{"title":"Optimization of Metglas 2605SA1 and PZT-5A Magnetoelectric Laminates for Magnetic Sensing Applications.","authors":"Eugene Freeman, Joshua Harper, Nishit Goel, Steven J Schiff, Srinivas Tadigadapa","doi":"10.1109/ICSENS.2016.7808845","DOIUrl":null,"url":null,"abstract":"<p><p>Via optimization of the mechanical coupling, alignment of Metglas<sup>®</sup> magnetic domains, relief of residual stress, and operation of the PZT-5A under a DC electric field of 2 kV/cm an unprecedented magnetoelectric voltage coefficient of 9.52 V/cm-Oe is achieved; resulting to a magnetic field sensitivity of 150 pT at 20 Hz for a d31 Metglas<sup>®</sup>/PZT-5A laminate. Mechanical coupling is improved by reducing the thickness and porosity of the epoxy. The Metglas<sup>®</sup> residual stress reduction and easy axis alignment is accomplished by a 30 minute 400 °C anneal under a 1600 Oe magnetic field in vacuum. Finally, a DC electric field bias is applied to increase the <i>d</i> <sub><i>31</i></sub> coefficient of the PZT-5A piezoelectric.</p>","PeriodicalId":74503,"journal":{"name":"Proceedings of IEEE Sensors. IEEE International Conference on Sensors","volume":"2016 ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/ICSENS.2016.7808845","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE Sensors. IEEE International Conference on Sensors","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSENS.2016.7808845","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2017/1/9 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
Via optimization of the mechanical coupling, alignment of Metglas® magnetic domains, relief of residual stress, and operation of the PZT-5A under a DC electric field of 2 kV/cm an unprecedented magnetoelectric voltage coefficient of 9.52 V/cm-Oe is achieved; resulting to a magnetic field sensitivity of 150 pT at 20 Hz for a d31 Metglas®/PZT-5A laminate. Mechanical coupling is improved by reducing the thickness and porosity of the epoxy. The Metglas® residual stress reduction and easy axis alignment is accomplished by a 30 minute 400 °C anneal under a 1600 Oe magnetic field in vacuum. Finally, a DC electric field bias is applied to increase the d31 coefficient of the PZT-5A piezoelectric.
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