3D Printing of Components for the Gas-Discharge Chamber of Electric Rocket Engines

Pogodin, V. A.; Rabinskii, L. N.; Sitnikov, S. A.

doi:10.3103/s1068798x19090156

Cited by 32 publications

(7 citation statements)

References 6 publications

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“…These ceramic materials provide required radio transparency at frequencies from 500 kHz to 2 MHz and higher. The diameter of present experimental chambers reaches 500 mm, with wall thicknesses up to 8 mm (Lurie et al, 2011;Formalev et al, 2015;Pogodin et al, 2016;Poliakov et al, 2016;Ripetsky et al, 2016;Rabinsky et al, 2016b;Skvortsov and Karizin, 2012;Pogodin et al, 2019). It is worth noting that when using ceramic materials, the question arises about their strength qualities, especially at the stage of launching a spacecraft into operational orbit.…”

Section: Introductionmentioning

confidence: 78%

Polymer Precursors for Creating Gas Discharge Chamber for Electric Rocket Engine

Nigmatzyanov¹,

Pogodin²,

Rabinskiy³

et al. 2020

PTQ

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Electric rocket engines are widely used in space technology. Furthermore, at present, electric propulsion engines are also used as mid-flight engines for flights in interplanetary space. On modern spacecraft, the following types of electric propulsion are mostly used: SPT and grid ion thruster. When using these engines as sustainers, it is important is to increase the total power for obtaining the required thrust and specific impulse. With an increase in total power, the volume of the discharge chamber increases, which leads to technological difficulties in the manufacture of discharge chambers from ceramic materials. Thus, the task of finding alternative ceramic materials is relevant and necessary in the development of high-frequency ion thrusters. The article discusses the issues of creating a composite material based on woven quartz materials and organosilicon binder as a precursor filled with silicon nitride for the manufacture of gas discharge chamber (GDC) of high-frequency ion thruster (RFIT). By thermos-gravimetric analysis, a thermosetting binder, which meets the requirements of vibration resistance and electromagnetic permeability of GDC in the megahertz range, was selected. Based on the binder filled with silicon nitride powder, reinforced by quartz woven fabrics, manufactured GDC. The resulting product was tested as part of the laboratory electric propulsion device with a diameter of 100 mm and power of 200W.

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Section: Introductionmentioning

confidence: 78%

Polymer Precursors for Creating Gas Discharge Chamber for Electric Rocket Engine

Nigmatzyanov¹,

Pogodin²,

Rabinskiy³

et al. 2020

PTQ

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“…In order to explain the results obtained it is necessary to consider the transformation of the composite structure with increasing concentration of the metallic phase and to identify a number of areas with characteristic structural features where changes in the magnetic properties should be considered. For composites with isotropic particle distribution, the following concepts are valid [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. As the distance between the ferromagnetic pellets decreases and the composite composition approaches the percolation threshold, the dipoledipole interaction between them increases.…”

Section:    mentioning

confidence: 99%

Study of high-frequency magnetic properties of composites and multi-layer films

Farmakovskaya

Okorokova²,

Perchenok³

2023

E3S Web Conf.

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This paper examines the high-frequency magnetic properties of heterogeneous nanogranular composites (Co45Fe45Zr10)X(Al2O3)100-X, obtained by ion-beam sputtering of composite target on the sitallic substrates. It is shown that in the region of metallic phase concentrations from 32 to 42 at. % μ/ and μ// have high values, which are significantly higher than those of bulk composites of similar composition. As the composite layers approach the threshold, both the real and imaginary portions of the complex magnetic permeability decrease.

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“…A variety of solutions to the pattern of the half-timbered facades of this architectural complex consists in the use of quatrefoil ornaments with rounded petals, quatrefoil ornaments with truncated and pointed foils at the ends of the upper and lower petals of the clubs (the so-called "Moroccan quatrefoil"), Christmas tree motifs, where the lines of branches are oriented downward, as well as parallel straight lines, which also form a certain rhythm and give the image of the ensemble a specific dynamics [112][113][114][115][116][117][118]. The decoration of this manor complex is a group of plastically modelled chimneys laid out with redbrick, shaped like a bolt with two nuts at the ends, which form a decorative thickening of the kind of base and capitals in the column.…”

Section: Features Of Bramall Hall Vernacular Houses Little Moreton Hallmentioning

confidence: 99%

Half-timbered houses of the Tudor and Elizabethan periods in Britain

Школьна

Sosik

Shemenova

et al. 2021

PEN

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Now half-timbered English houses, upholstered on facades with slanting boards that exhibit architectonics of the framework, and laconically painted in black (brown)-white, are gradually becoming a sign of good taste in the construction of other European countries. However, there are almost no scholars who studied the half-timbered buildings of Britain in Ukraine; however, progressively the fashion for such buildings extends to our country. The article is devoted to the monuments of half-timbered architecture of the late Gothic period (1500-1560sduring the Tudor era (1485-1603) and the Renaissance, the epoch of the Elizabethan style (1558-1603)the time of the highest prosperity of England. In the specified century, the foundations of folk architecture of Britain were laid, based on the legacy of German Gothic building techniques. Now the traditional half-timbered houses of England, Scotland, Ireland and Wales are not only preserved and protected by law in the UK but also undergo a time of quality renovation and a new fashion boom. In this regard, it is relevant to study their unique artistic-figurative and technological features, as well as the specifics of arranging interiors in such buildings, gradually starting to capture not only the inhabitants of Northern Europe, but also its East.

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3D Printing of Components for the Gas-Discharge Chamber of Electric Rocket Engines

Cited by 32 publications

References 6 publications

Polymer Precursors for Creating Gas Discharge Chamber for Electric Rocket Engine

Polymer Precursors for Creating Gas Discharge Chamber for Electric Rocket Engine

Study of high-frequency magnetic properties of composites and multi-layer films

Half-timbered houses of the Tudor and Elizabethan periods in Britain

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