽

Edward W. Dyer ◽

Christopher M. Lock ◽

Kevin Bateman ◽

Robert K. Boyd ◽

...

Keyword(s):

High Pressure ◽

Radio Frequency ◽

Collision Cell ◽

Analytical Performance ◽

Axial Field ◽

Quadrupole Collision Cell

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Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature

Materials ◽

10.3390/ma14164654 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4654

Author(s):

Alexandr Viktorovich Shchegolkov ◽

Sung-Hwan Jang ◽

Aleksei Viktorovich Shchegolkov ◽

Yuri Viktorovich Rodionov ◽

Olga Anatolievna Glivenkova

Keyword(s):

Carbon Nanotubes ◽

Temperature Field ◽

Mechanical Activation ◽

Thermal Effect ◽

Supply Voltage ◽

Mechanical Energy ◽

Mechanical Action ◽

Multilayer Carbon Nanotubes ◽

Starting Current ◽

Paddle Mixer

The article deals with research related to the issues of nanomodification of elastomers as a basis of electric heaters with self-regulating temperature. The effect of multistage mechanical activation of multilayer carbon nanotubes (MCNTs) with graphite on the uniformity of the temperature field distribution on the surface of nanomodified organosilicon elastomer has been studied. The influence of the stages of mechanical action on the parameters of MCNTs is revealed. It has been ascertained that for the MCNTs/graphite bulk material, which has passed the stage of mechanical activation in the vortex layer apparatus, a more uniform distribution of the temperature field and an increase in temperature to 57.1 °C at the supply voltage of 100 V are typical. The distribution of the temperature field in the centrifugal paddle mixer “WF-20B” for mixing MCNTs with graphite has been investigated. It has been found that there is also a thermal effect in addition to the mechanical action on the MCNTs in the paddle mixer “WF-20B”. The thermal effect is associated with the transfer of the mechanical energy of friction of the binary mixture MCNTs/graphite on the paddle and the walls of the vessel. The multiplicity of the starting current Ip to the nominal In (Ip/In) is 5 for the first sample, 7.5 for the second sample, and 10 for the third sample at the supply voltage of 100 V. The effect of reducing the starting current and stabilizing the temperature indicates the presence of self-regulation, which is expressed in maintaining a certain level of temperature.

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