Guillermo Cosarinsky , Javier Fava , Marta Ruch , Adrián Bonomi
{"title":"Material Characterization by Electrical Conductivity Assessment Using Impedance Analysis","authors":"Guillermo Cosarinsky , Javier Fava , Marta Ruch , Adrián Bonomi","doi":"10.1016/j.mspro.2015.04.020","DOIUrl":null,"url":null,"abstract":"<div><p>Eddy currents non destructive testing is a well known method for material characterization, which is sensitive to different properties of conductive materials, such as: electrical conductivity, magnetic permeability, phase proportions, hardness, size, discontinuities, etc. These properties alter the flow of the currents induced in the sample under test by an AC magnetic field. One of the most common applications of the method is the evaluation of electrical conductivity, by a procedure that requires at least two reference standards, and is not valid for very thin samples (less than 1<!--> <!-->mm, roughly). In this paper a variation of that procedure is proposed, in which only one reference standard is needed. The procedure allows for the evaluation of conductivities in the range 0.9 - 59 MS/m on planar samples with thickness greater than 30<!--> <!-->μm.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"9 ","pages":"Pages 156-162"},"PeriodicalIF":0.0000,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.04.020","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Procedia Materials Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211812815000218","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Eddy currents non destructive testing is a well known method for material characterization, which is sensitive to different properties of conductive materials, such as: electrical conductivity, magnetic permeability, phase proportions, hardness, size, discontinuities, etc. These properties alter the flow of the currents induced in the sample under test by an AC magnetic field. One of the most common applications of the method is the evaluation of electrical conductivity, by a procedure that requires at least two reference standards, and is not valid for very thin samples (less than 1 mm, roughly). In this paper a variation of that procedure is proposed, in which only one reference standard is needed. The procedure allows for the evaluation of conductivities in the range 0.9 - 59 MS/m on planar samples with thickness greater than 30 μm.
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