{"title":"STUDY OF RADIO TRANSPARENCY AND DIELECTRIC PERMITTIVITYOF GLASS-AND ARAMID EPOXY COMPOSITES","authors":"А.М. Yermakhanova","doi":"10.31489/2023no2/70-78","DOIUrl":null,"url":null,"abstract":"Aramide-epoxy-filled composites are widely used for manufacturing in the structures of modern aerospace vehicles. Not only do they have excellent mechanical properties, but they are also radio-transparent materials for wave transmission. In this work, an epoxy-filled composite and a fibreglass were made by vacuum infusion for a comparative study on radio transparency and dielectric permittivity. The radio transparency of the materials analyzed has been evaluated by measuring in free space in the frequency ranges of 1-6 GHz. According to the results of radio transparency, aramide-epoxy-filled composite suffers less electromagnetic wave losses than in fibreglass. When measuring the dielectric permittivity of the aramide-epoxy-filled composites, a low average value of 2.874 has been set, whereas for the fibreglass is defined at 4.","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eurasian Physical Technical Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31489/2023no2/70-78","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
Aramide-epoxy-filled composites are widely used for manufacturing in the structures of modern aerospace vehicles. Not only do they have excellent mechanical properties, but they are also radio-transparent materials for wave transmission. In this work, an epoxy-filled composite and a fibreglass were made by vacuum infusion for a comparative study on radio transparency and dielectric permittivity. The radio transparency of the materials analyzed has been evaluated by measuring in free space in the frequency ranges of 1-6 GHz. According to the results of radio transparency, aramide-epoxy-filled composite suffers less electromagnetic wave losses than in fibreglass. When measuring the dielectric permittivity of the aramide-epoxy-filled composites, a low average value of 2.874 has been set, whereas for the fibreglass is defined at 4.
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