Effect of a Coating Deposited on Foam Glass on the Ability to Absorb High-Frequency Electromagnetic Radiation

Kaz’mina, O. V.; Suslyaev, V. I.; Dorozhkin, K. V.; Kaimonov, Maksim; Stebeneva, V. I.

doi:10.1007/s10717-018-0061-2

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…With the advantage of porous structures, foam materials can be used as supports for composites by providing a large contact area for the fillers. For example, a film containing ilmenite has been proposed for depositing on foam glass to improve its absorption properties for electromagnetic radiation with high frequency due to its low reflection and light weight [ 28 ]. Moreover, Leong et al introduced and optimized the pore density of aluminum foams to further improve heat transfer in electronic systems, taking advantage of the high thermal conductivity and large contact surface area of metal foams [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

The Activation of Ti-Zr-V-Hf Non-Evaporable Getter Films with Open-Cell Copper Metal Foam Substrates

et al. 2020

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Secondary electron emission (SEE) inhibition and vacuum instability are two important issues in accelerators that may induce multiple effects in accelerators, such as power loss and beam lifetime reduction. In order to mitigate SEE and maintain high vacuum simultaneously, open-cell copper metal foam (OCMF) substrates with Ti-Zr-V-Hf non-evaporable getter (NEG) coatings are first proposed, and the properties of surface morphology, surface chemistry and secondary electron yield (SEY) were analyzed for the first time. According to the experimental results tested at 25 °C, the maximum SEY (δmax) of OCMF before and after Ti-Zr-V-Hf NEG film deposition were 1.25 and 1.22, respectively. The XPS spectra indicated chemical state changes of the metal elements (Ti, Zr, V and Hf) of the Ti-Zr-V-Hf NEG films after heating, suggesting that the NEG films can be activated after heating and used as getter pumps.

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Section: Introductionmentioning

confidence: 99%

The Activation of Ti-Zr-V-Hf Non-Evaporable Getter Films with Open-Cell Copper Metal Foam Substrates

et al. 2020

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Improving the shielding efficiency and weight reducing of the radio-absorbing coating by adding a matching layer

Dorozhkin

Suslyaev

Kaz’mina

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The spectra of complex permittivity of the composites consisting of rubber silicone compound and electroconductive fine-dispersed silver-coated copper powder were investigated. To enhance the effectiveness of the composite interaction with microwaves and reduction of its weight and dimensions characteristics two and three-layer constructions were produced. Matching layers were made of foam glass material with addition SiC and Fe3O4.

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Numerical modeling of electromagnetic scattering from complex shape object with coating

Legenkiy

Khrychov

2021

Frequenz

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Designing and creating invisible samples of military equipment is important modern science and technical problem. Physically, this is equivalent to reducing the object RCS. It requires fast and accurate tools (experimental or theoretical ones) to determine the RCS of different objects to which various means of reducing visibility are applied. The experimental studies require a lot of time and money, also it provides incomplete information about the object. So, it is important to create numerical effective and physically justified method for the theoretical determining of the complex shape objects RCS. There are well known numerical methods such as SBR. However, in this method there is no suitable approach for effective coating calculating, in particular such coating as a tent. The main goal of this paper is proposing a new method for taking into account some coating that is used for the object masking. To improve the accuracy of such modeling, it is necessary to use a large number of facets. Thus, recalculation of the set of parameters for the coating becomes also a difficult and time-consuming task. Therefore, it is important to develop a method for quickly assessing the effect of the certain coating parameters on the object RCS.

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Effect of a Coating Deposited on Foam Glass on the Ability to Absorb High-Frequency Electromagnetic Radiation

Cited by 3 publications

References 13 publications

The Activation of Ti-Zr-V-Hf Non-Evaporable Getter Films with Open-Cell Copper Metal Foam Substrates

The Activation of Ti-Zr-V-Hf Non-Evaporable Getter Films with Open-Cell Copper Metal Foam Substrates

Improving the shielding efficiency and weight reducing of the radio-absorbing coating by adding a matching layer

Numerical modeling of electromagnetic scattering from complex shape object with coating

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