Complex imitation of outer space factors

Abraimov, V. V.; Negoda, A.A.; Zavalishin, A.P.

doi:10.15407/knit1995.02.076

Cited by 5 publications

(3 citation statements)

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“…X-ray diffraction analysis showed that during the synthesis of hollow ZnO particles, peaks related to the wurtzite structure (P63mc) are recorded, and there are no amorphous phases. Changes in the constant lattices are associated with various tensile stresses caused by packing defects and leading to inelastic deformation of the lattice [6]. Such distortions occur along the a axis [10].…”

Section: Resultsmentioning

confidence: 99%

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Radiation Induced Defects in Hollow Particles of Zinc Oxide

Dudin

Нещименко

2020

SSP

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Radiation stability of ZnO hollow particles under 100 keV proton and electron exposure have been investigated. The experimental data were compared with the calculated ones obtained by modeling in the GEANT4 software package. Hollow particles have better radiation stability compared with bulk microparticles cause by low defects accumulation in the hollow particles, which was confirmed by simulation in GEANT4.

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Section: Resultsmentioning

confidence: 99%

“…Irradiation was carried out on a complex simulator of space factors [6] by protons and electron with an energy of 100 keV, a fluence of 5×10 15 cm −2 , a flux density of 1×10 12 cm −2 s −1 , in a vacuum of 5×10 -5 Pa. Similar values were set in GEANT4.…”

Section: Methodsmentioning

confidence: 99%

Radiation Induced Defects in Hollow Particles of Zinc Oxide

Dudin

Нещименко

2020

SSP

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“…The studied polyimide films were affected by SF (simulated in the laboratory) in a complex simulator of 8 space factors CSSF ( Fig. 2), developed at the Institute for Low Temperature Physics and Engineering of NAS of Ukraine, which was described in detail in [5], and briefly -in [1]. Fig.…”

Section: Materials and Methods Of Researchmentioning

confidence: 99%

Effect of the Transatmospheric Sun Electromagnetic Radiation, Simulated Laboratory, on the Mechanical Properties of the KAPTON H Type Polyimide Films

2019

EEJP

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The mechanical properties (limit of forced elasticity, fracture stress, total deformation to failure and its components) of a 75 mm-thick polyimide film of kapton H type under uniaxial tension conditions at 293 K after exposure to the outer space factors were studied. The electromagnetic radiation of the transatmospheric Sun in the wavelength range of 250-2500 nm (EMRS) for 100 hours and vacuum ultraviolet (VUV) and ultra soft x-ray (USX) radiation in the range of 1.24-170 nm – for 100 and 500 hours were simulated under laboratory conditions. The effect of separate exposure in each of the wavelength ranges was investigated. It was found that after irradiation in the both wavelength ranges the films remained in a forced-elastic state. The tension diagrams, like in the initial state, have two stages. The contributions of the elastic, irreversible and highly elastic (delayed and reversible at test temperature) components to the total deformation to failure were determined. It was found that the limit of forced elasticity increased after irradiation both with EMRS, and with VUV and USX radiation. In this case an increase in the limit of the forced elasticity under the influence of EMRS was caused by heating of the film in the course of irradiation, and under the influence of VUV and USX radiation – by radiation effects. The fracture stress and total deformation to failure change weakly and only under the influence of VUV and USX radiation. With changing the duration of exposure to VUV and USX radiation (100 or 500 hours), the fracture stress and the total deformation to failure change non-monotonously. The negative consequence of exposure to VUV and USX radiation is the contribution values redistribution of the individual components of the total deformation to failure. VUV and USX radiation within 500 hours leads to a halving of the contribution of elastic deformation, which is reversible at deformation temperature.

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Optical Properties and Radiation Stability of Al2O3 Microparticles, Nanoparticles and Microspheres

Yurina

Нещименко

2020

J. Synch. Investig.

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Complex imitation of outer space factors

Cited by 5 publications

References 0 publications

Radiation Induced Defects in Hollow Particles of Zinc Oxide

Radiation Induced Defects in Hollow Particles of Zinc Oxide

Effect of the Transatmospheric Sun Electromagnetic Radiation, Simulated Laboratory, on the Mechanical Properties of the KAPTON H Type Polyimide Films

Optical Properties and Radiation Stability of Al2O3 Microparticles, Nanoparticles and Microspheres

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